A professor in the school of business at a certain university wants to investigate the claim that the prices of new textbooks in the campus store are higher than a competing national online bookstore by more than 50 cents. The professor randomly chooses required texts for 12 business school courses. Use a = 0.05. The data is given in the table below. Book Campus Store Online Store A 180.63 180.19 B 130.44 129.61 с 202.84 201.29 D 201.65 200.6 E 232.84 232.02 II F 154.23 157.14 G 112.07 113.37 H 132.81 132.08 152.38 151.42 J 115.89 114.27 K 220.18 221.43 L 173.65 173.36 Download.csv file (a) Let X₁ denote the price of books at the campus store, and X be the price of books at the online store, also let XD = XA-XB. Choose the correct statistical hypotheses. O A. Ho HD > 0.5, HA: HD <0.5 : B. Ho: D=0.5 OC. Ho: D=0.5, O D. Ho: D = 0.5, HA HD > 0.5 : HA: HD <0.5 HAD 0.5 = OE. Ho Hampus Honline HA: campus online OF. Ho campus online, HA: campus #Pontine O G. Hy : campus = online HA oampus > Hontine : Ο H. Ho : famous = fonliney HA: fcampus < Mouline o L. Họ : Ñoampnus = Ñonline, Ha: Acampus > Åonline O J. Ho D 0.5 HA:D > 0.5 OK. Ho campus Honlines HA: Hoampus < Honline OLH₂ HD > 0.5, HA:D <0.5 : (b) Carry out the appropriate statistical test and find the P-value, to at least three decimal places. P= (c) Based on the above calculations, we should not reject the null hypothesis. (d) Using the technology available to you, create the most appropriate graph(s) to check the assumption(s) that need to be satisfied for your inferences in (b) and (c) to be valid. What statement below aligns with your findings? OA. The prices charged at the campus bookstore are not normally distributed. OB. The differences in the price of a textbook at the campus bookstore and the price of the textbook at the online store are normally distributed. OC. The prices charged at the campus bookstore are normally distributed. O D. The differences in the price of a textbook at the campus bookstore and the price of the textbook at the online store are not normally distributed. OE. The prices charged at the online bookstore are normally distributed.
A professor in the school of business at a certain university wants to investigate the claim that the prices of new textbooks in the campus store are higher than a competing national online bookstore by more than 50 cents. The professor randomly chooses required texts for 12 business school courses. Use a = 0.05. The data is given in the table below. Book Campus Store Online Store A 180.63 180.19 B 130.44 129.61 с 202.84 201.29 D 201.65 200.6 E 232.84 232.02 II F 154.23 157.14 G 112.07 113.37 H 132.81 132.08 152.38 151.42 J 115.89 114.27 K 220.18 221.43 L 173.65 173.36 Download.csv file (a) Let X₁ denote the price of books at the campus store, and X be the price of books at the online store, also let XD = XA-XB. Choose the correct statistical hypotheses. O A. Ho HD > 0.5, HA: HD <0.5 : B. Ho: D=0.5 OC. Ho: D=0.5, O D. Ho: D = 0.5, HA HD > 0.5 : HA: HD <0.5 HAD 0.5 = OE. Ho Hampus Honline HA: campus online OF. Ho campus online, HA: campus #Pontine O G. Hy : campus = online HA oampus > Hontine : Ο H. Ho : famous = fonliney HA: fcampus < Mouline o L. Họ : Ñoampnus = Ñonline, Ha: Acampus > Åonline O J. Ho D 0.5 HA:D > 0.5 OK. Ho campus Honlines HA: Hoampus < Honline OLH₂ HD > 0.5, HA:D <0.5 : (b) Carry out the appropriate statistical test and find the P-value, to at least three decimal places. P= (c) Based on the above calculations, we should not reject the null hypothesis. (d) Using the technology available to you, create the most appropriate graph(s) to check the assumption(s) that need to be satisfied for your inferences in (b) and (c) to be valid. What statement below aligns with your findings? OA. The prices charged at the campus bookstore are not normally distributed. OB. The differences in the price of a textbook at the campus bookstore and the price of the textbook at the online store are normally distributed. OC. The prices charged at the campus bookstore are normally distributed. O D. The differences in the price of a textbook at the campus bookstore and the price of the textbook at the online store are not normally distributed. OE. The prices charged at the online bookstore are normally distributed.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 22PFA
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