L10 Quiz Group Meeting - L10 Quiz Group Meeting Question 3 Find the margin of error for a 90 confidence interval when the standard deviation is \u03c3

# L10 Quiz Group Meeting - L10 Quiz Group Meeting...

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L10 Quiz: Group Meeting Question 3Find the margin of error for a 90% confidence interval when the standard deviation is σ = 50 and n = 25. (Round to three decimal places.) Question 4Which of the following statements is true?σ2 is an interval estimator of is a point estimator ofμ.μis a point estimator of σ is an interval estimator of σ2.526Gina wants to construct a 95% confidence interval for GMAT scores. She knows the standard deviation σ=113. She collects a simple random sample of size n=64 computes x¯=526 . . and Question 5What is the point estimate for the true GMAT score? Question 6What is the margin of error for the 95% confidence interval for the true GMAT score? Question 7What is the lower limit of this confidence interval? (Round to three decimal places.)
L10 Quiz: Group Meeting 498.315
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