5

Not yet answeredMarked out of 5.00Flag questionProvide an appropriate response.The mean age of bus drivers in Chicago is 50.6 years. If a hypothesis test is perform...

Question

Not yet answeredMarked out of 5.00Flag questionProvide an appropriate response.The mean age of bus drivers in Chicago is 50.6 years. If a hypothesis test is performed, how should you interpret a decision that fails to reject the null hypothesis?Select one: A There is sufficient evidence to reject the claim | = 50.6. B. There is sufficient evidence to support the claim p = 50.6. C. There is not sufficient evidence to support the claim p = 50.6_ D. There is not sufficient evidence to reject the cl

Not yet answered Marked out of 5.00 Flag question Provide an appropriate response. The mean age of bus drivers in Chicago is 50.6 years. If a hypothesis test is performed, how should you interpret a decision that fails to reject the null hypothesis? Select one: A There is sufficient evidence to reject the claim | = 50.6. B. There is sufficient evidence to support the claim p = 50.6. C. There is not sufficient evidence to support the claim p = 50.6_ D. There is not sufficient evidence to reject the claim p = 50.6_ Previous page Next page



Answers

Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, or critical value(s), then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Use the P-value method unless your instructor specifies otherwise. Use the normal distribution as an approximation to the binomial distribution, as described in Part 1 of this section. A random sample of 860 births in New York State included 426 boys. Use a 0.05 significance level to test the claim that $51.2 \%$ of newborn babies are boys. Do the results support the belief that $51.2 \%$ of newborn babies are boys?

Now what is this statement? A researcher claims that the standard deviation off the life off a certain type of lawn mower is at most 2.8 years. So the standard deviation is at most two point ideas. So which means this is less than or equal to two point. This is going to be my null hypothesis. See, I have unequal to sign. So this will go into the hypothesis and my alternative hypothesis will be that my sigma or my sanity vision is greater than 2.8 years now. If I had object minor like this is what did I see? I will say that I have enough statistical evidence to say that the standard deviation is more than 2.8 years. Andi. If I failed to reject final hypothesis, I will say that I do not have enough statistical evidence to say that the standard deviation off the life of a certain type of lawn mower is more than 2.8 years. All right, this will be my answer

Properly. 23. Good. Today it's note new. It's smaller battery quickly. 45 and alternative than you. It's bigger than do you mind that having t is equal to X bar minus you note over s over square root off at which is equal to 48 minus 45/5 480.4 over a square root off 25 which is equal to 2.778 for could should be the The value is a number off or interval in the column of title table five containing the T value is in the row off the F equal toe number off size when this one is 20 five minus one, which is 24 so that we value his between oh point over five and a four point or one. So if they devalue smaller than significantly developing, the non hypothesis is rejected and they be value here is smaller than a 0.1. So we reject then on high processes. So we can say that there is sufficient evidence to support Beckley

In this exercise, we're going to be testing the hypotheses. The passenger car owners were late License plate lose at a higher rate than owners of commercial trucks. So we have data concerning two samples. One sample is, uh, off the passenger cars on another sample is for commercial tracks. So we're told that out of the 2049 passenger cars, 239 cars were elated the license plate laws, while out of 334 commercial trucks 45 violated the license plate laws. So we're going to test this hypothesis at the 0.5 significance level. Andi, uh, this being a one tailed test, the critical value is going to be 1.1 point 65 one 0.645 And our another hypothesis is going to be P one equals p two. Which is to say that the proportions are the same. Vous is the alternative report. This is P one is greater than p two, which means that there is a higher proportion for the passenger cars violating the license plate lose. So for us to get the test statistic, we need to substitute the values into the formula to get set. And in our case, P one heart is obtained from uh X one, which is 239 who have violated the laws divided by 2049. And for P two hot. We're going to halve the proportion 45 those who violated divided by the total sample size, which is 334. And when we substitute these values into the that statistic, this is what we have. So for P one hut, we have zero 0.117 minus p too hot, which is 0.135 And so that Z supposed to be minus zero. Then you divide that by the square root off PBA. When you walk out the value P bite 0.119 multiplied by Cuba, which is zero 0.88 one. And we need to divide that by, uh, n one, which is 2049. And after that we added to 0.11 90 speedball time 0.8 81 Cuba divide by end two, which is 300 that you for, And when you simplify, you get the value off that the completed values that is negative 0.942 So the critical value here is going to be the negative critical value. And in this case, when you compare there using this craft, you'll see that we come. The critic The rejection that's the critical region is at negative 1.645 When we shared this region, we'll be able to see the rejection region. So when we place the calculated the test statistic in this carve, it will be before the critical value that is negative 0.942 And for that we make the conclusion to feel to reject denial hypothesis because the test statistic is not within the critical region. Yeah, so this claim is so there is not sufficient evidence to support the claim that the car owners were lit license plate lose at higher it than owners off the commercial trucks. Now we need to create a 95 a confidence interval for this, And to do that, we need to get imagine off era E by substituting the values into the formula here and e his zero point 03 29 and when we substitute the values will get that they call confidence Interval will be. Uh huh. Negative 0.509 It's less than P one, minus P. Two. She's less than zero 0.1 49 and you can notice that zero is within the confidence interval. In other words, zero they enter. The confidence interval contains zero. And because the confidence interval contain zero, there is not significant is not there is a significant difference between there is not a significant difference between the two proportions. In other words, there is not enough evidence to support the claim that the car owners of they're left license plate lose at a hair. Written the owners off commercial tracks. So both the hypothesis test on the confidence interval. I agree that there is not sufficient evidence to support the claim that car owners valued lesson tracks. Leave clues, uh, at a higher rate

