Look at this hypothetical sample data. Use a t-test to determine whether the fol

Question

Look at this hypothetical sample data. Use a t-test to determine whether the following null hypothesis is correct: the observed mean in your sample data is not statistically significant from the population mean of 5.5. Use the two-tailed test at the alpha level of .05 when answering the question. Do you accept or reject the null hypothesis?

A. Accept the null hypothesis.

B. Reject the null hypothesis.

C. Accept the alternative hypothesis.

D. Not enough evidence to accept the null hypothesis.

Explanation / Answer

Sample standard deviation is 2.64

Mean = 4..833

P(Z < = |5.5 - 4.833|/2.64) = P(-0.25<Z<0.25) =0.1974 >0.05

Hence we accept the null hypothesis that the sample mean is singificant from population mean

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