You reject the Null Hypothesis only if the p-value is less than alpha.
p < 0.01
To find the p-value, you need to look up test value 2.07 in a standard normal table. The p-value is probability that Z > 2.07. For a two-tailed test, you include both positive and negative cases. |Z| > 2.07.
When you look up 2.07 you get about 0.98.
This means there is about 2% chance Z > 2.07 or 4% chance |Z| > 2.07.
For the two-tailed test we use p = 0.04
.04 > .01
Therefore we do Not reject the Null Hypothesis.
I think the average would increase by $1,650. 5% of 33000 is 1,650. So the the total amount would increase by that.
Answer:
Step-by-step explanation:
25 26
Answer:
3/4w + 2b
Step-by-step explanation:
Just pretty much go through the whole thing and evaluate it word for word.
So 3/4 of w is essentially 3/4w
Add a plus (+) sign to signify addition
The product of 2 and b can be written as 2b or as 2×b, your preference
Assume that the original amount in the account is x.
<u>We will use:</u>
+ to indicate addition of amount (increase in the amount of money)
- to indicate subtraction of amount (decrease in the amount of money)
<u>We have two changes:</u>
<u>1- The first week,</u> he earned $80 and deposited them into the account.
This means that he added $80 to the already existing amount.
Therefore:
amount in account = x + $80
The integer representing this increase would be +80
<u>2- The second week, </u>he withdrew $85 from the account.
This means that he removed $85 from the already existing amount
Therefore:
amount in account = (x+$80) - $85
The integer representing the decrease would be -85
<u>3- getting the change that occurred:</u>
change in account = x + 80 - 85 = x - $5
This means that for the two weeks together, the amount of money in the account decreased by $5
Hope this helps :)