In a recent survey, a random sample of 199 office managers were asked about overtime, and 76 reported that they regularly work overtime each week. What value of z should be used to calculate a confidence interval with a 98% confidence level

Question

Mathematics

Jaiden

1 December, 12:13

In a recent survey, a random sample of 199 office managers were asked about overtime, and 76 reported that they regularly work overtime each week. What value of z should be used to calculate a confidence interval with a 98% confidence level

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Answers (1)

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Kathryn Wilkinson · Answer 1

2.326

Step-by-step explanation:

They are only asking which z-score should you use. To determine find the confidence interval which is 98% or. 98.

Subtract this number by 1 and divide by 2.

1-.98=.02/2=.01

Find the correlating z-score for z. 01 on the z-score chart which is 2.326