Henry Hill
01/17/2023 · Elementary School
An analyst suggests that the average daily temperature in a specific region is 75 degrees Fahrenheit. Data from a sample of 40 days shows an average daily temperature of 76.3 degrees Fahrenheit, with a population standard deviation of 1. . degrees at a significance level of 0.05 . Is there sufficient evidence to challenge the analyst's claim?
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The test statistic is 8.22, and the critical value is 1.96. Since the test statistic is greater than the critical value, there is sufficient evidence to challenge the analyst's claim.
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