Do all parts please. Swim Lessons - U...b. Is 15 pounds a plausible mean weight change in thepopulation of freshman women? Answer by construct-ing a 95% confidence interval for the population meanchange in weight or conducting a significance test ofthe hypothesis that the mean weight change in the pop-ulation equals 15. Interpret.c. What assumptions are necessary for the inference inpart b?10.56 Internet book prices Anna's project for her introduc-TECH tory statistics course was to compare the selling pricesof textbooks at two Internet bookstores. She first took arandom sample of 10 textbooks used that term in coursesat her college, based on the list of texts compiled by thecollege bookstore. The prices of those textbooks at the twoInternet sites wereSite A: $115, $79, $43, $140, $99, $30, $80, $99, $119, $69Site B: $110, $79, $40, $129, $99, $30, $69, $99, $109, $66a. Are these independent samples or dependent samples?Justify your answer.b. Find the mean for each sample. Find the mean of thedifference scores. Compare and interpret.c. Using software or a calculator, construct a 90%confidence interval comparing the population meanprices of all textbooks used that term at her college.Interpret.10.57 Comparing book prices 2 For the data in the previousTECH exercise, use software or a calculator to perform a sig-nificance test comparing the population mean prices.Show all steps of the test and indicate whether you wouldconclude that the mean price is lower at one of the twoInternet bookstores.10.58 Lung capacity revisited Refer to Exercise 10.34 about497MacBook ProMicrosoft Office H...Chapter 10: Comparing Two Groups6 Witness Kim Kard...canvas 6 Overleaf, OnlineIncorra. Estisultsb. Soft0.0210.60 Treat juto a samMatche.TRYthe numwas hantransferwas whea. Are tor deb. Estimadultc. Test trearrecourtinterp:Adult CoRearrestNo RearrSource: Dat10.61 Change co-TRY an advertisfor Sanka eSTA 271 Assignment 5References Tell meEDictate Sensitivity Editorb. Complete part (c).d. Using only the interval calculated in part (c), can you conclude that the mean textbook priceis lower at one of the stores? Explain why or why not.e. What significance level did you use in part (d)?f. Use software to construct an appropriate plot to estimate the population distribution and pastebelow. Is there any reason to believe that statistical inferences will be unreliable for these data?Explain why or why not.Page 2 of 3200 words 1XFocuswwwNO TRAINING PRICKAMAutoSave OFFInsert Draw DesignA-E(6FontParagraphStyles3. Refer to Exercise 10.56, p.497.a. Complete part (a).b. Complete part (b).LayoutAShareCommer+ 1149X

Question

Do all parts please. Swim Lessons - U...b. Is 15 pounds a plausible mean weight change in thepopulation of freshman women? Answer by construct-ing a 95% confidence interval for the population meanchange in weight or conducting a significance test ofthe hypothesis that the mean weight change in the pop-ulation equals 15. Interpret.c. What assumptions are necessary for the inference inpart b?10.56 Internet book prices Anna's project for her introduc-TECH tory statistics course was to compare the selling pricesof textbooks at two Internet bookstores. She first took arandom sample of 10 textbooks used that term in coursesat her college, based on the list of texts compiled by thecollege bookstore. The prices of those textbooks at the twoInternet sites wereSite A: $115, $79, $43, $140, $99, $30, $80, $99, $119, $69Site B: $110, $79, $40, $129, $99, $30, $69, $99, $109, $66a. Are these independent samples or dependent samples?Justify your answer.b. Find the mean for each sample. Find the mean of thedifference scores. Compare and interpret.c. Using software or a calculator, construct a 90%confidence interval comparing the population meanprices of all textbooks used that term at her college.Interpret.10.57 Comparing book prices 2 For the data in the previousTECH exercise, use software or a calculator to perform a sig-nificance test comparing the population mean prices.Show all steps of the test and indicate whether you wouldconclude that the mean price is lower at one of the twoInternet bookstores.10.58 Lung capacity revisited Refer to Exercise 10.34 about497MacBook ProMicrosoft Office H...Chapter 10: Comparing Two Groups6 Witness Kim Kard...canvas 6 Overleaf, OnlineIncorra. Estisultsb. Soft0.0210.60 Treat juto a samMatche.TRYthe numwas hantransferwas whea. Are tor deb. Estimadultc. Test trearrecourtinterp:Adult CoRearrestNo RearrSource: Dat10.61 Change co-TRY an advertisfor Sanka eSTA 271 Assignment 5References >>Tell meEDictate Sensitivity Editorb. Complete part (c).d. Using only the interval calculated in part (c), can you conclude that the mean textbook priceis lower at one of the stores? Explain why or why not.e. What significance level did you use in part (d)?f. Use software to construct an appropriate plot to estimate the population distribution and pastebelow. Is there any reason to believe that statistical inferences will be unreliable for these data?Explain why or why not.Page 2 of 3200 words 1XFocuswwwNO TRAINING PRICKAMAutoSave OFFInsert Draw DesignA-E(6FontParagraphStyles3. Refer to Exercise 10.56, p.497.a. Complete part (a).b. Complete part (b).LayoutAShareCommer+ 1149X

Accepted Answer

As there are more than 3 questions as per the company guidelines we are supposed to do the first…