Question

Part 3) URGENT CARE (6 pts)

        You recently started working as a nurse manager at a larger local urgent care facility. Because the center is so new (and a bit fancier than most) many patients come here expecting a bit of a wait before they can be seen. Out of curiosity, on a particularly busy day you write down how many minutes a random sample of patients has to wait before being seen by one of the medical staff. Using a significance level of 20%, test whether the average wait time is less than 15 minutes.

12	10	15	17	15	18	15	15
10	15	12	10	12	19	10	14
10	17	13	15	23	12	15	20
7	10	16	14	14	14	18	13

1. What is the name of the type of hypothesis test required here?                 

Is this a left-tailed, right-tailed, or two-tailed test?

2. State AND verify all assumptions required for this test.

            [HINT: this test has two assumptions.]

3. State the null and alternate hypotheses for this test: (use correct symbols and format!)

Null hypothesis
               Alternate hypothesis

4. Run the correct test in Excel or on the TI-84 calculator and provide the information below. For each statistic provide the correct symbol and numeric value (round answers to 3 decimal places).

              

Degrees of Freedom

Test Statistic

Critical Value

p-value

              

5. State your statistical decision for this test and justify it using the statistics above.

6. Interpret your decision within the context of the problem: what is your conclusion?

Answer 1