Answer:
pus$y
Step-by-step explanation:
Answer:
The value of the test statistic is z = -0.877.
Step-by-step explanation:
Testing the difference in mean time spent on housework between husbands and wives.
At the null hypothesis, we test if there is no difference, that is, the subtraction of the means is 0:
At the alternate hypothesis, we test if there is a difference, that is, the subtraction of the means is different from 0.
The test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis, and s is the standard error.
0 is tested at the null hypothesis:
This means that
For the wives the mean was 7 hours/week and for the husbands the mean was 4.5 hours/week. The standard deviation of the differences in time spent on house work was 2.85.
This means that
What is the value of the test statistic for testing the difference in mean time spent on housework between husbands and wives?
The value of the test statistic is z = -0.877.
Step-by-step explanation:
8: 4, 2
20: 10, 5
have a good day
5 1/4=21/4
2 3/5=13/5
1 1/2=3/2
A=1/2(b1+b2)×h
21/4=1/2(13/5+b2)×3/2
21/2=(13/5+b2)×3/2
7=13/5+b2
b2=4.4 or 4 2/5 ft. As a result, C is the correct answer. Hope it help!
Answer:
Yes!
Step-by-step explanation:
Lets say you have 4 numbers. (1-4)
Draw a box and separate the box into 4's (1 for each number)
On 2 sides of the whole box write the numbers (1 on one side, 2 on the same side but below it, 3 on the top of the box, 4 besides the other number)
After setting it up, you multiply them just like a times table.