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# Samples of packets of cereal filled by two different machines were examined, and the following results about the mass (x grams) of the contents were obtainedSample ...

## Question

###### Samples of packets of cereal filled by two different machines were examined, and the following results about the mass (x grams) of the contents were obtainedSample SizeMeanVarianceMachine 340.9 16.82 Machine B 341.4 8.63 Test whelher the mean masses of contents in packets lilled by the two machines are significantly different at the 5% level. Assume that the masses of contents in packets filled by each machine are normally distributed, and that the two normal distributions have equal variances_H

Samples of packets of cereal filled by two different machines were examined, and the following results about the mass (x grams) of the contents were obtained Sample Size Mean Variance Machine 340.9 16.82 Machine B 341.4 8.63 Test whelher the mean masses of contents in packets lilled by the two machines are significantly different at the 5% level. Assume that the masses of contents in packets filled by each machine are normally distributed, and that the two normal distributions have equal variances_ Hint: use the formula Test statistic when sampling from normally distributed populations: population variances known 7) Professor Abena Mensah Microbiology instructor, decides examine (wo classes consisting of 40 and 50 students, respectively_ In the first class Ihe mean grade was 74 with standard devialion of 8, while in the second class the mean grade was 78 with standard devialion of 7 . Is Ihere significant difference between the performance of the two classes at the 0.01 level? Hint: use the formula Test statistic when sampling from normally distributed populations: population variances known  #### Similar Solved Questions

##### Esll 2017Physics 2012 Cunsiucr infinitely Joug. uniformly charged tuire Wh uneir cmairc densily Gauss' < LAM , derive the equalion for the clectric field at # dislance from the wire. Show all 4) (10 pts) Usng Aan:0: 9 ( = 5^ C
Esll 2017 Physics 2012 Cunsiucr infinitely Joug. uniformly charged tuire Wh uneir cmairc densily Gauss' < LAM , derive the equalion for the clectric field at # dislance from the wire. Show all 4) (10 pts) Usng Aan: 0: 9 ( = 5^ C...
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4. Solve for the given variable: a.8y - 3 = -4y + 6 12y Ht` 7n +6 Qu- ( 70| 4 4 1- 12 | Gn b. 4(5n 1) + 16 = 12 - 3(4 ~Zn) ~x+5 = 2 X-6 3 d. 6t + 2t- 4 =22 3 e. 4-4-0...
##### 0.14. (8 marks Use Lagrange Multiplier method to find the extreme values of 2x2 subject to x2 y2 =36_
0.14. (8 marks Use Lagrange Multiplier method to find the extreme values of 2x2 subject to x2 y2 =36_...
##### The probability that two students give the same wrong answer on a 4 answer multiple choice question, assuming that they're answering completely at random, is 1/3. What's the probability that; out of 10 wrong answers, at least of them are the same wrong answer? A. 0.9966 B. 0.0034 C.0.9803 D. 0.0197
The probability that two students give the same wrong answer on a 4 answer multiple choice question, assuming that they're answering completely at random, is 1/3. What's the probability that; out of 10 wrong answers, at least of them are the same wrong answer? A. 0.9966 B. 0.0034 C.0.9803 ...
##### A consumer organization wants to estimate the actual tread wear index of a brand name of tires that claims "graded 150" on the sidewall of the tire_ A random sample of n = 19 indicates a sample mean tread wear index of 148.9 and a sample standard deviation of 15.4. Complete parts (a) through (c)Assuming that the population of tread wear indexes is normally distributed, construct a 90% confidence interval estimate of the population mean tread wear index for tires produced by this manufa
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##### There is method for estimating definite integral similar to Simpson rule which we will call Paul s Peculiar Rule: It requires that we divide the interval into number of subintervals divisible by four. Then ,"M4-[Ja f() dr ~ 9 ( - f6) - f() 16 2 f(rik+1) K=0 Ild=1 ~12 f(14k+2) + 16 f(c4k+3) - 2 f(Ia)) K0 L=0 Write short python program called PPR (a,b,n,f) which estimates J f(r)dr according to Paul's Peculiar Rule using subintervals Warning: Watch out for the very last sum_ It starts at
There is method for estimating definite integral similar to Simpson rule which we will call Paul s Peculiar Rule: It requires that we divide the interval into number of subintervals divisible by four. Then , "M4-[ Ja f() dr ~ 9 ( - f6) - f() 16 2 f(rik+1) K=0 Ild=1 ~12 f(14k+2) + 16 f(c4k+3) -...
##### Mutation in the TYR gene produces protein that has different structure than the original tyrosinase protein; thus creating second TYR allele This second TYR allele, produces tyrosinase protein that results ess melanin production: The phenotype associated with this allele is blond hair, blue eyes and light colored skin:Shown below the same TYR gene DNA that was shown in Problem Two base pairs are highlighted in the DNA strand. Assume there these locations that changes the highlighted base the nit
mutation in the TYR gene produces protein that has different structure than the original tyrosinase protein; thus creating second TYR allele This second TYR allele, produces tyrosinase protein that results ess melanin production: The phenotype associated with this allele is blond hair, blue eyes and...
##### Homework chaptor Gasos Queslion 26 0l 30 (1 point) Questlon Attempt: 0i 5Consider the followlng samples of gas:sample composition pressurc | tempcraturc mol Xe (g) 260. 'Csomple composition prcssurc tempcrature mol Xe () 1,5 Mmmol Xc2,6 An229 '2.7 mol Ne () 2.8 l 2,7 mol He (g) 1,0 atm-54. 'Mo1,2 Mm276, 'â‚¬=54, "CSelect the *graphs below that show the dstributlons of the speed of the atomns euch Sumnple(Drag the slider to choose an Image)(Drag the slider to choose an Im
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##### The number of credits being taken by sample of 13 full-bre college sludents are listed belox Find Ihe mean; modan,und mode dl Ine G 11 11 8 7 7 7 90 B. The data sot does not have madianDoes Ihe median represent the center of the daia?0A Tho median represents the center The median does not represent the center bocause it is Ihe smallest dala value 0 c The medlan does noi represent the conter because nota dala valuo. 0 D. The median does not represent the center because it is the largest data valu
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##### Biased coin has a 0.37 chance Of coming up heads when flipped.Let X be the number of heads when we flip this coin 5 times.Question:Find P(X<2), that is, find the probability of obtaining less than 2 heads,You can round your answer to two decimal places after the decimal point; like 0.13 or 0.89.
biased coin has a 0.37 chance Of coming up heads when flipped. Let X be the number of heads when we flip this coin 5 times. Question: Find P(X<2), that is, find the probability of obtaining less than 2 heads, You can round your answer to two decimal places after the decimal point; like 0.13 or 0....
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##### A frame of reference is a coordinate system within which an observer measures _______ and _________.
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