Question
The high temperatures (in degrees Fahrenheit) of a random sample of 7 small towns are: 98.4...
The high temperatures (in degrees Fahrenheit) of a random sample of 7 small towns are:
| 98.4 |
| 99.5 |
| 99.1 |
| 97.3 |
| 99.6 |
| 97.6 |
| 97.1 |
Assume high temperatures are normally distributed. Based on this
data, find the 99% confidence interval of the mean high temperature
of towns. Enter your answer as an open-interval
(i.e., parentheses) accurate to two decimal places
(because the sample data are reported accurate to one decimal
place).
99% C.I. =
Answer should be obtained without any preliminary rounding.
However, the critical value may be rounded to 3 decimal places.
Homework Answers
Answer #1
 |
 |
 |
| 98.4 | 0.03 | 0.0009 |
| 99.5 | 1.13 | 1.2769 |
| 99.1 | 0.73 | 0.5329 |
| 97.3 | -1.07 | 1.1449 |
| 99.6 | 1.23 | 1.5129 |
| 97.6 | -0.77 | 0.5929 |
| 97.1 | -1.27 | 1.6129 |
 |
 |
Refer t-table or use excel function "=T.INV.2T(0.01,6)" to find the critical value of t.
NOTE: Include parentheses (open brackets) in the answer
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