Hurricane Andrew swept through southern Florida causing billions of dollars of damage. Because of the severity of the storm and the type of residential construction used in the semitropical area, there was some concern that the average claim size would be greater than the historical average hurricane claims of $24,000. Several insurance companies collaborated in a data gathering experiment. They randomly selected 84 homes and sent adjusters to settle the claims. In the sample of 84 homes, the average claim was $27,5000 with a population standard deviation of $2400. Is there sufficient evidence at a 0.02 significance level to support the claim that the home damage is greater than the historical average? Assume the population of insurance claims is approximately normally distributec. Compute the value of the test statistic.

Answers

Answer 1

The value of the t test is 13.36, we have to conclude that there is sufficient evidence that suggests that insurance adjustment was greater than $2400.

The hypothesis formulation

H0: u = 24000

H1: u > 24000

This test is a right tailed test

we have n = 84 homes

bar x = 27500

s = 2400

Next we have to find the test statistic

The formula for this is given as

[tex]t = \frac{x-u}{s/\sqrt{n} }[/tex]

When we out in the values we would have

[tex]t = \frac{27500-24000}{2400/\sqrt{84} }[/tex]

This would give us the answeer of the t test as

t test = 13. 3658

We have alpha = 0.02

the degree of freedom = 84 - 1 = 83

we have to find tα/2, df

=  ±2.0865

Given that the value of the test statistic is greater than critical value we would have to then reject the null hypothesis.

Hence the conclusion that we can make is that there is sufficient evidence that suggests that insurance adjustment was greater than $2400.

Read more on statistics here

https://brainly.com/question/4219149

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Related Questions

A car travels 45 miles on one gallon of gas.The car uses 10 gallons of gas.How many miles does it travel

Answers

Answer:

69

Step-by-step explanation:

A car travels 45 miles on one gallon of gas.The car uses 10 gallons of gas.How many miles does it travel

Answer:

it travels 450 miles on 10 gallons of gas.

Step-by-step explanation: Can I get the brainliest answer if it's correct.

whats the anwser for 14−3x<−1

Answers

Answer:

Step-by-step explanation:

Here you go mate

Step 1

14−3x<−1  Question

Step 2

14−3x<−1  Simplify

Step 3

14−3x<−1   Subtract 14 from sides

-3x<-15

Step 4

-3x<-15  Divide sides by -3

x>5

Answer

x>5

Hope this helped

Answer:

Step-by-step explanation:

I can help

Step 1

14−3x<−1  Simplify

Step 2

14−3x<−1  subtract 14 from the sides

-3x<-15

Step 3

-3x<-15  Divide the sides by 3

-3x/-3<-15/-3

Answer

x>5

Hope this helps

y = 2x - 15 y = 5x solve using systems of equations

Answers

Answer:

The answer will be (-5,-25) or x= -5 and y=-25

Step-by-step explanation:

Hope this helped

Answer:

Step-by-step explanation:

Since the solution will occur when y=y

2x-15=5x

-3x-15=0

-3x=15

x=-5, using this in y=5x

y=5(-5)

y=-25 so the solution is the point

(-5, -25)

Help this is timed!!!

Answers

Answer:

C. (4,2)

Step-by-step explanation:

The point where the lines intersect is (4, 2)

Answer:

IT IS 2,4!!!!!!!!!1

Step-by-step explanation:

What's the probability you will flip 3 coins in a row and they all land on HEADS?
A. 3 out of 6 chance
B. 1/8 chance
C. 2 in 16 chance
D. 4 in 5 chance

Answers

Answer:

B. 1/8 chance

Step-by-step explanation:

Every time you flip a coin you have a 1/2 probability of landing on heads.

If you repeated the process three times in the row

It would be 1/2 x 1/2 x 1/2 = 1/8

The odds they all land on heads is 1/8

Jason wants to create a box with the same volume as the one shown below. He wants the length to be 4inches. What would be the measurements of the width and height?

