The weights of four randomly and independently selected bags of potatoes labeled 20.0 pounds were found to be 20.9, 21.5, 20.5, and 21.2 pounds. Assume Normality. Answer parts (a) and (b) below. a. Find a 95% confidence interval for the mean weight of all bags of potatoes. (Type integers or decimals rounded to the nearest hundredth as needed. Use ascending order.) b. b. Does the interval capture 20.0 pounds? Is there enough evidence to reject a mean weight of 20.0 pounds?
The weights of four randomly and independently selected bags of potatoes labeled 20.0 pounds were found to be 20.9, 21.5, 20.5, and 21.2 pounds. Assume Normality. Answer parts (a) and (b) below. a. Find a 95% confidence interval for the mean weight of all bags of potatoes. (Type integers or decimals rounded to the nearest hundredth as needed. Use ascending order.) b. b. Does the interval capture 20.0 pounds? Is there enough evidence to reject a mean weight of 20.0 pounds?
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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The weights of four randomly and independently selected bags of potatoes labeled 20.0 pounds were found to be 20.9, 21.5, 20.5, and 21.2 pounds. Assume Normality. Answer parts (a) and (b) below.
a. Find a 95% confidence interval for the mean weight of all bags of potatoes. (Type integers or decimals rounded to the nearest hundredth as needed. Use ascending order.)
b. b. Does the interval capture 20.0 pounds? Is there enough evidence to reject a mean weight of 20.0 pounds?
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