All values of a data set must be within s√ n – 1of the mean. If a person collected 25 data values that had a mean of 50 and a standard deviation of 3 and you saw that one data value was 67, what would you conclude?
Answer to relevant QuestionsThe three data sets have the same mean and range, but is the variation the same? Prove your answer by computing the standard deviation. Assume the data were obtained from samples. a. 5, 7, 9, 11, 13, 15, 17 b. 5, 6, 7, 11, ...The average score on a state CDL license exam is 76 with a standard deviation of 5. Find the corresponding z score for each raw score. a. 79 b. 70 c. 88 d. 65 e. 77 The data shown represent the scores on a national achievement test for a group of 10th-grade students. Find the approximate percentile ranks of these scores by constructing a percentile graph. a. 220 b. 245 c. 276 d. 280 ...What value in Exercise 26 corresponds to the 40th percentile? Construct a boxplot for the following data which represent the number of innings pitched by the ERA leaders for the past few years. Comment on the shape of the distribution. 192 228 186 199 238 217 213 234 264 187 214 115 ...
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