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You want to buy a washing machine, and a salesperson tells you that the mea mean repair cost of 29 Model A washing machines is $211. Assume the popul machines is $216. Assume the population standard deviation is $25. At a = 0.C independent, and the populations are normally distributed. Complete parts (a) O A. The mean repair cost for Model A is greater than Model B. B. The mean repair costs for Model A and Model B are equal. O C. The mean repair cost for Model A is less than Model B. D. The mean repair costs for Model A and Model B are different. Let u, be the mean repair cost for Model A and let u, be the mean repair cos O B. Ho: H1 = H2 Hai H1 H2 O A. Ho: H1 < H2 O D. Ho: H1> H2 Ha: H1 SH2 O E. Ho: H1 #H2 Ha H1 = H2

You want to buy a washing machine, and a salesperson tells you that the mea mean repair cost of 29 Model A washing machines is $211. Assume the popul machines is $216. Assume the population standard deviation is $25. At a = 0.C independent, and the populations are normally distributed. Complete parts (a) O A. The mean repair cost for Model A is greater than Model B. B. The mean repair costs for Model A and Model B are equal. O C. The mean repair cost for Model A is less than Model B. D. The mean repair costs for Model A and Model B are different. Let u, be the mean repair cost for Model A and let u, be the mean repair cos O B. Ho: H1 = H2 Hai H1 H2 O A. Ho: H1 < H2 O D. Ho: H1> H2 Ha: H1 SH2 O E. Ho: H1 #H2 Ha H1 = H2

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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You want to buy a washing machine, and a salesperson tells you that the mean repair costs for Model A and Model B are equal. You research the repair costs. The mean repair cost of 29 Model A washing machines is $211. Assume the population standard deviation is $15. The mean repair cost of 26 Model B washing machines is $216. Assume the population standard deviation is $25. At a = 0.01, can you reject the salesperson's claim? Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e). O A The mean repair cost for Model A is greater than Model B B. The mean repair costs for Model A and Model B are equal. O C. The mean repair cost for Model A is less than Model B O D. The mean repair costs for Model A and Model B are different. Let u, be the mean repair cost for Model A and let u, be the mean repair cost for Model B. What are Ho and H,? O B. Ho: H1 =H2 Hai H1 # H2 O E. Ho: H1 # H2 OC. Ho: H1 SH2 Hai H1>H2 OF. Ho: H1ZH2 Ha: H1 <H2 O A. Ho: H1 <H2 Hgi H1 ZH2 O D. Ho: H1> H2 Hai H1 =H2
Transcribed Image Text:You want to buy a washing machine, and a salesperson tells you that the mean repair costs for Model A and Model B are equal. You research the repair costs. The mean repair cost of 29 Model A washing machines is $211. Assume the population standard deviation is $15. The mean repair cost of 26 Model B washing machines is $216. Assume the population standard deviation is $25. At a = 0.01, can you reject the salesperson's claim? Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e). O A The mean repair cost for Model A is greater than Model B B. The mean repair costs for Model A and Model B are equal. O C. The mean repair cost for Model A is less than Model B O D. The mean repair costs for Model A and Model B are different. Let u, be the mean repair cost for Model A and let u, be the mean repair cost for Model B. What are Ho and H,? O B. Ho: H1 =H2 Hai H1 # H2 O E. Ho: H1 # H2 OC. Ho: H1 SH2 Hai H1>H2 OF. Ho: H1ZH2 Ha: H1 <H2 O A. Ho: H1 <H2 Hgi H1 ZH2 O D. Ho: H1> H2 Hai H1 =H2
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