Test 1 review handouts - Review for Test 1 1(Chapter 2 The...

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Page 1 of 5 Review for Test 1 1. (Chapter 2) The following data represent the pulse rate of 16 randomly selected males after stepping up and down on a 6 inch platform for 3 minutes. Pulse is measured in beats per minute. 72 86 88 96 115 120 128 129 136 138 138 143 146 151 154 169 a) What is the variable of interest? Is it categorical or quantitative? If quantitative, is it discrete or continuous? b) Construct a stem-and-leaf plot. c) What percentage of the pulse rates are between 110 and 149.9 beats per minute? d) What percentage of the pulse rates are at least 110 beats per minute? e) Compute the sample mean and median pulse. What do these values tell you about the shape of the distribution? f) Compute the range and sample standard deviation. g) Compute Q1, Q3, and IQR. h) Are there any outliers in the data set? i) Calculate the z-score for 72. Page 2 of 5 2. (Chapter 2) The data values below are the years of service for a sample of n = 10 employees at a company as reported by data entry personnel: 10 13 14 31 11 16 17 19 8 203 (Note: the 10 th
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