In this question, we're asked to state the no and alternative hypotheses that would be used for the following claims. So in a the claim is there is a difference in mean age of employees at two companies. So the no hypothesis is the state of of no difference. So and say the mean age of employees at company A minus the mean age of employees. The company B is zero. So the alternative hypothesis is that there is a difference in ages, which is the same as saying difference between the means is not equal to zero for be the mean of population. One is greater than the mean of population to So the no hypothesis would be that the mean of population one minus mean of population to is equal to zero. And the alternative hypothesis is the claim that the mean of population one is greater than that of to which is, I mean one minus mean of to is greater than zero. The part see the mean yield of sunflower seeds in North Dakota is less than the mean yield in South Dakota. So the no hypothesis is that they're the same, which is the mean in south minus the mean in north is equal to zero. The alternative hypothesis is that the mean in South Dakota is greater than the mean in North Dakota means that this would be greater than zero for party. The claim is there is no difference in the mean number of hours spent studying between male and female students. So the no hypothesis is by convention, no difference between two populations. So we'll state that clean as the no hypothesis that is, there is no difference in the mean number of hours. So we can state that as the mean number of hours female study minus the number of hours that male study is equal to zero. There is no difference. So an alternative hypothesis to that would be that I mean hours spent by female studying, minus the mean our spent by mail. Studying is not equal to zero.


