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Andrei [34K]
3 years ago
15

QUESTION 1

Mathematics
1 answer:
I am Lyosha [343]3 years ago
3 0
QUESTION 1
A survey of 85 randomly selected homeowners finds that they spend a mean of $67 per month on home maintenance with a standard
deviation of $14. Construct and interpret a 99% confidence interval for the mean amount of money spent per month on home
maintenance by all homeowners.
What is ?
If necessary, round your answer to three decimal places
QUESTION 2
0
A survey of 85 randomly selected homeowners finds that they spend a mean of S67 per month on home maintenance with a standard
deviation of $14. Construct and interpret a 99% confidence interval for the mean amount of money spent per month on home
maintenance by all homeowners.
What is the t-multiplier?
if necessary, round your answer to three decimal places.
Chick Save and Submit to save and submit. Click Save All Answers to save all answers.
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Step-by-step explanation:

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To figure out the scale factor for the smallest to the largest triangle, divide the larger number by the smaller number (of the same side).

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2 years ago
Ana has won a lottery. She was offered two options to receive the award: She can either take it in five installments of $60,000
AleksandrR [38]

Answer:

Results are below.

Step-by-step explanation:

Giving the following information:

She can either take it in five installments of $60,000 annually, starting from now; or she can take a lump-sum of $255,000 now.

<u>First, we determine the value of the 5 installments using a 5% annual compounded rate.</u>

We calculate the future value, and then the present value:

FV= {A*[(1+i)^n-1]}/i

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FV= {60,000*[(1.05^5) - 1]} / 0.05

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PV= FV/(1+i)^n

PV= $259,768.60

At an annual rate of 5% compounded annually, she should choose the five installments instead of the $255,000.

<u>Now, if the annual rate is 6% continuously compounded.</u>

<u>First, we need to calculate the effective interest rate:</u>

r= e^i - 1

r= effective inerest rate

r= e^0.06 - 1

r= 0.0618

FV= {60,000*[(1.0618^5) - 1]} / 0.0618

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3 years ago
What is the y-value of the vertex of the function f(x)=−(x−3)(x+11)? −8 −4 33 49
alisha [4.7K]

Answer:

y - value of the vertex is 49.

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