A report stated that on average a woman visits her physician 5.8 times a year. A researcher randomly selects 20 women and obtained these data:

3 2 1 3 7 2 9 4 6 6

8 0 5 6 4 2 1 3 4 1

a) At =.05 can it be concluded that the average is 5.8 per year?

Data:

n=20

= 3.85 times

s = 2.519 times

b)Construct a 2-tailed 95% C.I.E of . The upper limit of the confidence interval is

When doing a test, steps to be covered:

1. state the hypothesis and identify the claim
2. find the critical value from the table
3. compute the test value
4. make the decision to reject or not the null hypothesis

DO NOT PERFORM A p TEST or use a statistics software.