Apsychologist estimates the standard deviation of a driver's reaction time to be 0.05 seconds. how large a sample of measurements must be taken to derive a confidence interval for the mean with a margin of error at most 0.01 second, and confidence level 95%?

97

Step-by-step explanation:

The formula to find the sample size:-

, where = prior standard deviation.,   z^*= Critical value corresponds to the confidence level and E is margin of error .

Given : A psychologist estimates the standard deviation of a driver's reaction time to be 0.05 seconds.

i.e.

E= 0.01

Critical value for 95% confidence interval = 1.96

Then, the required sample size will be

 [Round to the nest integer.]

Hence, the required minimum sample size = 97

answer: get jesus in your life

step-by-step explanation:

step-by-step explanation:

the answer is 128