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The table t-value associated with 8 degrees of freedom and used to calculate a 99% confidence...

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Question

Basic Math

The table t-value associated with 8 degrees of freedom and usedto calculate a 99% confidence interval is _______.

Select one:

a. 3.355

b. 1.860

c. 1.397

d. 2.896

Cameron Sinclair, Information Services Manager with GlobalFinancial Service (GFS), is studying employee use of GFS email fornon-business communications. He plans to use a 95% confidenceinterval estimate of the proportion of email messages that arenon-business; he will accept a 0.05 error. Previous studiesindicate that approximately 30% of employee email is not businessrelated. Cameron should sample _______ email messages.

Select one:

a. 14

b. 323

c. 457

d. 12

Answer & Explanation Solved by verified expert
3.9 Ratings (670 Votes)
Solutiona Given thtaDegrees of freedom 8At 99 confidence level the t is 1    See Answer
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