Suppose you are a researcher in a hospital. You are experimenting with a new tranquilizer. You collect data from a random sample of 11 patients. The period of effectiveness of the tranquilizer for each patient (in hours) is as follows: Hours 2.5 2.5 2.9 3 2.2 2.4 2.7 2.5 2.4 2.3 2.6 1.) Construct a 99% confidence interval for the population mean length of time. (Round upper and lower bounds to 2 decimal places.) What does it mean to be "99% confident" in this problem? a) There is a 99% chance that the confidence interval contains the sample mean time. b) 99% of all times will fall within this interval. c) The confidence interval contains 99% of all sample times. d) 99% of all confidence intervals found using this same sampling technique will contain the population mean time. 3.) Suppose that the company releases a statement that the mean time for all patients is 2 hours. Is this possible?
Suppose you are a researcher in a hospital. You are experimenting with a new tranquilizer. You collect data from a random sample of 11 patients. The period of effectiveness of the tranquilizer for each patient (in hours) is as follows:
| Hours |
|---|
| 2.5 |
| 2.5 |
| 2.9 |
| 3 |
| 2.2 |
| 2.4 |
| 2.7 |
| 2.5 |
| 2.4 |
| 2.3 |
| 2.6 |
1.) Construct a 99% confidence interval for the population
What does it mean to be "99% confident" in this problem?
a) There is a 99% chance that the confidence interval contains the sample mean time.
b) 99% of all times will fall within this interval.
c) The confidence interval contains 99% of all sample times.
d) 99% of all confidence intervals found using this same sampling technique will contain the population mean time.
3.) Suppose that the company releases a statement that the mean time for all patients is 2 hours. Is this possible?
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