Please help asap For Questions 1-4, consider the following:A study is designed to determine the effect of an office-training course on typing productivity. Fifteentypists who have not taken the course are randomly selected. The investigator assigns 20 pages ofequally difficult text to be typed by each typist both before and after completing the training course.The investigator wants to find out whether the training course has reduced the number of errors bymore than 10.Define d= Before - After.What is the critical value to test the hypothesis at the 5% level of significance that the training coursehas proven to be useful in reducing the number of typing errors by more than 10?3O 1.761O-1.7611.833O-1.345O 1.345< PreviousE45MacBook Pro78Next >

It is given that Sample size, n = 15 Significance level, α = 0.05

What is the critical value to test the hypothesis at the 5% level of significance that the training course has proven to be useful in reducing the number of typing errors by more than 10? 1.761 O-1.761 1.833 -1.345 1.345

What is the critical value to test the hypothesis at the 5% level of significance that the training course has proven to be useful in reducing the number of typing errors by more than 10? 1.761 O-1.761 1.833 -1.345 1.345

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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Please help asap

For Questions 1-4, consider the following:
A study is designed to determine the effect of an office-training course on typing productivity. Fifteen
typists who have not taken the course are randomly selected. The investigator assigns 20 pages of
equally difficult text to be typed by each typist both before and after completing the training course.
The investigator wants to find out whether the training course has reduced the number of errors by
more than 10.
Define d= Before - After.
What is the critical value to test the hypothesis at the 5% level of significance that the training course
has proven to be useful in reducing the number of typing errors by more than 10?
3
O 1.761
O-1.761
1.833
O-1.345
O 1.345
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4
5
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