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Hypothesis testing of single mean.

Someone claims that the mean age of residents of a certain neighbourhood is 50, but you suspect that the mean age is actually higher than that. A sample of 36 residents reveals a mean age of 53, with a sample standard deviation of 15.

a. State the null and alternative hypotheses.

b. Compute the value of the test statistic.

c. Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?

d. What conclusion do you come to? 

Assuming this time that your data came from a sample of only 16 residents.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920249

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