10. One sample has a mean of M = 8 and a second sample has a mean of M = 16. The two samples are combined into a single set of scores. a. What is the mean for the combined set if both of the original samples have n = 4 scores? b. What is the mean for the combined set if the first sample has n = 3 and the second sample has n = 5? c. What is the mean for the combined set if the first sample has n = 5 and the second sample has n = 3?

4. There are 35 students in a class. Fifteen of them are men and 20 of them are women. The mean height of the men is 69.65 inches, and the mean height of all 35 students is 67.18 inches. What is the mean height of the women?

Suppose the mean miles per gallon for a sample of 70,000 new cars and light trucks sold in the United States in 2017 differs from the population mean  by more than one gallon. How would you interpret this result?

1. In a distribution of six scores, the deviations from the mean for five of the scores are +5, +3, +1, 0, and-3.What is the value of the deviation for the sixth score?   2. On the midterm exam in their anthropology course, Jan’s deviation score was +5, Kim’s was -12, andLeslie’s was 0.a) of these three, who did the best and who did the worst?b) the mean for the class was 80. What was the raw score for Jan, Kim, and Leslie?

5. Given an example where you measured the height of 10 of your classmates and computed a mean of 70 inches and standarad diviation of 4 inches, COmpute the T scores for 68 inches and 76 inches.

Q.2) A manager at the delivery company recorded the mean and median delivery cost, but unfortunately lost the paper on which the values were recorded. However, the manager can remember that one value was about $4.00 and the other was about $4.40. Which value is the mean and which is the median? i. $4.00 is the mean and $4.40 is the median. ii. ii. $4.40 is the mean and $4.00 is the median. iii. It's impossible to tell which is which. 111. Q.3) Which of the following sets of four numbers has the largest standard deviation? (а) 100, 101, 102, 103 (b) 7, 8, 9, 10 (с) 5, 5, 5, 5 (d) 0, 1, 2, 3 (e) 0, 0, 10, 10

8.Suppose you compare the mean of raw data and the mean of the same raw data grouped into a frequency distribution. These two means will be a. Exactly equal. b. The same as the median. c. The same as the geometric mean. d. Approximately equal.

Suppose there are 5 students in a room. The mean age is 19.8 years, and the median age is 19. If the youngest person leaves and is not replaced by another person, what happens to the mean and the median? O The mean and median increase. The mean increases, and the median either increases or stays the same. The mean increases, but it is impossible to determine whether the median increases, decreases, or stays the same. The mean increases, and the median stays the same. The median increases, and the mean either increases or stays the same.

The average grade for a group of students in a statistics exam was 85 points, with a standarddeviation of 3 points.a. What proportion of students have at least 80 points on the exam? b. What proportion of students have less than 80 points on the exam?

16. The mean score of 15 male students taking an economics test is 74 and the mean score of 12 female students taking the same test is 77. The combined mean score of 27 male and female students is: a. 74.67 b. 77.33 c. 75.33 d. 75.67