1. Find the mean of the data provided in the table.

Question

1. Find the mean of the data provided in the table.

12.7 13.9 14.4 15.5 11.9
13.2 14.0 15.2 14.9 17.2
10.8 13.5 14.1 13.4 16.9
A. 14.11
B. 13.91
C.14.21
D.21.16
2. Calculate the standard deviation of the data provided in the table.
1,114 1,209 1,087 1,419 978 1,454
1,343 1,266 1,167 959 1,126 1,537
1,256 1,318 1,511 1,032 1,298 1,106
A. 173.54
B. 171.48
C. 173.19
D. 171.07
3. The data in the table shows the daily maximum temperatures in degrees Fahrenheit for two consecutive weeks in Nashville, Tennessee, during January 2019. How does the standard deviation for the daily maximum temperature during week 1 compare to week 2?
Week 1 59 60 64 65 70 48 37
Week 2 43 50 47 38 37 47 49
A. The standard deviation for week 1, 10.51, is much greater than the standard deviation for week 2, 4.84.
B. The standard deviation for week 1, 11.33, is much greater than the standard deviation for week 2, 5.19.
C. The standard deviation for week 2, 6.83, is slightly greater than the standard deviation for week 1, 5.19.
D. The standard deviation for week 1, 9.95, is much greater than the standard deviation for week 2, 4.81.
4. A company has three offices at locations A, B, and C. The owner of the company counted the number of employees present at each office for 12
days. The results are provided in the table below.
Office A 87 92 73 81 98 79 84 71 67 80 91 77
Office B 91 84 93 76 88 92 87 96 94 90 92 89
Office C 97 83 79 81 78 86 82 80 84 83 91 85
A. Office B had the most employees present each day on average because this office has the greatest mean.
B. Office C had the most employees present each day on average because this office has the greatest minimum score.
C. Office A had the most employees present each day on average because this office has the greatest maximum score.
D. Office A had the most employees present each day on average because this office has the greatest standard deviation.
5. You have been offered a job at two different companies. The starting hourly wage for Company A has a mean of $23.50 and a standard deviation of $1.40. The mean starting hourly wage is $21.80 for Company B with a standard deviation of $1.10. Compare the starting hourly wages for Company A to the starting hourly wages for Company B.(1 point)
A. The average starting hourly wage is greater for Company A than for Company B. The starting hourly wage for Company B is more consistent than for Company A.
B. The average starting hourly wage is greater for Company A than for Company B. The starting hourly wage for Company A is more consistent than for Company B.
C. The average starting hourly wage for Company A is about the same as the average starting hourly wage for Company B. The starting hourly wage is more consistent for Company B than for Company A.
D. The average starting hourly wage is greater for Company B than for Company A. The starting hourly wage for Company B is as consistent as the starting hourly wage for Company A.

Answer 1

1. A. 14.11

2. C. 173.19
3. A. The standard deviation for week 1, 10.51, is much greater than the standard deviation for week 2, 4.84.
4. A. Office B had the most employees present each day on average because this office has the greatest mean.
5. A. The average starting hourly wage is greater for Company A than for Company B. The starting hourly wage for Company B is more consistent than for Company A.

Answer 2

A. The average starting hourly wage is greater for Company A than for Company B. The starting hourly wage for Company B is more consistent than for Company A.

Answer 3