subject
Mathematics, 24.03.2020 21:29 Nextlevel3

According to a survey, the average American person watches TV for 3 hours per week. To test if the amount of TV in New York City is less than the national average, a researcher decides to do a hypothesis test, at a 1% significance level. She surveys 19 New Yorkers randomly and asks them about their amount of TV each week, on average. From the data, the sample mean time is 2.5 hours per week, and the sample standard deviation (s) is 0.9 hours. H0: μ≤3; Ha: μ>3. α=0.01 (significance level) What is the test statistic (t-value) of this one-mean hypothesis test (with σ unknown)?

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 12:30, cchavcchav9606
Find the power series expantion of f(z)=log(4=3z) at the point z=-1
Answers: 1
image
Mathematics, 21.06.2019 15:00, asianpatriot7375
The sixth grade art students are making a mosaic using tiles in the shape of right triangles. each tile has leg measures of 3 centimeters and 5 centimeters. i f there are 200 tiles in the mosaic what is the area of the mosaic.
Answers: 1
image
Mathematics, 21.06.2019 17:30, neverfnmind
James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum
Answers: 2
image
Mathematics, 21.06.2019 18:00, ijustneedhelp29
What does the relationship between the mean and median reveal about the shape of the data
Answers: 1
You know the right answer?
According to a survey, the average American person watches TV for 3 hours per week. To test if the a...

Questions in other subjects:

Konu
Mathematics, 20.09.2021 01:30
Konu
Mathematics, 20.09.2021 01:30
Konu
World Languages, 20.09.2021 01:30