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kotykmax [81]
2 years ago
8

The accounting at GEICO notices that the average claim might be larger than $1800, which was previously set as a true average cl

aim amount.
If the actual average is higher, the company will be loosing money in the long run. They ran domly select 45 claims, and calculate a sample mean of S1,920.

Suppose that the variance of claims is known to be equal to S1600.

(a) Set the significance level to α 0.05 and use the hypothesis testing to check if the average claim is larger than $1800.

(b) Find the probability of Type I error.

(c) Find the p-value corresponding to the given sample.
Mathematics
1 answer:
puteri [66]2 years ago
3 0

Answer:

I’m not really sure

Step-by-step explanation:

Look at someone else’s answer

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umka2103 [35]
2/9=0.222.....

it is alot closer to zero than any of ther other numbers
6 0
2 years ago
What is the slope in the equation y equals 8x - 10​
ikadub [295]

Answer:

8

Step-by-step explanation:

the formula is

y=mx+b

in this case the, m is 8, and the b is -10.

6 0
2 years ago
Write an equation in standard form that has a slope of 1/4 and crosses through the point (4, 3).
qaws [65]

slope intercept form

y -y1 = m(x-x1)

y-3 =1/4 (x-4)

distribute

y-3 =1/4 x-1

stand form of a line is Ax +by =c

so subtract 1/4 x from each side

y -3 -1/4 x =-1

add 3 to each side

y-1/4 x =2

-1/4 x +y =2

I would multiply by -4 on both sides to make the 1st term positive and get rid of the fraction

x -4y = -8


Find the slope of the line that crosses through the points (-3, -4) and (2, -3).

slope = (y2-y1)/(x2-x1)

m = (-3--4)/(2--3)

m = (-3+4)/(2+3)

m =(1/5)

m=1/5

8 0
3 years ago
The cafeteria uses 10 gallons of milk in 3 days.
Simora [160]

Answer:

                   cccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Step-by-step explanation:

cccccccccccccccccccccccccccccccccccccccccccccccccccc

8 0
3 years ago
Read 2 more answers
Mom baked a Dutch apple pie in a 9-inch pie pan. She cut the pie into 6 equal pies so that
Hatshy [7]

The area and arc length of each piece can be found using the

relationship between a circle and a sector of the circle.

Responses (b, c, and d are approximated):

a. 120°

b. 10.6 square inch

c. 28.3 in.

d. Area: 15.8 in.², Central angle: 89.1°

<h3>How can the pie pieces dimensions be evaluated?</h3>

Given:

Diameter of the pan, d = 9-inch

Number pie pieces cut from the apple pie = 6

The pie pieces are sectors of a circular pie.

a. The central angle of one pie pieces = \dfrac{360^{\circ}}{6} = 60°

Therefore;

  • The central angle of two pie pieces = 2 × 60° = <u>120°</u>

b. Area of circular pie = π·r²

Where;

r = \mathbf{\dfrac{d}{2}}

Therefore;

r = \dfrac{9}{2} = \mathbf{ 4.5}

The \ area \  covered  \ by \  each \  pie \  piece = \dfrac{\pi \times  4.5^2}{6} \approx  \mathbf{10.6}

  • The area covered by each pie piece is approximately <u>10.6 square inch</u>

c. The circumference of a circle = 2·π·r

The circumference of the original pie = 2 × π × 4.5 in. ≈ <u>28.3 in.</u>

d. Let the arc length of the pie piece = 7 inches

\mathbf{Area} \ of \ the \  \mathbf{pie \ piece}= \dfrac{7}{2 \cdot \pi \cdot 4.5}  \times \pi \times 4.5^2 =  \dfrac{7}{2 }  \times 4.5 = 15.75 \approx 15.8

  • The area of the pie piece is approximately <u>15.8 in.²</u>

<u />

<u />

<u />The \ central \ angle  \ of \ the \ pie \ piece = \dfrac{7}{2 \cdot \pi \cdot 4.5}  \times  360^{\circ} \approx \underline{ 89.1^{\circ}}

Learn more about circumference, area and sector of a circle here:

brainly.com/question/12985985

5 0
2 years ago
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