scrap metal dealer claims that the mean of his cash is 'no more than R80', but an Internal Revenue Service agent believes that the dealer is untruthful. The agent randomly selects a sample of 20 cash customers and find the mean purchase to be R91, with a variance of R441. What is The correct conclusion at 5% significance level if the test statistic value is 2,3425?
scrap metal dealer claims that the mean of his cash is 'no more than R80', but an Internal Revenue Service agent believes that the dealer is untruthful. The agent randomly selects a sample of 20 cash customers and find the mean purchase to be R91, with a variance of R441. What is The correct conclusion at 5% significance level if the test statistic value is 2,3425?
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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