This question refers to Activity 4-5 in the workbook. It won't make sense unless you follow along in the workbook. Even though it doe
1. a. We should use a
b. We
use a t procedure.
2. a. We should use a
b. We
use a t procedure.
c. Results will be
if we use a z procedure rather than t.
Questions 3 and 4: One of these questions is answered with a confidence interval, one is answered with a hypothesis test. Since the w
figured that out, you can enter your answers in the appropriate places below.
Q3 Data: 3, 2.5, 1, 0, 0.5, -1, 2, -2, 5, 6, -5, 1, -1, 0, -2, -3, 2, 0, 1, 0.5, 1.5
Q4 Data: 0, 0, 0, 0, 1000, 1000, 1000, 2000, 2500, 3000, 3500, 3500, 4000, 4000, 4000, 4500, 5000, 5000, 5500, 6000, 65
30000, 33000, 37000
Confidence interval (the confidence level is not specified in the workbook, calculate a 95% CI):
) (Round to 1 decimal place)
Hypothesis test:
t=
(Round to 2 decimal places)
p =
(Round to 4 decimal places) The