Answer:
We have to find the 90% confidence interval for the mean
Given sample size
Sample mean
Population standard deviation
Here the confidence level is 90% then
And
The 90% confidence interval is
Here is the critical value at 0.05
From the tables
Now the 90% confidence interval is =
=
=(3840.44, 4133.56)
Hence the 90% confidence interval for the mean is (3840.44, 4133.56)
Answer:
Hi
Step-by-step explanation:
answer is B
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The correct answer is the fourth one 324\pi cm3
200*0.75=150
250-150=100
100/1.25=80
g is greater than or equal to 80
The total amount to be repaid is equal to $949.66
Step-by-step explanation:
Simple interest is a type of interest that is usually applied on short term loans, where when a payment is made towards this kind of interest the payment first goes towards monthly interest, and then the remainder is reverted towards the principal.
FORMULA FOR CALCULATING SIMPLE INTEREST =
Here principal = $922
interest rate = 6%
time period = 6 months (when made per annum it will be 6/12)
SIMPLE INTEREST IS EQUAL TO $27.66
The total amount that is to be repaid is equal to
PRINCIPAL + SIMPLE INTEREST
= $922 + $27.66
= $949.66
