The average amount of rainfall during the summer months is 12.52 inches. To test if it is true, a researcher in PAG-ASA selects a random sample of 10 provinces and finds that the average amount of rainfall last year was 8.42 inches with a standard deviation of 2.3 inches. At 0.01 level of significance, can it be concluded that the mean rainfall last year was below 12.52 inches?
The average amount of rainfall during the summer months is 12.52 inches. To test if it is true, a researcher in PAG-ASA selects a random sample of 10 provinces and finds that the average amount of rainfall last year was 8.42 inches with a standard deviation of 2.3 inches. At 0.01 level of significance, can it be concluded that the mean rainfall last year was below 12.52 inches?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 7PPS
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