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1. In a sample of 350 students selected from a large college ofbusiness, 25% are found to be marketing majors. The 25% is astatistic.

True                False

1. Lily has been keeping track of what she spends to eat out. Thelast week's expenditures for meals eaten out were $5.69, $5.95,$6.19, $10.91, $7.49, $14.53, and $7.66. What is the mean amountLily spends on meals?

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1. Monthly rent in dollars for a sample of 10 stores in a smalltown in South Dakota are as follows: 220, 216, 220, 205, 210, 240,195, 235, 204, and 250. What is the sample mean?

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1. Suppose that a firm's sales were $2,500,000 four years ago, andsales have grown annually by 25%, 15%, -5%, and 10% since thattime. What was the geometric mean growth rate in sales over thepast four years?

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1. The data set 10, 20, 30 has the same variance as the data set100, 200, 300.

True                False

1. The values for a sample taken from a particular population arelisted below. Calculate the standard deviation for the samplevalues.

9     14    18     21

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1. A basketball player has the following points for seven games:20, 25, 32, 18, 19, 22, and 30. Compute the coefficient ofvariation.

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1. According to the Empirical Rule, if the data form a bell shapednormal distribution, approximately ________ % of the observationswill be contained within two standard deviations.

1. In a bell-shaped distribution, there is no difference in thevalues of the mean, median, and mode.

True                False

1. A data sample has a mean of 107, a median of 122, and a mode of134. The distribution of the data is positively skewed.

True                False