Answer:
Wednesday
Explanation:
To be able to compare the values, we will first need to have a common denominator for all fractions.
Common denominator is 10*11 = 110
For Monday:
Sarah's homework was 7/10 which is equivalent to 77/110
For Tuesday:
Sarah's homework was 3/5 which is equivalent to 66/110
For Wednesday:
Sarah's homework was 9/11 which is equivalent to 90/110
For Thursday:
Sarah's homework was 1/2 which is equivalent to 55/110
Now, we will simply be able to compare these values as follows:
90/110 > 77/110 > 66/110 > 55/110
Therefore, the day with the most homework is the one having 90/110 that corresponds to 9/11 of the classes. This day is Wednesday
Hope this helps :)
now, let's recall that a geometric sequence is one that uses some "r" common ratio to get the next term, by simply multiplying the current term by it.
and of course, the next term or a₅ = 54(3) --> a₅ = 162.
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.