Answers

Sorry, need either a photo of the box or the measurements

Jada’s sister works in the furniture store. The store bought a table for $200, and sold it for $350. What percent was the mark up?

Answers

Answer:

75%

Step-by-step explanation:

350-200=150

150 is 75% of 200

Answer:

175%

Step-by-step explanation:

350/200 = 175/100

Sorry if it doesn't make sense but if it was 75% then it would be lower than original price.

solve for x: 3(x + 1) = −2(x − 1) + 6.

Answers

Answer:

x=1

Step-by-step explanation:

3(x+1)=-2(x-1)+6

3x+3=-2x+2+6

3x+2x=2+6-3

5x=8-3

5x=5

x=[tex]\frac{5}{5}[/tex]

x=1

I need some help with this question​

Answers

9514 1404 393

Answer:

  terms: 2

  degree: 1

Step-by-step explanation:

The expression has two terms, separated by a minus sign.

The degree of the expression is the exponent of the only variable, 1. (Typically, a coefficient of 1 and/or an exponent of 1 are not shown.)

  terms: 2; degree: 1

i ready classroom grade 8 volume 1 mathematics

Can anyone help me with this asap !!!

Answers

Answer:

COCO is life

Step-by-step explanation:

COCO is = to food and water

And food of COCO contains 2grams

Water of COCO contains 10 liters

So add grams and liters together

And u get this

10l/41ⁿ9xg451/⅞41 + we12/need/34¹⅔/coco

=coco 10274728l

Which fraction has a repeating decimal as its decimal expansion?
3/25
3/16
3/11
3/8

Answers

It should be 3/11 because we know that 11 is a number where if almost any number divide 11 is a repeating.

write an equation that has the solution of X equals Y

Answers

Answer:

Step-by-step explanation:

The system of equations x + y = 1 and x – y = 2 has the unique solution x = 1 and y = –1.

There are infinite pairs of system of equations which have the unique solution x = 1 and y = –1.

Hope this information will clear your doubts about the topic.

Mrs. Rodriguez has 18 packages of pens in stock at her store on Monday. On Tuesday, she has 7/9 the number of pens she had on Monday. On Wednesday, she has 2/7 of the number of pens she had on Tuesday.

How many packages of pens does she have on Wednesday?

Answers

Answer:

No but she can have dezzz nuts

Step-by-step explanation:

What does (x-6) ( x-2) represent

Answers

x^2-8x+12

Step-by-step explanation:

you foil them

Which graph represents this system?
Y=3
X+ y = 4


Answers

Answer:

Step-by-step explanation:

Today only, a sofa is being sold at a 35% discount. The sale price is $559.
What was the price yesterday?

Answers

Answer:

195.65

Step-by-step explanation:

Answer:

100%-29% = 71%

568/0.71 = 800

price was $800

Step-by-step explanation:

If I'm wrong I'm sorry

If I'm right Thank you and (Brainliest plz )

Someone plz help me
I will give brainliest!!

Answers

Answer:

3) fifty seven and three tenths

4) 1, 2, 4, 8, 16

5) No, she would have only 60 pictures in the album. When she has 80 pictures in total. 15×4=60

Step-by-step explanation:

Hope this Helps!!

:)

Find the distance between

Answers

Answer:

4,3

Step-by-step explanation:

Edunuity sucks;-;

hi-

That answer equals 5

Patty, Helene, and Mira share $0.96 that they found in an old wallet. How much money does each girl get?

Answers

Answer:

33 cents

Step-by-step explanation:

.96 divided by 3 = .36

Which expression is equivalent to 3 (x – 9) + 6?
A. 3x - 3
B. 3x - 21
C. 15 - 3x
D. 33 - 3x

Answers

It’s B, the answer is 3x-21

Gilbert took 2 hours longer to drive 240 miles on the first day of a business trip than to drive 144 miles on the second day. If his rate was the same both days, what was his driving time for each day?

