red data are below. 14.6, 17.3, 17.8, 18.3, 19.1, 19.2, 19.6, 20.5, 20.9, 22.9, 23.4, 23.5, 24.2, 27.2 ere are an even number of observations, the median will be the average of the two middle values. The two middle values of the ordered data set are 19. s as follows. average of two middle values 19.6+11 12 2 median number of hours of traditional TV viewing for people aged 18-34 is 13 hours.

The following refer to the following data set: 51.5 78.1 78.1 78.1 38.1 69.9 44.1 58 40.2 56.2 What is the arithmetic mean of this data set? mean = What is the median of this data set? median = = What is the mode of this data set? mode =

Use the properties of the mean and median to determine which are the correct mean and median for the following histogram.   Relative Frequency   0.05 0.10 0.15 0.20 0.25 0.30   1 2 3 4 5 6 7 8 9 0           Choose the correct answer.   Mean is  4.2  and median is  4.5 .     Mean is  5.1  and median is  2.1 .     Mean is  2.4  and median is  2.6 .     Mean is  4.1  and median is  4.6 .

A psychologist has designed an index to measure the social perspectives of elementary school children.  The index is based on ratings of a child’s responses to questions about a set of photographs showing different social situations.  The following are the indices measured on a random sample of 16 children attending elementary school in a particular district. 48, 75, 69, 58, 60, 68, 59, 66, 71, 52, 49, 60, 54, 55, 70, 57   For the data the mean index is 60.69 and the standard deviation is 8.26. Perform a statistical test to determine if the population mean index is greater than 50. a) Name of hypothesis test:   b) H0:   c) HA:   d) Test Statistic:   e) Rejection region:   f) Decision in the context of the problem:

Find the​ mean, median, and mode of the​ data, if possible. If any of these measures cannot be found or a measure does not represent the center of the​ data, explain why.   A sample of seven admission test scores for a professional school are listed below.     11.1 ,  10.7 ,  10.4 ,  9.5 ,  11 ,  9.5 , 11.4     What is the mean​ score? Select the correct choice below and fill in any answer box to complete your choice.     A. The mean score is= ​(Round to one decimal place as​ needed.)   B. There is no mean score.     What is the median​ score? Select the correct choice below and fill in any answer box to complete your choice.   A. The median score is= ​(Round to one decimal place as​ needed.)   B. There is no median score.   What is the mode of the​ scores? Select the correct choice below and fill in any answer box to complete your choice.     A. The​ mode(s) of the scores is​ (are)= ​(Use a comma to separate answers as​ needed.)   B. There is no mode.

Grade-point averages. Find the mean and median for the grouped data in the following table. Interval 1.95−2.15 2.15−2.35 2.35−2.55 2.55−2.75 2.75−2.95 2.95−3.15 3.15−3.35 3.35−3.55 3.55−3.75 3.75−3.95 Frequency 19 15 13 12 10 5 4 5 2 1   Mean = ______. ​(Round to two decimal​ places.)   Median = ______.

A psychologist has designed an index to measure the social perspectives of elementary school children. The index is based on ratings of a child’s responses to questions about a set of photographs showing different social situations.  The following are the indices measured on a random sample of 16 children attending elementary school in a particular district.   48, 75, 69, 58, 60, 68, 59, 66, 71, 52, 49, 60, 54, 55, 70, 57   For the data the mean index is 60.69 and the standard deviation is 8.26. The confidence interval is 95%, with a level of significance of 0.05. Perform a statistical test to determine if the population mean index is greater than 50. a) Name of hypothesis test:   b) H0:   c) HA:   d) Test Statistic:   e) Rejection region:   f) Decision in the context of the problem:

The following refer to the following data set: 81.6 127.2 98.4 100.5 95.8 106.2 127.2 108 127.2 117.8 What is the arithmetic mean of this data set? mean = What is the median of this data set? median What is the mode of this data set? mode = %3D

Use the properties of the mean and median to determine which are the correct mean and median for the following histogram. 03- 0.25. 02- 0.15-4 0.1- 0.05- 0 Choose the correct answer. X Relative Frequency Mean is 2.8 and median is 5.5. Mean is 3.2 and median is 4.6. Mean is 4.0 and median is 4.3. O Mean is 5.6 and median is 5.5.

The following refer to the following data set: 69.4 63.3 68.4 56.9 81.4 81.4 40.6 79.8 56 81.4 What is the arithmetic mean of this data set? mean = What is the median of this data set? median = What is the mode of this data set? mode =