Answer:
The ratio is 
Step-by-step explanation:
We have

The value of the expression is 630.
The question requires that we have to state the hypothesis:
null hypothesis;H0: u1 < u2, the alternate hypothesis;H1: u1 > u2. The one tail test is what is to be used.
<h3>A.
How to state the hypothesis</h3>
H0: u1 < u2
H1: u1 > u2
The one tail test statistic is what is to be used here
<h3>B.
standard error </h3>

= 1.49
The df = 17 + 15 - 2
= 30
test statistic = 18.9 - 17.4 / 1.49
= 1.007
We have the critical value on excel as T.INV(0.9,30)
= 1.310
E. At 0.1, we can conclude that t-value (1.007) does not lies in the rejection area. We fail to reject the null hypothesis. Hence we conclude that the mean vacation with the unlimited plan is greater.
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Answer:
Option D - $81.75
Step-by-step explanation:
Given : Jake earns 15% commission on the total amount he sells. If he sells $545 worth of items.
To find : How much commission does Jake earn?
Solution :
Using the commission formula,




Therefore, commission does Jake earn is $81.75.
So, option D is correct.
For every $2 donated by an employee, the corporation matches with $3.
The amount donated by the corporation is c, and the amount donated by employees is e.
When the employees donate $2, the corporation donates $3.
We can write 2e=3c.