Answers

Answer:

dyvhbCNN mfg beneficialgVCR specializations acknowledgement

Given the following formula, solve for I.
P = 2(1 + b)
A
P - 0
4
OB. 1 = 4(P + b)
= P =
P - 26
OD. I =P
P – 5
OC. 1 =
2

Answers

answer: c. l =p-2b/2

step by step:

p=2(1-b)

p=2l-2b

p+2b/2=2l/2

l =p-2b/2

How can I solve this question?

Answers

draw a rectangle triangle :

sin B=8/17 that means that de biggest side are 17 ("hipotenusa"), and another side is 8. Applying de theorem of pythagoras:

[tex]17^{2} =8^{2} +x^{2} \\x^{2} =17^{2} -8^{2}\\x=\sqrt{17^{2} -8^{2}} \\x=5\sqrt{5}[/tex]

*
Simplify the square root
V16
O
16
0.4
O
40
O
4

Answers

Answer:
4
Step by step:
The square root of 16 is 4. To check, multiply 4 on itself (4x4) to see if the answer is 16.
√16 = 4

because 4² = 4×4 = 16

answer is option A

The average 12-ounce container of raspberries contains 120 raspberries. Since the size of the raspberries can vary, the actual quantity of raspberries in a container can range anywhere from 4 berries below average to 4 berries above average.

Write and solve an absolute value equation to calculate the minimum and maximum raspberry quantities in a 12-ounce container.

Enter your answers in the boxes below.

Minimum Quantity:
raspberries

Maximum Quantity:
raspberries

Answers

Ik someone else already answerd but here is confirmation just incase :)

A triangular prism where the base is a right traingle with lengths of the edge are given 3cm,4cm,5cm,3cm what are the total surface

Answers

Answer:

Total surface area is 48 square Centimeter

Step-by-step explanation:

Total surface area is equal to the product of triangular base area and the height of the prism

Area calculation of triangular base

[tex]S = \frac{3+4+5}{2} = 6\\[/tex]

Area =

[tex]\sqrt{S(S-a)(S-b)(S-c)}[/tex]

Substituting the given values in above equation we get

[tex]\sqrt{6 *3*2*1} = 6[/tex] square centimeter

Total surface area

= [tex]2 * 6 + (3*3)+(3*4)+(3*5)\\= 12 + 9 + 12+ 15\\= 48[/tex] square Centimeter

Find the product. (6y − 2)2

Answers

Answer:

36y² - 24y + 4

Step-by-step explanation:

(6y - 2)² = (6y - 2)(6y - 2)

Each term in the second factor is multiplied by each term in the first factor, that is

6y(6y - 2) - 2(6y - 2) ← distribute both parenthesis

= 36y² - 12y - 12y + 4 ← collect like terms

= 36y² - 24y + 4

What is the tax on a $7.40 item if the sales-tax rate is 8%?

Answers

Answer:

$7.99

Step-by-step explanation:

7.4*0.08 = 0.592 (0.59)

7.4 + 0.59 = 7.99

Answer: I do not know so so so so sorry explanation: Sorry good luck

HELP ASAP I will mark brainliest Emmy is flying a drone in a field near her house. She placed the drone on the ground and used the controls to make it rise at a constant rate. Then, she kept the drone at the same altitude for a few minutes before bringing it back down to the ground at a constant rate. Which graph shows the drone's altitude over time ?

Answers

Answer:

It is the one on the bottom right

Step-by-step explanation:

First of all, we have to start at (0,0), so we can cross out the one on the top left and top right, as they does not.

Also, the one on the bottom right does not go back to the ground, though just stays in the air, but the one on the bottom right dows go back to the ground.

So, its the one on the bottom right

The team ratio of games won to games played was 2 to 7. If the team played 49 games, how many games did the team fail to win?

Answers

Answer:

they failed to win 35 games

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