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A psychologists wants to know if black mothers' self-esteem mean score is higher than their community...

A psychologists wants to know if black mothers' self-esteem mean score is higher than their community average of 10, with standard deviation equal to 4. A sample of thirteen black mothers were selected at random and their self-esteem scores are recorded below:

15, 13, 5, 9. 10. ,15. 14. 15. 9. 12. 13. 12 14.

a. Calculate the mean self-esteem score for the sample (3)
b. State the alternative and null hypotheses (2)
c. State the hypothesis test you will use to investigate the problem (1) c. Use the 6-steps hypothesis test to answer the question

Math   Statistics-And-Probability   
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