YA Assignment # 5 - STAT x Course Hero * *Dashboard * *Course Hero * *Course Hero x *Course Hero x Course Hero * *Dashboard x Dashboard X + - C webassign.net/web/Student/Assignment-Responses/last?dep=30075338 J Update An advertisement for a popular supermarket chain claims that it has had consistently lower prices than four other full-service supermarkets. As part of a survey conducted by an "independent market basket price-checking company," the average weekly total, based on the prices (in $) of approximately 95 items, is given for two different supermarket chains recorded during 4 consecutive weeks in a particular month. Week Advertiser ($) Competitor ($) 254.28 256.09 240.60 255.74 W N 232.00 255.09 234.23 261.14 (a) Is there a significant difference in the average prices for these two different supermarket chains? (Use a = 0.05. Round your answers to three decimal places.) 1-2. Null and alternative hypotheses: O Ho: My = 0 versus Hai Hd # 0 O Ho: My 0 O Ho: My = 0 versus Hai Hd 0 O Ho: Mg = 0 versus Hai Hd = 0 3. Test statistic: t = 4. Rejection region: If the test is one-tailed, enter NONE for the unused region. t> t 0.200 Type here to search 2'C Cloudy ~ 91 () ENG 7:52 PM 2022-11-28YA Assignment # 5 - STAT x Course Hero * *Dashboard * *Course Hero * *Course Hero x Course Hero x Course Hero x Dashboard x Dashboard X + 5. Conclusion: O Ho is rejected. There is sufficient evidence to indicate that the means are different. O Ho is rejected. There is insufficient evidence to indicate that the means are different. O Ho is not rejected. There is sufficient evidence to indicate that the means are different. O Ho is not rejected. There is insufficient evidence to indicate that the means are different. (b) What is the approximate p-value for the test conducted in part (a)? O p-value 0.200 (c) Construct a 99% confidence interval for the difference in the average prices for the two supermarket chains. (Round your answers to two decimal places.) $ to $ Interpret this interval. O Since 0 does not fall in the confidence interval, there is sufficient evidence to indicate that the means are different. O Since 0 falls in the confidence interval, there is sufficient evidence to indicate that the means are different. O Since 0 does not fall in the confidence interval, there is insufficient evidence to indicate that the means are different. O Since 0 falls in the confidence interval, there is insufficient evidence to indicate that the means are different. Need Help? Read It Submit Answer View Previous Question Question 8 of 14 View Next Question Type here to search 2'C Cloudy ~ 91 2() ENG 7:52 PM 2022-11-28