The weights of a sample of n = 8 college men will be used to create...
The weights of a sample of n = 8 college men will be used to create a 95% confidence interval for the mean weight of all college men. What is the correct t* multiplier involved in calculating the interval?
| A. |
2.365 |
|
| B. |
2.306 |
|
| C. |
1.895 |
|
| D. |
1.96 |
|
| E. |
2.00 |
Homework Answers
solution:
Degrees of freedom = df = n - 1 = 8 - 1 = 7
At 95% confidence level the t is ,
= 1 - 95% = 1 - 0.95 = 0.05
/
2= 0.05 / 2 = 0.025
t
/2,df = t0.025,7 =2.365 ( using student t
table)
correct option a
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