Q11 Natalie is interested in the money which people spend on textbooks. She obtained mean of...

Q11 Natalie is interested in the money which people spend on textbooks. She obtained mean of $100 that has a SD of $30 in a sample of 121 students. What’s her 99% CI of the mean? A. [40.00, 160.00] B. [94.66, 105.34] C. [95.42, 104.58] D. [92.98, 107.02]

Q12 A researcher selects a sample of 1000 participants from a population with a mean of 81 and a standard deviation of 10. About 99% of the sample means in this sampling distribution should be between a sample mean of ______. A. 80.19 and 81.81 B. 80.38 and 81.62 C. 80.48 and 81.52 D. 51.00 and 111.00

Expert Solution

orchestra answered 1 year ago

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