Similar Solved Questions

5 answers
The speci c heat of of a substance is: the change in its temperature caused by adding Jof heat the amount of heat energy to change its state without _ changing Its temperature the amount of heat energy necessary to raise its temperature by the amount of heat energy [ per kilogram to raise its temperature by
The speci c heat of of a substance is: the change in its temperature caused by adding Jof heat the amount of heat energy to change its state without _ changing Its temperature the amount of heat energy necessary to raise its temperature by the amount of heat energy [ per kilogram to raise its temper...
5 answers
8 1 ncreds larch p oo pc iC 3 1 1 Depho "'2A,ns 1Hdl 1 1 Numnhcr rhe M 1 Dicualubuke IH Minox calnker F Mncupolrubr trer rrnal cpilln [ (nrough | H cupilan hd, Aluxnnt Ehc bud; 1 unin F I clcctroltc, H 1 741 I0 1 1
8 1 ncreds larch p oo pc iC 3 1 1 Depho "'2A,ns 1 Hdl 1 1 Numnhcr rhe M 1 Dicualubuke IH Minox calnker F Mncupolrubr trer rrnal cpilln [ (nrough | H cupilan hd, Aluxnnt Ehc bud; 1 unin F I clcctroltc, H 1 741 I0 1 1...
5 answers
Question 11How many radians per second is 2 rev/second?4T2TQuestion 12
Question 11 How many radians per second is 2 rev/second? 4T 2T Question 12...
2 answers
For any real number a R, defineSa = {(21,12) € R? 2} + 22 < 2, %1 E2 < a}.Answer the following questions and give brief justification of your answers_For what values of a is the set Sa open? For what values of a is the set Sa neither open, nor closed? For what values of a is the set Sa closed?It may help to draw a picture of Sa for different values of a_
For any real number a R, define Sa = {(21,12) € R? 2} + 22 < 2, %1 E2 < a}. Answer the following questions and give brief justification of your answers_ For what values of a is the set Sa open? For what values of a is the set Sa neither open, nor closed? For what values of a is the set S...
5 answers
Question 13pointAn amount of S5,000 is deposited into an account for which the interest rate Is 3% per annum; Calculate the amount in the account after years correct to Ihe nearest cent, if:(a) The interest is compounded monthly: (Enter the number only: )Number(b) The interest is compounded continuously: (Enter the number only:)Numbercalculation only round your final answer to two decimal places. Note: do not round intermediate steps in your
Question 13 point An amount of S5,000 is deposited into an account for which the interest rate Is 3% per annum; Calculate the amount in the account after years correct to Ihe nearest cent, if: (a) The interest is compounded monthly: (Enter the number only: ) Number (b) The interest is compounded con...
5 answers
25 13. Find the inverse transform of F (s) = s2_1
25 13. Find the inverse transform of F (s) = s2_1...
5 answers
Consider the difterential equation:16y 289y3t + 2 cos(17t) .Find the general solution to the corresponding homogeneous equation. In your answer, Use C and c t0 denote arbitrary constants Enter C as € l and c2 as62b. Apply the mechod of undetermined coefhcients to find particular solucionSolve che initial value problem corresponding to the initial conditions v(O) 0 and / (0)Give your answer 35Answer;
Consider the difterential equation: 16y 289y 3t + 2 cos(17t) . Find the general solution to the corresponding homogeneous equation. In your answer, Use C and c t0 denote arbitrary constants Enter C as € l and c2 as62 b. Apply the mechod of undetermined coefhcients to find particular solucion S...
5 answers
Work & 5 needed to stretch spring from its naturul length of 32 cm length 50 cm Suppose that J of much work (in J) i5 needed to stretch the spring from 40 em 42 cm? (Round Your dnaten t0 two decimal pluces. ) How force of 35 keep the spring stretched? (Round your answer one decimal place: How far beyond its natural length (in cn) will
work & 5 needed to stretch spring from its naturul length of 32 cm length 50 cm Suppose that J of much work (in J) i5 needed to stretch the spring from 40 em 42 cm? (Round Your dnaten t0 two decimal pluces. ) How force of 35 keep the spring stretched? (Round your answer one decimal place: How f...
1 answers
Solve the given problems. The sales tax in a city is $7.00 \% .$ The price tag on an item is $D$ dollars. If the store has a $19 \%$ off price tag sale, express the total cost of the item as a function of $D$
Solve the given problems. The sales tax in a city is $7.00 \% .$ The price tag on an item is $D$ dollars. If the store has a $19 \%$ off price tag sale, express the total cost of the item as a function of $D$...
1 answers
OUTTTT |Renression Sarutic Muliiple R Squdre Adjusted R Squure Stanrard Etror Obselvation;0.7050 0,4979 4038 13 JuJANvASucicorceRegression Residual Total3071.1429 10Z3,7143 5 2894 0 0I00 3096.6571 193,5411 6167.8 Stondord Lower Upper Errof Scot Pvalue 9596 31.6705 3675 0.1919 10.2403 23,9868 0,397 1.0940 01.2902 0.3485 1,0918 0,2917 1.2050 0.2457 0.2669 0.9699 0402 17319 0.1025 4,2840 42,5211Coctflcients ntetcepl 43.1517 0,.4716 0.3515 19.12025000 4000 1.B000
OUTTTT | Renression Sarutic Muliiple R Squdre Adjusted R Squure Stanrard Etror Obselvation; 0.7050 0,4979 4038 13 JuJ ANvA Sucicorce Regression Residual Total 3071.1429 10Z3,7143 5 2894 0 0I00 3096.6571 193,5411 6167.8 Stondord Lower Upper Errof Scot Pvalue 9596 31.6705 3675 0.1919 10.2403 23,9868 0...
5 answers
IntervalTest ValueSign f' (x)Result
Interval Test Value Sign f' (x) Result...
5 answers
A 70 kg physics student is running down the hall when he bumps into a chair with mass of 30 kg (the chair is not moving) After the collision; the two objects (student and chair) move together with velocity 3m/s.aWhat will be the final momentum of these objects?b What was the initial velocity of the running students?c If the collision lasted 0.15 seconds, what force did each object exert on the other?l
A 70 kg physics student is running down the hall when he bumps into a chair with mass of 30 kg (the chair is not moving) After the collision; the two objects (student and chair) move together with velocity 3m/s. a What will be the final momentum of these objects? b What was the initial velocity of t...
5 answers
Find the [ extrema 1Ncither ucul Minimum1 Local Miaimun
Find the [ extrema 1 Ncither ucul Minimum 1 Local Miaimun...

-- 0.071969--