A random sample of 10 secretaries was asked to type a certain memorandum using both computers and typewriters, and the time required to finish the task was recorded for each secretary. A test of hypothesis will be conducted to determine if there is enough evidence to conclude that the average time required to type a certain memorandum is faster if female secretaries are using computers rather than typewriters using a 5% level of significance. What is the appropriate null hypothesis?    a)The average time required to type a certain memorandum is less than or equal to if female secretaries are using computers rather than typewriters.     b)The average time required to type a certain memorandum is lesser if female secretaries are using computers rather than typewriters.     c)The average time required to type a certain memorandum is greater if female secretaries are using computers rather than typewriters.    d)The average time required to type a certain memorandum is different if female secretaries are using computers rather than typewriters

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question

A random sample of 10 secretaries was asked to type a certain memorandum using both computers and typewriters, and the time required to finish the task was recorded for each secretary. A test of hypothesis will be conducted to determine if there is enough evidence to conclude that the average time required to type a certain memorandum is faster if female secretaries are using computers rather than typewriters using a 5% level of significance.

What is the appropriate null hypothesis?

  
a)The average time required to type a certain memorandum is less than or equal to if female secretaries are using computers rather than typewriters.
   
b)The average time required to type a certain memorandum is lesser if female secretaries are using computers rather than typewriters.
   
c)The average time required to type a certain memorandum is greater if female secretaries are using computers rather than typewriters.
  
d)The average time required to type a certain memorandum is different if female secretaries are using computers rather than typewriters
 
I know Option B IS WRONG but cant seem to find the correct one
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON