Question 20 State the appropriate hypotheses for this problem setting above. Question 21 Find the critical value and rejection region at a 10% significance level (rounded off to three decimals). Question 22 Calculate the pooled variance estimator (rounded off to four decimals) Question 23 Calculate the test statistic (rounded off to four decimals).

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

A business consultant wanted to investigate whether providing daycare facilities on the company premises would reduce the absentee rate of working mothers with children aged 6 years or younger. She took a random sample of 15 mothers who work at companies that provide daycare facilities on the premises, and found that mothers missed an average of 4.2 days from work last year with a standard deviation of 3.78 days. She took random sample of 10 mothers working at companies that do not provide daycare facilities, and found that these mothers missed an average of 7.8 days last year with a standard deviation of 10.65 days. Test at a 10% significance level whether mothers working at a company providing daycare facilities will have less days missed from work than mothers working at companies that do not provide daycare facilities.

Question 20
State the appropriate hypotheses for this problem setting above.

Question 21
Find the critical value and rejection region at a 10% significance level (rounded off to three decimals).

Question 22
Calculate the pooled variance estimator (rounded off to four decimals)

Question 23
Calculate the test statistic (rounded off to four decimals). 

Expert Solution
steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman