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Questiou 8 (Total:4 marks) A Superstore is interested in estimating the average annual expenditure on extended health for employees in the industry. In a pilot stu...

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Questiou 8 (Total:4 marks) A Superstore is interested in estimating the average annual expenditure on extended health for employees in the industry. In a pilot study, a random sample of 15 stores was chosen_ The mean annual expenditure was found to be $251.50 with a sample standard deviation of$9.49. Assume that the distribution across different stores in the industry is normally distributed. A) On the basis of the pilot study, determine a 99% confidence interval for |4, the actual mean annual expenditure 0n benefits. marks) B) The firm wants its results to be accurate within $1.50 with 95% confidence. How large a sample size does the firm need to take? (2 marks) (Must use Z, not t_ This will be fine as long as n is greater than 30.) Answers Similar Solved Questions 5 answers Chapter 10_ Problem 062 In the figure, three 0.03 kg particles have been glued to rod of length and negligible mass and can rotate around perpendicular axis through point at one end; How much work required to change the rotational rate (a) from to 20,0 rad/s (b) from 20. rad/s to 40 rad/s, and (c) from 40.0 rad/s to 60.0 rad/s? (d) What is the slope of plot of the assembly's kinetic energy (in joules_ versus the square of its rotation rate (in radians-squared per second-squared)?(a) NumberU Chapter 10_ Problem 062 In the figure, three 0.03 kg particles have been glued to rod of length and negligible mass and can rotate around perpendicular axis through point at one end; How much work required to change the rotational rate (a) from to 20,0 rad/s (b) from 20. rad/s to 40 rad/s, and (c) f... 5 answers (3) c4"6oz177011H1s Hz Hzh#zH H6 Hz 2Hz il 2 Hz (3) c4"6oz 1770 11 H1s Hz Hzh #zH H6 Hz 2Hz il 2 Hz... 5 answers Question 13 (1 point) Saved Ihave a jar with 6 red; 3 purple and 5 black marbles. If draw THREE times WITH replacement; what is the probabillty every draw Is red?079055009None of these1.286 Question 13 (1 point) Saved Ihave a jar with 6 red; 3 purple and 5 black marbles. If draw THREE times WITH replacement; what is the probabillty every draw Is red? 079 055 009 None of these 1.286... 5 answers 3.98 weeksb) 4.00 weeksC) 4.75 weeks4.61 weeks5.60 weeks 3.98 weeks b) 4.00 weeks C) 4.75 weeks 4.61 weeks 5.60 weeks... 5 answers Set up an integral for the volume of the solid obtained by rotating the region bounded by y=x?_ +18 and Y = 9x about the x ~ axis_OA V= d(x_ 9x+18)dxB. V= d(x4_ 81x2+18 JaxC V= d( 45.2_x"_ 324 |dxD V= d(81x2 _ x' _ 18}dxOE V = n(x4_45x2 +324 Jdx Set up an integral for the volume of the solid obtained by rotating the region bounded by y=x?_ +18 and Y = 9x about the x ~ axis_ OA V= d(x_ 9x+18)dx B. V= d(x4_ 81x2+18 Jax C V= d( 45.2_x"_ 324 |dx D V= d(81x2 _ x' _ 18}dx OE V = n(x4_45x2 +324 Jdx... 3 answers [QB] Conduct one-Way ANOVA t0 delermine thc level satisfaction with Nissin Baop Noddlc Soup's price (NissinRaice) diffcrent betwccn diffcrent user groups (UsEtGIQuD:) 90x confidence Ievel (15 points)(08-1) State the null and alternative hypotheses for one-Way ANOVA Please be complete need state what thc diffcrence to earn full points -(08-2) Copy and paste the tables produced by SPSS, including Descnptives ANOVA andDuncan'$ tablePosterior Distribution Characterizalion for One-Sample
[QB] Conduct one-Way ANOVA t0 delermine thc level satisfaction with Nissin Baop Noddlc Soup's price (NissinRaice) diffcrent betwccn diffcrent user groups (UsEtGIQuD:) 90x confidence Ievel (15 points) (08-1) State the null and alternative hypotheses for one-Way ANOVA Please be complete need sta...
A 4.5 1 111 Wmldl peiceicy Ktno PCPU 4u01 indicaice dthal 0 Loumu oncreaseng 1Q!Q M
a 4.5 1 1 1 1 Wmldl peiceicy Ktno PCPU 4u01 indicaice dthal 0 Loumu oncreaseng 1 Q!Q M...
Patt HLnanealcohok M Et(cecieiinjHnt Ilie akcoholsArondeALMethulineg HinlloCH-CI,CICH,OH CHCMOH CCHCHCHCH OH CHCHCHOH
Patt H Lnane alcohok M Et( cecieiinj Hnt Ilie akcohols ArondeAL Methulineg Hinllo CH-CI,CICH,OH CHCMOH CCHCHCHCH OH CHCHCHOH...
This question has several parts thar must be completed sequentially. If you skip pan of the question, YOu will not receive any points for the skipped part; and YOUTutorial ExerciseSome colleges now allow students to pay their tuition using credit card, report includes data from survey of 100 public 4-year colleges 100 private 4-year colleges and 100 community colleges The accompanying table gives information on credit card acceptance for each of these samples of colleges_Accepts Credit Does Not
This question has several parts thar must be completed sequentially. If you skip pan of the question, YOu will not receive any points for the skipped part; and YOU Tutorial Exercise Some colleges now allow students to pay their tuition using credit card, report includes data from survey of 100 publi...
Construct a scatterplot, and find the value of the linear correlation coefficient $r$. Also find the P-value or the critical values of $r$ from Table $A-5 .$ Use a significance level of $alpha=0.05 .$ Determine whether there is sufficient evidence to support a claim of a linear correlation between the two variables. (Save your work because the same data sets will be used in Section $10-2$ exercises.)Use the paired foot length and height data from the preceding exercise. Is there sufficient evide
Construct a scatterplot, and find the value of the linear correlation coefficient $r$. Also find the P-value or the critical values of $r$ from Table $A-5 .$ Use a significance level of $alpha=0.05 .$ Determine whether there is sufficient evidence to support a claim of a linear correlation between t...
Tnnathe followiug Chi Square problcms Ifthere Wcte 2O0O secds #puld = expcct L00O white; Ibooo yellow were [ [00 whlte 900 ycllow Defermine the cli squarc vlugsudent did 4 coss uslng fruit flies in which she expected 4 9 } 3 1 phenorypic Tfna She rn A chi square test On her data and found that Lhc chi tquarc valuc us Does her datz %igniticantly deviate from Ile predicted ration? ExplainBenclics student performed cioss which he expected a J Futio Herin # squere (est on his data and foutid value 0
Tnna the followiug Chi Square problcms Ifthere Wcte 2O0O secds #puld = expcct L00O white; Ibooo yellow were [ [00 whlte 900 ycllow Defermine the cli squarc vlug sudent did 4 coss uslng fruit flies in which she expected 4 9 } 3 1 phenorypic Tfna She rn A chi square test On her data and found that Lhc...
Solve for the specified variable in each formula or literal equation.$$A x+B y=C ext { for } y$$
Solve for the specified variable in each formula or literal equation. $$A x+B y=C \text { for } y$$...
Evaluate The curlothe 2 F the curl of with x integers: 22,v2 Py "N 2 1 "d N My
Evaluate The curlothe 2 F the curl of with x integers: 22,v2 Py "N 2 1 "d N My...
Use algebra to find the point of intersection of the two lines whose equations are provided. Use Example 7 as a guide.$2 x+y=8$ and $3 x-y=7$
Use algebra to find the point of intersection of the two lines whose equations are provided. Use Example 7 as a guide. $2 x+y=8$ and $3 x-y=7$...
1) If X is a Poisson random variable with parameter k, then E[X2] = A) k2 B) k C) 1/k D) k2+k E) none of the above
1) If X is a Poisson random variable with parameter k, then E[X2] = A) k2 B) k C) 1/k D) k2+k E) none of the above...
Find the indicated probability: The table below describes the smoking habits of a group of asthma sufferers: Occasional Regular Healy" Nonsoker moker moker smoker Total Ven 318 36 73 32 4459 Women 372 46 73 50 541 Total 690 82 146 82 1000 If one of the 1000 people is randomly selected, find the probability that the person is a man or a heavy smoker. 0.509 0.477 0.541 0.390
Find the indicated probability: The table below describes the smoking habits of a group of asthma sufferers: Occasional Regular Healy" Nonsoker moker moker smoker Total Ven 318 36 73 32 4459 Women 372 46 73 50 541 Total 690 82 146 82 1000 If one of the 1000 people is randomly selected, find the...