Solution Found!

Statistics / Elementary Statistics: A Step By Step Approach 9 / Chapter 3 / Problem 4DP

Elementary Statistics: A Step By Step Approach | 9th Edition | ISBN: 9780073534985 | Authors: Allan Bluman

Change Question

Solution: When appropriate, use MINITAB, the TI-83 Plus, the

Chapter 3, Problem 4DP

(choose chapter or problem)

Get Unlimited Answers

QUESTION:

Problem 4DP

When appropriate, use MINITAB, the TI-83 Plus, the TI-84 Plus, or a computer program of your choice to complete the following exercises.

Health and Wellness Use the data collected in data project 6 of Chapter 2 regarding heart rates. Determine the mean and standard deviation for each set of data. Do the means seem very different from one another? Do the standard deviations appear very different from one another?

Questions & Answers

QUESTION:

Problem 4DP

When appropriate, use MINITAB, the TI-83 Plus, the TI-84 Plus, or a computer program of your choice to complete the following exercises.

ANSWER:

Solution

Step 1 of 2

We have to find the mean and standard deviation of the for each data set

Here the data is collected regarding the heart rates before exercise and after exercise

The heart rates before exercise is

87	69	97	95	88
87	100	99	61	70
85	80	94	84	95
75	78	81	86	79
65	82	87	69	81
73	77	93	100	78
74	60	84	75	72
60	99	79	81	88

The mean and standard deviation of before exercise data:

$Sample\ mean\ \overline{X}=\frac{\sum\limits_{i=1}^{n}{X}_{i}}{n}$

$\overline{X}=\frac{87+69.......+98+97}{50}=79.34$

$Sample\ standard\ deviation\ {s}^{\ }=\sqrt{\frac{\sum\limits_{i=1}^{n}{(X}_{i}-\overline{X}{)}^{2}}{n-1}}$

$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ {s}^{\ }=\sqrt{\frac{(87-79.34{)}^{2}+............+(88-79.34{)}^{2}}{49}}$

$Sample\ standard\ deviation\ {s}^{\ }=12.09$

Add to cart

Study Tools You Might Need

Solution Found!

Solution: When appropriate, use MINITAB, the TI-83 Plus, the

Questions & Answers

Study Tools You Might Need

Chapter: 2 Problem: 2.83

Chapter: 9 Problem: 34AYU

Chapter: 0 Problem: 2

Chapter: 11 Problem: 11-40

Chapter: 23 Problem: 7

Chapter: 14 Problem: 1

Chapter: 14 Problem: 1

Chapter: 10 Problem: 1

Not The Solution You Need? Search for Your Answer Here:

Login

Register

87	69	97	95	88
87	100	99	61	70
85	80	94	84	95
75	78	81	86	79
65	82	87	69	81
73	77	93	100	78
74	60	84	75	72
60	99	79	81	88

87	69	97	95	88
87	100	99	61	70
85	80	94	84	95
75	78	81	86	79
65	82	87	69	81
73	77	93	100	78
74	60	84	75	72
60	99	79	81	88

Solution Found!

Solution: When appropriate, use MINITAB, the TI-83 Plus, the

Questions & Answers

Study Tools You Might Need

Chapter: 2 Problem: 2.83

Chapter: 9 Problem: 34AYU

Chapter: 0 Problem: 2

Chapter: 11 Problem: 11-40

Chapter: 23 Problem: 7

Chapter: 14 Problem: 1

Chapter: 14 Problem: 1

Chapter: 10 Problem: 1

Not The Solution You Need? Search for Your Answer Here:

Login

Register

Reset password

87	69	97	95	88
87	100	99	61	70
85	80	94	84	95
75	78	81	86	79
65	82	87	69	81
73	77	93	100	78
74	60	84	75	72
60	99	79	81	88