Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

The following table lists the weight of individuals before and after taking a diet prescribed by a weightloss companyr for a monr: Weight-loss Data Individual

image text in transcribed
The following table lists the weight of individuals before and after taking a diet prescribed by a weightloss companyr for a monr: Weight-loss Data Individual Weight Before Weight After Weight Loss (lb) (lb) (lb) A 130. 3 12 1 9.3 B 127.2 116.4 10.8 C 128.5 1 18.6 9.9 D 196.0 179.9 15.1 E 138.2 130.7Ir 7.5 F 143.3 126.8 15.5 You may nd this Student's t distriJuon table useful in answering re following questions. You may assume that re differences in weight are normally distributed. a) Calculate re sample variance (5'12) of the changes in individual weights. Give your answer to 2 decimal places. b) A disgruntled customer states: "This weightloss company is a complete faroe. All the people I know who signed up experienced no changes in their weight at all. I seriously doubt this diet has any effect whatsoever. I want my moneyr back!" You plan to do a hypothesis test on this claim where the hypotheses are: Ho: the customer's claim is true and the program has no effect on weight HA: the customer's claim is not true and the program does have an effect on weight, whether it increases or decreases According to the data given, you should the null hypothesis at a condence level of 99%

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Discrete Mathematics With Applications

Authors: Susanna S Epp

5th Edition

0357035283, 9780357035283

More Books

Students also viewed these Mathematics questions

Question

What are the factors affecting organisation structure?

Answered: 1 week ago

Question

What are the features of Management?

Answered: 1 week ago

Question

Briefly explain the advantages of 'Management by Objectives'

Answered: 1 week ago