subject
Mathematics, 05.05.2020 06:07 tresajacko4931

In the past, a company found that the mean number of overtime hours for its employees was 10.5 hours per month. However, a recent sample of 40 employees showed that the mean number of overtime hours in a month was 12.3, with s = 4.4 hours. Test the claim, at a significance level of 0.01, that the mean number of overtime hours per month exceeds 10.5 for all employees of this company:
a) Write the null and alternative hypotheses:

b) Find the value of the test statistic (rounded properly):

c) Find the critical value, and sketch the rejection region

d) We will reject / fail to reject H0.

e) Make a statement with your conclusion in the context of the problem

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 13:00
What is the ratio for the surface areas of rectangle prisims shown below given that they are similar and that the ratio of their edge lengths is 7: 3
Answers: 1
question
Mathematics, 21.06.2019 19:30
Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36
Answers: 1
question
Mathematics, 21.06.2019 23:30
It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples
Answers: 1
question
Mathematics, 22.06.2019 00:30
What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21
Answers: 2
You know the right answer?
In the past, a company found that the mean number of overtime hours for its employees was 10.5 hours...
Questions
question
Mathematics, 01.02.2021 02:50
question
Mathematics, 01.02.2021 02:50
question
Mathematics, 01.02.2021 02:50
question
Mathematics, 01.02.2021 02:50
question
Mathematics, 01.02.2021 02:50
question
History, 01.02.2021 02:50
question
Mathematics, 01.02.2021 02:50
question
Chemistry, 01.02.2021 02:50