Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

H0:20.3H0:20.3 H1:>20.3H1:>20.3 Your sample consists of 46 values, with a sample mean of 20.9. Suppose the population standard deviation is known to be 2.84. a)

H0:20.3H0:20.3 H1:>20.3H1:>20.3 Your sample consists of 46 values, with a sample mean of 20.9. Suppose the population standard deviation is known to be 2.84. a) Calculate the value of the test statistic, rounded to 2 decimal places. z=z= b) At =0.08=0.08, the rejection region is

  • z>1.41z>1.41
  • z<-1.41orz>1.41z<-1.41orz>1.41
  • z<-1.75z<-1.75
  • z>1.75z>1.75
  • z<-1.75orz>1.75z<-1.75orz>1.75
  • z<-1.41z<-1.41

c) The decision is to

  • Accept the alternative hypotheis
  • Reject the null hypothesis
  • Fail to reject the null hypothesis
  • Accept the null hypothesis

d) Suppose you mistakenly rejected the null hypothesis in this problem, what type of error is that?

  • Type I
  • Type I

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

Mathematical Logic Foundations For Information Science

Authors: Wei Li

2nd Edition

3034808623, 9783034808620

More Books

Students also viewed these Mathematics questions