Question

Suppose the population variance is 25, an SRS of n=100 is obtained, and the confidence level is chosen to be 98%. The margin of error for estimating a mean is given by: O 5.825 O 3.2 O 1.165. O 0.1165.

Name: suppose the population variance is 25 an srs of n100 is obtained and the confidence level is chosen to be 98 the margin of error for estimating a mean is given by o 5825 o 32 o 1165 o 01165 39293
Uploaded: 2022-06-15T12:09:13-08:00
Duration: 1 min 18 s
Channel: Shaiju T
Description: suppose the population variance is 25 an srs of n100 is obtained and the confidence level is chosen to be 98 the margin of error for estimating a mean is given by o 5825 o 32 o 1165 o 01165 39293

          Suppose the population variance is 25, an SRS of n=100 is obtained, and the confidence level is chosen to be 98%. The margin of error for estimating a mean is given by:
O 5.825
O 3.2
O 1.165.
O 0.1165.

suppose the population variance is 25 an srs of n100 is obtained and the confidence level is chosen to be 98 the margin of error for estimating a mean is given by o 5825 o 32 o 1165 o 01165 39293

Added by Karen B.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Shaiju T

06/15/2022

Step 1

For a 98% confidence level, the alpha level $\alpha = 1 - 0.98 = 0.02$. We need to find the z-score such that the area to its left is $1 - \alpha/2 = 1 - 0.02/2 = 1 - 0.01 = 0.99$. Using a standard normal distribution table or calculator, the z-score for an area Show more…

Show all steps

Thanks for your feedback!

Suppose the population variance is 25, an SRS of n=100 is obtained, and the confidence level is chosen to be 98%. The margin of error for estimating a mean is given by: O 5.825 O 3.2 O 1.165. O 0.1165.