What is the mean number of points scored per game by the high school basketball

Question

What is the mean number of points scored per game by the high school basketball team (the question does not only refer to the points scored by this year’s basketball team but in general to the points scored by the high school basketball team – whichever year-)? Out of a sample of ten games, the mean was 31.1. The standard deviation for the population is 2.3. If we would calculate a confidence interval at the 99% confidence level, the interval would be centered at:

a. x_bar=31.1

b. µ=31.1

c. 31.1+2.3

d. 31.1-2.3

e. µ

Explanation / Answer

The confidence interval will be centered around the a. x_bar=31.1 thus the correct answer is A

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