Advertisements by Core Fitness Center claim that completing its course will result in losin weight. A random sample of eight recent participants showed the following weights befor and after completing the course. At the .01 significance level, can we conclude the stu dents lost weight? Name Hunter Cashman Mervine Massa Creola Peterson Redding Poust Before 155 228 141 162 211 164 184 172 (a) State the null hypothesis and the alternate hypothesis. (b) What is the critical value of t? (c) What is the computed value of t? After 154 207 147 157 196 150 170 165
Advertisements by Core Fitness Center claim that completing its course will result in losin weight. A random sample of eight recent participants showed the following weights befor and after completing the course. At the .01 significance level, can we conclude the stu dents lost weight? Name Hunter Cashman Mervine Massa Creola Peterson Redding Poust Before 155 228 141 162 211 164 184 172 (a) State the null hypothesis and the alternate hypothesis. (b) What is the critical value of t? (c) What is the computed value of t? After 154 207 147 157 196 150 170 165
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Advertisements by Core Fitness Center claim that completing its course will result in losing
weight. A random sample of eight recent participants showed the following weights before
and after completing the course. At the .01 significance level, can we conclude the stu-
dents lost weight?
Name
Hunter
Cashman
Mervine
Massa
Creola
Peterson
Redding
Poust
Before
155
228
141
162
211
164
184
172
(a)
State the null hypothesis and the alternate hypothesis.
(b) What is the critical value of t?
After
154
207
147
157
196
150
170
165
(c) What is the computed value of t?
(d)
Interpret the result. What is the p-value?
(e) What assumption needs to be made about the distribution of the differences?
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