nducted by the Toledo police at the intersection of Byrne and Heather downs for the 7 to 9 AM drive time revealed the following number of vehicles proceeded through the intersection after the light changed. The information reported below is for a sample of seven days during a six month period 14 , 15 , 4 , 7 , 15 , 12 , 15. The Coefficient of Variation (CV) is equal to

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A medical doctor is interested in determining whether mean body temperatures are different in the morning and at night. Five patients were recruited and their body temperatures were measured first at 8 AM and then again at 10 PM. The data is in the following table: Patient 1 2 4 Morning Night 98.0 97.6 97.2 97.0 98.0 97.0 98.8 97.6 97.7 98.8 For this matched pairs experiment, you should take the differences by calculating: Morning - Night. Also, you may use the fact that the sample standard deviation of 44/V5 the differences is 0.844 and that 0.844 0.3774. What is the test statistic for the test? Round your final answer to two decimals. Next Page Page 5 of 15 126 53 1. NOV 18

Below are amounts (in millions of dollars) collected from parking meters by a security service company and other companies during similar time periods. Do the limited data listed here show evidence of stealing by the security service company's employees? Security Service Company: Other Companies: Find the coefficient of variation for each of the two samples, then compare the variation. 1.5 1.5 1.6 1.9 The coefficient of variation for the amount collected by the security service company is 2.5%. (Round to one decimal place as needed.) 1.7 1.6 (...) 1.3 1.8 1.5 1.6 1.3 1.9 1.7 1.6 1.6 1.5 1.3 1.9 1.6 D 1.6

A factory owner has taken a sample (n = 20) of workers to see how many broken widgets each employee produces per day. For the following data, construct a frequency distribution table. Include columns for observed value (Xcat), frequency, proportion, and percent.        2  1  0  2  1  0  7  3  8  0      1  5  0  0  9  2  0  1  3  0

X, absences Y, final grade 4. The data below are the number of absences, x, and the final grades, y, of 9 randomly selected students from a MTH 119 class. Construct a scatterplot of the data. 0 99 4 58 7 51 5 82 9 71 geyerinstructional.com 3 92 16 55 1 5 76 5 82

A medical doctor is interested in determining whether mean body temperatures are different in the morning and at night. Five patients were recruited and their body temperatures were measured first at 8 AM and then again at 10 PM. The data is in the following table: Patient 1 3 14 5 Morning 98.0 97.6 97.2 97.0 98.0 Night 97.0 98.8 97.6 97.7 98.8 For this matched pairs experiment, you should take the differences by calculating: Morning Night. What is the alternative hypothesis of interest? OH1 : HD 0 O H1 : µp # 0 Next Page Page 4 of 15 126 NOV 18 MacBook Pro

tion 1 Consider the following data set: et red 3, 4, 2, 2, 1, 1, 5, 4, 1, 2, 3, 4, 3, 2, 5. Find the median d out of move flag Select one: a. 5 b. 4 С. 2 d. 3

Refer to the following data set: Round solutions to two decimal places, if necessary. What is the mean of this data set? mean- What is the median of this data set? median- 113 80 67 96 141 59 124 124 80 124 80 124 134 140 134 134 70 80 What is the mode of this data set? If no mode exists, type DNE. If multiple modes exist, enter the values in a comma-separated list. model