Answered: 6. A research article reported that for…

Name: 6. A research article reported that for a random sample of 850 meal pu
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: 6. A research article reported that for a random sample of 850 meal purchases made at fast food chain A, the mean number of calories was 1,001, and the standard deviation was 481. For a random sample of 2,108 meal purchases made at fast food chain B,

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Topic Video

Question

6. A research article reported that for a random sample of 850 meal purchases made at fast food chain A, the mean number of calories was 1,001, and the standard deviation was 481. For a random sample of 2,108 meal purchases made at fast food chain B, the mean number of calories was 905, and the standard deviation was 626. Based on these samples, is there convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases? (Test the relevant hypotheses using a 0.05 level of significance. Use ?₁ for fast food chain B and ?₂ for fast food chain A.)

State the appropriate null and alternative hypotheses.

H₀: ?₁ − ?₂ > 0

H_a: ?₁ − ?₂ < 0

H₀: ?₁ − ?₂ = 0

H_a: ?₁ − ?₂ < 0

H₀: ?₁ − ?₂ < 0

H_a: ?₁ − ?₂ > 0

H₀: ?₁ − ?₂ < 0

H_a: ?₁ − ?₂ = 0

H₀: ?₁ − ?₂ = 0

H_a: ?₁ − ?₂ > 0

t=_______

P-value=_____

State the conclusion in the problem context.

A) We fail to reject H₀. There is convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.

B) We fail to reject H₀. There is not convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.

C) We reject H₀. There is not convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.

D) We reject H₀. There is not convincing evidence that the mean number of calories in fast food chain B meal purchases is less than the mean number of calories in fast food chain A meal purchases.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions