Question
Asked Jan 19, 2020
50 views

Pulse Rates Listed below are pulse rates (beats per minute) from samples of adult males and females (from Data Set 1 “Body Data” in Appendix B). Does there appear to be a difference?

Male:
86
64
72
64
72
72
54
66
56
80
72
64
96
58
66
Female: 64
70
74
86
90
88
90
90
94
68
90
82
84
82
80
help_outline

Image Transcriptionclose

Male: 86 64 72 64 72 72 54 66 56 80 72 64 96 58 66 Female: 64 70 74 86 90 88 90 90 94 68 90 82 84 82 80

fullscreen
check_circle

Expert Answer

Step 1

Measures of variation:

Consider the measures of variations (coefficient variation, range, variance, and standard deviation) to check whether there appear to be a difference or not.

Mean for the male pulse rates:

Mean for the pulse rates of adult males is calculated as follows:

Statistics homework question answer, step 1, image 1
fullscreen
Step 2

Variance for the male pulse rates:

The variance is obtained as 127.12, from the below calculation:

Statistics homework question answer, step 2, image 1
fullscreen
Step 3
Statistics homework question answer, step 3, image 1
fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Bank Queues Waiting times (in seconds) of customers at the Madison Savings Bank are recorded with tw...

A: In this case we need to find the coefficient variation for the waiting times of customers in single ...

question_answer

Q: Heights Heights of adult males are normally distributed. If a large sample of heights of adult males...

A: Histogram is bell shaped aHistogram is bell shaped and shows a symmetric pattern whenever the data i...

question_answer

Q: Interpreting Normal Quantile Plots Which of the following normal quantile plots appear to represent ...

A: If all the observations in the quantile plot are very close to the straight line, then it can be sai...

question_answer

Q: Sample Size. In Exercises 29–36, find the sample size required to estimate the population mean.  Mea...

A: (a)Range:The formula for  range is,Range=L–SSubstitute 104 for L and 40 for S.Then,

question_answer

Q: Finding Confidence Intervals. In Exercises 9–16, assume that each sample is a simple random sample o...

A: Click to see the answer

question_answer

Q: Using Correct Distribution. In Exercises 5–8, assume that we want to construct a confidence interval...

A: Click to see the answer

question_answer

Q: Before the overtime rule in the National Football League was changed in 2011, among 460 overtime gam...

A: The claim is that neither team has an advantage by winning it is null hypothesis. Thus, the alternat...

question_answer

Q: Police Calls The police department in Madison, Connecticut, released the following numbers of calls ...

A:  There are 7 observed frequencies as  shown below. 

question_answer

Q: Simple Random Sample Which of the following is/are simple random samples? a. As Lipitor pills are be...

A: Simple random sampling:If a sample of n subjects is selected when every unit in the population has t...