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In a random sample of four mobile devices, the mean repair cost was $90.00 and the standard deviation was $11.50. Assume the population is normally dist. and construct a 95% confidence interval for the population mean. Interpret the results. The 95% confidence interval for the population mean u is O). (Round to two decimal places as needed.) The margin of error is $ (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below. O A. With 95% confidence, it can be said that the repair cost is between the bounds of the confidence interval. B. It can be said that 95% of mobile devices have a repair cost between the bounds of the confidence interval. C. If a large sample of mobile devices are taken approximately 95% of them will have repair costs between the bounds of the confidence interval. O D. With 95% confidence, it can be said that the population mean repair cost is between the bounds of the confidence interval.

In a random sample of four mobile devices, the mean repair cost was $90.00 and the standard deviation was $11.50. Assume the population is normally dist. and construct a 95% confidence interval for the population mean. Interpret the results. The 95% confidence interval for the population mean u is O). (Round to two decimal places as needed.) The margin of error is $ (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below. O A. With 95% confidence, it can be said that the repair cost is between the bounds of the confidence interval. B. It can be said that 95% of mobile devices have a repair cost between the bounds of the confidence interval. C. If a large sample of mobile devices are taken approximately 95% of them will have repair costs between the bounds of the confidence interval. O D. With 95% confidence, it can be said that the population mean repair cost is between the bounds of the confidence interval.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In a random sample of four mobile devices, the mean repair cost was $90.00 and the standard deviation was $11.50. Assume the population is normally distr and construct a 95% confidence interval for the population mean. Interpret the results. The 95% confidence interval for the population mean u is OD. (Round to two decimal places as needed.) The margin of error is $ (Round to two decimal places as needed.) interpret the results. Choose the correct answer below. O A. With 95% confidence, it can be said that the repair cost is between the bounds of the confidence interval. B. It can be said that 95% of mobile devices have a repair cost between the bounds of the confidence interval. C. If a large sample of mobile devices are taken approximately 95% of them will have repair costs between the bounds of the confidence interval. D. With 95% confidence, it can be said that the population mean repair cost is between the bounds of the confidence interval.
Transcribed Image Text:In a random sample of four mobile devices, the mean repair cost was $90.00 and the standard deviation was $11.50. Assume the population is normally distr and construct a 95% confidence interval for the population mean. Interpret the results. The 95% confidence interval for the population mean u is OD. (Round to two decimal places as needed.) The margin of error is $ (Round to two decimal places as needed.) interpret the results. Choose the correct answer below. O A. With 95% confidence, it can be said that the repair cost is between the bounds of the confidence interval. B. It can be said that 95% of mobile devices have a repair cost between the bounds of the confidence interval. C. If a large sample of mobile devices are taken approximately 95% of them will have repair costs between the bounds of the confidence interval. D. With 95% confidence, it can be said that the population mean repair cost is between the bounds of the confidence interval.
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