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t Hypothesis Test for Population Mean Show that the mean age of all buyers is below...

t Hypothesis Test for Population Mean

Show that the mean age of all buyers is below 40. After collecting a random sample of 5 buyers you find a sample mean of 35 and the sample standard deviation of 8. Assume the distribution of age is normal. Test at a 10% significance level.

a. What is the alternative hypothesis?

b. What is the table value?

c. What is the rejection value?

d. What is the test statistic value?

e. What is your decision? choose 1

reject Ho / Do not reject Ho / Accept Ho

f. Conclusion? Choose 1 each

We can show that / We cannot show that

The sample mean / The population mean / the mean age of the 5 buyers / the mean age of all buyers

is greater than 40 / is below 40 / differs from 40 / equals 40

Math   Statistics-And-Probability   
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