The owner of a cell phone store at Greenhills Shopping Centerwas not happy when he learned that the average numberof cell phones sold daily was only 8 cell phones. He hired anew seller and told him to tally the daily sales for 20 days.The following are the number of cell phones sold for the past20 days.9.9111212161012811171815141714Do the collected data present sufficient evidence to indicate thatthe average number of cell phones sold daily has increased? Use0.05 level of significance. Assume normality in the population.CSScanned with CamScanner

Name: The owner of a cell phone store at Greenhills Shopping Centerwas not
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The owner of a cell phone store at Greenhills Shopping Centerwas not happy when he learned that the average numberof cell phones sold daily was only 8 cell phones. He hired anew seller and told him to tally the daily sales for 20 days.The following

From the provided information, Sample size (n) = 20 The hypotheses are as follow: H0: µ = 8 H1: µ…

Math

Statistics

The owner of a cell phone store at Greenhills Shopping Center was not happy when he learned that the average number of cell phones sold daily was only 8 cell phones. He hired a new seller and told him to tally the daily sales for 20 days. The following are the number of cell phones sold for the past 20 days. 9 9 9 8 9 11 12 12 16 10 12 8 11 17 18 15 14 17 14 Do the collected data present sufficient evidence to indicate that the average number of cell phones sold daily has increased? Use 0.05 level of significance. Assume normality in the population.