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Leviafan [203]
3 years ago
14

Following are interest rates (annual percentage rates) for a 30-year-fixed-rate mortgage from a sample of lenders in a certain c

ity. It is reasonable to assume that the population is approximately normal. 4.327, 4.461, 4.547, 4.662 , 4.365, 4.526 , 4.842 Find the upper bound of the 99% confidence interval for the mean rate.
Business
1 answer:
aalyn [17]3 years ago
5 0

Hey There!:

Sample Mean = 4.4823

SD = 0.1859

Sample Size (n) = 7

Standard Error (SE) = SD/root(n) = 0.0703

alpha (a) = 1-0.99 = 0.01

t(a/2, n-1 ) =  3.7074

Margin of Error (ME) =  t(a/2,n-1)x SE = 0.2606

99% confidence interval is given by:

Sample Mean +/- (Margin of Error)

4.4823 +/- 0.2606 = (4.222 , 4.743)

Hope this helps!

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Casey Klemons' agreement (BELO plan) with his employer provides for a pay rate of $16.50 per hour with a maximum of 50 hour. How
KatRina [158]

Answer:

$907.50

Explanation:

Calculation for How much would Klemons be paid for a week in which he worked 46 hours

Amount to paid =(10 × 0.5 × $16.50)+(50× $16.50

Amount to paid=$82.50 + $825

Amount to paid=$907.50

Therefore the amount that Klemons should be paid for a week in which he worked 46 hours is $907.50

8 0
3 years ago
what is the present value of the following cash-flow stream if the interest rate is 6%? note: do not round intermediate calculat
Anettt [7]

The present value of the cash-flow stream if the interest rate is 6% is $323.03.

<h3>What is the interest rate?</h3>

The interest rate can be defined as the amount or the percentage that is being fixed or fluctuating depending upon the condition of the agreement. The interest is calculated on the amount that is being loaned or given to the individual or a company.

According to the given question, the interest rate is 6%

1st year $120

2nd year $320

3rd year $220

Now, by applying the formula for the present value:

\rmPV = \dfrac{fv}{(1 + r)^t}

\dfrac{120}{1.06} +  \dfrac{320}{(1.06)^2} + \dfrac{220}{(1.06)^3}

= 113.20 + 284.96 + 184.87

= 323.03

The present value of the cash flow stream is $323.03

Learn more about  interest rate, here:

brainly.com/question/14445709

#SPJ4

7 0
2 years ago
[7×(2+3)]-20= ?<br>This is a grouping symbols math. This one is hard.
malfutka [58]
First solve the inner parenthesis.

[7 * (5)] - 20

Solve what is in the parenthesis.

35 - 20= 15

Hope this helps!
7 0
3 years ago
Read 2 more answers
A perfectly competitive firm a. has a perfectly inelastic demand. b. has a perfectly elastic supply. c. Answers A and B are corr
den301095 [7]

Answer:

b

e

Explanation:

A perfect competition is characterized by many buyers and sellers of homogenous goods and services. Market prices are set by the forces of demand and supply. There are no barriers to entry or exit of firms into the industry.  

In the long run, firms earn zero economic profit.  If in the short run firms are earning economic profit, in the long run firms would enter into the industry. This would drive economic profit to zero.  

Also, if in the short run, firms are earning economic loss, in the long run, firms would exit the industry until economic profit falls to zero.  

5 0
3 years ago
How much should i budget monthly for trajsportation
zhannawk [14.2K]

Answer:

You should say about $500 for transportation

Explanation:

6 0
2 years ago
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