Question

In: Statistics and Probability

Use the following scores for questions 1-3: 48, 95, 72, 24, 55 Calculate the mean: __________...

Use the following scores for questions 1-3:

48, 95, 72, 24, 55

Calculate the mean: __________

Calculate the median: __________

Calculate the deviation of each score from the mean: ______________________________

Questions 4-8 refer to the following situation:

A researcher measured self-reported anxiety symptoms for a sample of 5 participants. He recorded the total number of symptoms reported by each participant. The data on six subjects are as follows:

3, 5, 0, 2, 7, 4

Calculate the mean:_______________

Calculate the median:_______________

Calculate the sum of the deviation scores:________________

Calculate the variance:_____________________

Calculate the standard deviation:_____________________

Questions 9-17 refer to the following situation:

Here is the distribution of scores for two separate statistics courses. The first group is from the Fall term. The second group is from the Spring term. Calculate the means, ranges, variances, and standard deviations of each group. Lastly, tell me in words what the numbers are telling us about the data.

Fall: 86, 91, 69, 78, 72, 82, 61, 81

Spring: 70, 92, 85, 77, 65, 88, 80, 72

9. Calculate the mean for the Fall. __________

10. Calculate the mean for the Spring. __________

11. Calculate the range for the Fall. __________

12. Calculate the range for the Spring. __________

13. Calculate the variance for the Fall. __________

14. Calculate the variance for the Spring. __________

15. Calculate the standard deviation for the Fall. __________

16. Calculate the standard deviation for the Spring. __________

17. In your own words, what do the different standard deviations between the Fall and Spring stats courses indicate?

Expert Solution

orchestra answered 2 years ago

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