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In order to determine the average weight of watermelons at a supermarket, a sample of 31 watermelons was weighed. The average weight was found to be 7.9 kg with a standard deviation of 2.1 kg. Determine a 90% confidence interval for the mean weight of watermelons in the supermarket. State the lower limit only (in kg) correct to two decimal places.

In order to determine the average weight of watermelons at a supermarket, a sample of 31 watermelons was weighed. The average weight was found to be 7.9 kg with a standard deviation of 2.1 kg. Determine a 90% confidence interval for the mean weight of watermelons in the supermarket. State the lower limit only (in kg) correct to two decimal places.

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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In order to determine the average weight of watermelons at a supermarket, a sample of 31 watermelons was weighed. The average weight was found to be 7.9 kg with a standard deviation of 2.1 kg. Determine a 90% confidence interval for the mean weight of watermelons in the supermarket. State the lower limit only (in kg) correct to two decimal places. 2.
Transcribed Image Text:In order to determine the average weight of watermelons at a supermarket, a sample of 31 watermelons was weighed. The average weight was found to be 7.9 kg with a standard deviation of 2.1 kg. Determine a 90% confidence interval for the mean weight of watermelons in the supermarket. State the lower limit only (in kg) correct to two decimal places. 2.
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