A One-Sample T Test of H₀:  = 125

question 91

Multiple Choice

A one-sample t test of H₀:  = 125 against H_a:  > 125 is carried out based on sample data from a Normal population.The SRS of size n = 15 produced a mean of = 132.8 and s = 12.6.What is the value of the appropriate test statistic?

• A)z = 2.40
• B)t = 2.32
• C)t = 2.40
• D)z = 2.32
• E)t = 1.76

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