Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. to investigate the efficacy of a diet, a random sa

To investigate the efficacy of a diet, a random sample of 16 male patients is drawn...

80.2K

Verified Solution

Question

Statistics

To investigate the efficacy of a diet, a random sample of 16male patients is drawn from a population of adult males using thediet. The weight of each individual in the sample is taken at thestart of the diet and at a medical follow-up 4 weeks later.Assuming that the population of differences in weight before versusafter the diet follows a normal distribution, the t-test forrelated samples can be used to determine if there was a significantdecrease in the mean weight during this period. Suppose the meandecrease in weights over all 16 subjects in the study is 3.0 poundswith the standard deviation of differences computed as 6.0pounds.

a) The t test should be _______-tailed. (one or two)

b) The computed t statistic is _______.

c) There are _______ degrees of freedom for this test.

d) The critical value for a one-tailed test of the nullhypothesis of no difference at the α = 0.05 level of significanceis _______.

e) A one-tailed test of the null hypothesis of no differencewould _______ (be rejected/not be rejected) at the α = 0.05 levelof significance.

Answer & Explanation Solved by verified expert
4.1 Ratings (518 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Discuss Lipoproteins Classification, Metabolism, and Choose One of them and Discuss the Function(s) of it inside the...

Medical Sciences
Q

Compare the working of an Induction motor with a synchronous motor.

Electrical Engineering
Q

I have to answer these questions in a way that I can write out in a...

Basic Math
Q

In Charles Darwin s time many people thought that Earth and its living things were...

Biology
Q

Determine the signs of the given functions sin25 cos 199 GELER

Basic Math
Q

There were 1200 teams competing in the first annual world math tournament. After each round,...

Basic Math
Q

p 2x y 2y x Find the gradient field F Vo for the potential function...

Calculus
Q

Find the variance of the data 87 94 103 84 112 90 X 95 Variance

Algebra
Q

Find the partial sum Sn of the arithmetic sequence that satisfies the given conditions.a 5,...

Algebra
Q

Pittman Company is a small but growing manufacturer of telecommunications equipment. The company has no...

Accounting
Q

The May 31 bank statement of Family Services Association (FSA) has just arrived from Scotiabank....

Accounting
Q

Question 51 (1 point) Saved ...

Accounting