Question

In: Statistics and Probability

Professor Moore, who lives a many miles outside a college town, records the time he takes to drive to the college each morning.

 

Professor Moore, who lives a many miles outside a college town, records the time he takes to drive to the college each morning. Below are the times (in minutes) for 22 consecutive weekdays. The data are contained in the gray columns in the following table and have been ordered from smallest to largest.

Observation   

Driving Time (min)

Observation   

Driving Time (min)

1

52

12

62.7

2

57.9

13

63.7

3

58.2

14

64.9

4

59

15

65.8

5

59.2

16

66.6

6

59.3

17

67.8

7

59.6

18

69.3

8

59.8

19

70

9

60.5

20

73.7

10

61

21

81.5

11

61.1

22

93.8

A) Create a frequency table. Starting point and bin size is your choice.

B) What is the

1) median,

2) First quartile

3) Third quartile

4) Interquartile range

C) Use the interquartile range (IQR) to calculate if there are any outliers.

Solutions

Expert Solution


Related Solutions

There are three horses in a race. Historical records show that the time it takes each...
There are three horses in a race. Historical records show that the time it takes each horse to complete a similar race is Normally distributed with a mean and standard distribution given in the table below (all numbers are in minutes). Simulate 1,000 races using Excel. Approximately what proportion of the time will each horse win? Horse Mean Standard Dev. 1 0.87 0.17 2 0.95 0.06 3 1.10 0.14 Make sure you explain in your write up what each column...
You are a college professor who suspects that students have copied each others answers on a...
You are a college professor who suspects that students have copied each others answers on a multiple choice (a,b,c,d) exam. Building on the code I have developed  CheatingCodeForCompletion.py , you are to develop a program that will tell you which students have identical answers. I have developed the code that will generate answers for each of the students. You are to complete the code to analyze the answers and print to the screen your analysis as demonstrated in the two example...
An air-conditioning supplier uses two installers. He is interested in comparing the time each installer takes...
An air-conditioning supplier uses two installers. He is interested in comparing the time each installer takes to install an air-conditioning unit. Data concerning installation times was collected over a period of time, and the following results were determined. (Note: the installation times are in hours). Sample Mean Sample Standard Deviation Sample Size Installer A 3 1.1952 8 Installer B 4 1.4142 7 Is there evidence, at the 5% level of significance, of a difference in the average time of installation...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT