Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

In December 2004, 54% of students in high school were satisfied with the lunches supplied through the school. In May 2010, an organization conducted a

image text in transcribed
In December 2004, 54% of students in high school were satisfied with the lunches supplied through the school. In May 2010, an organization conducted a poll of 810 students in high school and asked if they were satisfied with the lunches supplied through the school. Of the 810 surveyed, 389 indicated they were satisfied. Does this suggest the proportion of students satisfied with the quality of lunches has decreased? (a) What does it mean to make a Type II error for this test? (b) If the researcher decides to test this hypothesis at the a = 0.10 level of significance, compute the probability of making a Type II error, , if the true population proportion is 0.48. What is the power of the test? (c) Redo part (b) if the true population proportion is 0.52. (a) What does it mean to make a Type II error for this test? Choose the correct answer below. O A. Ho is rejected and the true proportion of high school students who are not satisfied with the quality of lunches is less than 0.54. O B. Ho is not rejected and the true proportion of high school students who are not satisfied with the quality of lunches is less than 0.54. O C. Ho is not rejected and the true proportion of high school students who are not satisfied with the quality of lunches is equal to 0.54. (b) If the researcher decides to test this hypothesis at the a = 0.10 level of significance, compute the probability of making a Type II error, B, if the true population proportion is 0.48. What is the power of the test? B = Power = (Type integers or decimals rounded to four decimal places as needed.) (c) Redo part (b) if the true population proportion is 0.52. B = Power = (Type integers or decimals rounded to four decimal places as needed.)

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

Step: 3

blur-text-image

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

College Algebra (Subscription)

Authors: Mark Dugopolski

6th Edition

0321916670, 9780321916679

More Books

Students also viewed these Mathematics questions