Question

Asked Nov 14, 2019

1 views

random

sample

of 100

observations

is taken

from a

normal

population

with

a

standard

deviation

of 10

and

the

sample mean

is 40. What is the

value

of Lower

Confidence

Limit

at 95%

CI.

Step 1

It is given that the population standard deviation is 10 and the sample mean is 40. The level of confidence is 0.95.

Step 2

The 95% confidence interval is obtained as follows:

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