statistic

19. The average annual expenditure for health care by men is $1,096 with a standard deviation of $205 and women is $1,234 with a standard deviation of $310. A random sample of 10 men and 10 women were selected. Test to see if the mean expenditure for men is different then the mean expenditure for women.

a. State the null and research hypothesis

b. Set the level of risk

c. Select the appropriate test

d. Compute the obtained value.

e. Find the critical value

f. Compare the obtained value and the critical value.

g. State your decision.

h. Write the result