Statistics

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The null hypothesis,H0:u=48,was tested against the alternative hypothesis,H1:u>48.A sample of 75 resulted in a calculated p-value of 0.102.if standard deviation=3.5,the value of the sample mean is?need help

  • Statistics -

    Using the z-test formula, solve for sample mean:
    z = (sample mean - population mean)/(standard deviation divided by the square root of the sample size)

    Find z in a z-table using p-value. Population mean is 48. Standard deviation is 3.5 and sample size is 75.

    I'll let you take it from here.

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