A college wishes to test the claim that its graduates have an average monthly sa

Question

A college wishes to test the claim that its graduates have an average monthly salary of more than R30 000 per month. A random survey of ten graduates gives the following as the monthly salaries (In thousands of South African Rands):

41 30 29 25 39 41 27 26 31 34

Test the claim at a 5% level of significance:

a. State the null and alternative hypothesis.

b. State and calculate the appropriate test statistic.

c. Determine the critical value of the test.

d. State whether or not you reject the null hypothesis.

e. Draw an appropriate conclusion

Explanation / Answer

answer:

a.

b

c

d

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