4. Consider a data set of 1000 annual incomes (in thousand of dollars). Suppose twozeros were mistakenly added to one of the incomes, making it 100 times the correctamount. How would this affect the mean and median? Underline the correct choice:a. The [mean, median] would erroneously be increased substantially.b. The [mean, median] would be changed very little or not at all, depending on whetherthe changed observation was below or above the [mean, median]. That is, the [mean,median] is robust.

There are total 1000 annual incomes in a data set. Now, 2 zeros have been mistakenly added to one of…

Answered: 4. Consider a data set of 1000 annual…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You want to construct a stem-and-leaf plot for the following data set. What would be the "leaves" for the "stem" of 7? You should express your answer as a single multiple-digit number. For example, 5899, but not 5 8 9 9 (i.e., with spaces between the numbers). Remember to put the entries in order.
5.Identify the following as being discrete or continuous data. Explain.a. The average number of pets was 1.823b. The puppy weighed 2 pounds
Two different simple random samples are drawn from two different populations. The first sample consists of 30 people with 15 having a common attribute. The second sample dules consists of 1900 people with 1348 of them having the same common attribute. Compare the results from a hypothesis test of p, = p2 (with a 0.01 significance level) and a 99% confidence interval estimate of p, - P2. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 = P2 H1: P1> P2 O D. Ho: P1 SP2 H1: P1 +P2 О В. Но: Ра 3P2 H1: P1
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
Based on the following data set: 150, 180,210,220,250,325 What would be the change to the mean, median, and mode if 325 is changed to 150. Mean Median Mode Original Changed
Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. a. Find the mean, median, and mode of this data. b. Explain which measure of central tendency will best predict how many miles Gina will drive in the sixth year. a. mean= 12,700; median= 13,156; no mode; the mean is the best choice because it is representative of the entire data set. b. mean= 13,156; median= 12,700; mode= 3,628; the median is the best choice because it is not skewed by the high outlier. c. mean= 13,156; median= 12,700; no mode; the mean is the best choice because it is representative of the entire data set. d. mean= 13,156; median= 12,700; no mode; the median is the best choice because it is not skewed by the high outlier.
A shopper at a local supermarket has spent these amounts in his last eight trips to the store: $32.92, 14.14, 30.80, 28.34, 75.58, 36.33, 33.51, and 22.94. Which statement about deleting the amount spent of $75.58 is false? a. The median of this data set may be more representative of the mean. b. The value of the mean would be reduced by $5.89. c. The value of the mean would not change. d. The value of the mean would be greatly reduced.
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 =
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.
Which of these is an advantage of using a transformed score when reporting the score of an individual case? a. Transformed scores will allow the mean score to be reported. b. Transformed scores will be reported on the nominal level. c. Transformed scores provide a context for the individual's score d. Transformed scores provide a measure of variability.
14. The range is defined as the: a. variability of the data with reference to extreme scores. b. the variability of the data with reference to the mean. c. variability of the data in terms of how many subjects achieved each value of the variable. d. SS/n

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