The average age of Senators in the 108th Congress was 59.5 years. If the standard deviation was 11.5 years, find the z scores corresponding to the oldest and youngest Senators: Robert C. Byrd (D, WV), 86, and John Sununu (R, NH), 40.
Answer to relevant QuestionsThe 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 Room and board costs for selected schools are summarized in this distribution. Find the approximate cost of room and board corresponding to each of the following percentiles. Costs (in dollars) Frequency 3000.5–4000.5 ...Find the percentile rank for each test score in the data set. 12, 28, 35, 42, 47, 49, 50 If the average number of vacation days for a selection of various countries has a mean of 29.4 days and a standard deviation of 8.6, find the z scores for the average number of vacation days in each of these ...A four-month record for the number of tornadoes in 2003–2005 is given here. a. Which month had the highest mean number of tornadoes for this 3-year period? b. Which year has the highest mean number of tornadoes for this ...
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