median of 38, 17, 54, 44, 54, 18

Compute the mean of 84, 41, 86, 76, 43, 28, 63. Round to 2 decimal places as needed

Here is a list of 27 scores on a Statistics midterm exam:20, 30, 31, 32, 46, 48, 49, 52, 54,20, 30, 31, 32, 46, 48, 49, 52, 54,59, 61, 69, 71, 73, 74, 79, 81, 81,59, 61, 69, 71, 73, 74, 79, 81, 81,81, 85, 86, 87, 88, 91, 94, 96, 9781, 85, 86, 87, 88, 91, 94, 96, 97Find   Q3 = Find   Q1 =

Compute the mean of these numbers: 12, 18, 12, 12, 18, 12, 18, 18, 18, 12 (hint: use weighted mean formula)

A random sample of 40 college professors is selected from all professors at a university. The following list gives their ages. 67, 43, 44, 47, 34, 52, 41, 43, 46, 21, 51, 68, 51, 44, 62, 62, 59, 48, 55, 20, 37, 65, 41, 48, 31, 37, 45, 31, 20, 45, 62, 32, 39, 46, 29 , 30, 41, 31, 39, 50. Construct a stem-and-leaf plot for the data. Complete parts a. and b. a. Determine the leaves for each corresponding stem. Complete the table below. (Use ascending order.) Stem Leaves 3 b. What does the shape of the display reveal about the ages of the professors? O A. If you are younger than 30, you cannot be a college professor. O B. The greatest number of college professors are in their 40s. O C. None of the college professors live to be years old. MacBook Air esc 吕0 F3 F1 F2 F4 FS F7

USH financial is examining the use of its midtown ATM machine. Here are the numbers of transactions made per day at this ATM during the past 9 days. 28, 9, 10, 26, 28, 9, 19, 11, 35 Find the range of the data set. ন

Give two sets of five numbers that have the same mean but different standard deviations. OSet 1: 4, 5, 7, 8, 11 Set 2: 3, 6, 7, 9, 10 OSet 1: 2, 4, 6, 8, 10 Set 2: 3, 4, 5, 7, 11 OSet 1: 4, 6, 7, 8, 15 Set 2: 3, 6, 7, 10, 14 OSet 1: 2, 3, 7, 11, 12 Set 2: 5, 6, 7, 8, 9 CSet 1: 3, 4, 6, 9, 13 Set 2: 2, 5, 7, 8, 13 Give two sets of five numbers that have the same standard devlation but different means. OSet1: 2, 5, 7, 12, 14 Set2: 5, 6, 7, 8, 9 CSet 1: 2, 3, 4, 5, 6 Set 2: 4, 5, 6, 7, 8 CSeti: 2, 5, 6, 10, 12 Set2: 5, 6, 7, 10, 12 CSeti: 2, 3, 5, 7, 8 Set2: 4, 6, 7, 11, 12 CSet1: 4, 5, 6, 12, 13 Set2: 4, 5, 7, 9, 10

Suppose that a researcher is studying the wingspans of wild condors. To study this the researcher randomly selects 7 condors that live near the California Coast and 7 condors that live near the Grand Canyon for a total of 14 condors. The researcher measures the wingspan of each of these birds in inches and gets the following data. (Note: You may assume that there are about 400 condors in the wild) 94, 100, 102, 110, 115, 118, 119, 122, 123, 126, 128, 135, 136, 140 (All values in inches) (a) What sampling technique was used to collect this data? (b) Use this data to construct a 99% confidence interval for the average wingspan for California condors. Make sure to confirm all necessary conditions and interpret your interval. (Hint: This should be a 1-sample mean confidence interval) (c) Could you conclude that 99% of California condors will have wingspans inside the interval you found in (b)? Why or why not?