1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kotykmax [81]
3 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]3 years ago
3 0

Answer:

I’m not really sure

Step-by-step explanation:

Look at someone else’s answer

You might be interested in
Jonah is purchasing a car that is on sale for 15% off. He knows the function that represents the sale price of his car is c(p) =
svetoff [14.1K]
I agree that the answer is letter B :)
5 0
3 years ago
Read 2 more answers
How do you solve this step by step?
andrew11 [14]

Answer:

x = -1

Step-by-step explanation:

since the 23 is positive you have to subtract it on both sides . which would give you -4x =4

then divide -4 on each side and you should get x = -1

a positive divided by a negative is always negative.

7 0
3 years ago
From A to B a private plane flies 2.8 hours at 110 mph on a bearing of 64 degrees . It turns at point B and continues another 1.
Firdavs [7]

Answer:

a. 360.323 m

b. 95.265^{o}

Step-by-step explanation:

Distance covered from A to B = speed x time

                                                 = 110 x 2.8

                                                 = 308 m

Distance covered from B to C = speed x time

                                                  = 110 x 1.7

                                                  = 187 m

The sum of angles at B = 64^{o} + 26^{o}

                                       = 90^{o}

a. The distance of the plane from it starting point to C can be determined by applying the cosine rule.

b^{2} = a^{2} + c^{2} - 2ac Cos B

Sot hat;

b^{2} = 187^{2} + 308^{2} - 2(187 x 308) Cos 90^{o}

But, Cos 90^{o} = 0

So that,

b^{2} = 187^{2} + 308^{2}

  = 34969 + 94864

  = 129833

b = \sqrt{129833}

  = 360.323

The distance from A to C is 360.323 m.

b. Applying the sine rule;

\frac{a}{SinA} = \frac{b}{SinB}

\frac{187}{SinA} = \frac{360.323}{Sin90^{o} }

\frac{187}{SinA} = \frac{360.323}{1}

Sin A = \frac{187}{360.323}

         = 0.5190

⇒ A = Sin^{-1} 0.5190

       = 31.265^{o}

The bearing of the plane from its original location = 64^{o} + 31.265^{o}

                                                     = 95.265^{o}

8 0
3 years ago
15 cm<br> 8 cm<br> 6 cm<br> Find the area
DaniilM [7]

Answer:

The answer is 720

Step-by-step explanation:

15*8*6=720

Hope this helps!!

5 0
3 years ago
Find the difference.<br>(2n - 9) - 5(-2.4n + 4) =​
MArishka [77]

Answer:

14n - 29

Step-by-step explanation:

First you'd distribute in the parentheses by -5. -5 × -2.4n and -5 × 4 which you would get 12 and -20.

Then, bring everything down and combine like terms. 2n + 12n = 14n || -9 - 20 or -9 - (-20) = -29. 14n - 29 is the lowest you can simplify because you can subtract a variable and a constant together.

5 0
3 years ago
Other questions:
  • A drawer contains white socks and black socks only.
    12·1 answer
  • There are 1,044 apartments in Baldwin County this year, which is approximately an 8.1% increase from last
    5·1 answer
  • If RQRS is a parallelogram with two adjacent congruent sides then____
    10·1 answer
  • Answer &amp; explanation please..30 points?​
    6·1 answer
  • Someone PLSSSSSS help im timed
    15·2 answers
  • Help.
    7·2 answers
  • Which expressions have products less than 3 3/5?<br> (Select all that apply)
    12·1 answer
  • Tell the measure of the angle in degrees 50/360
    5·1 answer
  • 5/8 divided by 7/10 for the lowest fraction
    9·2 answers
  • The ladder is placed against the wall. The foot of the ladder is 3 feet away from the wall and the top of the ladder hits the wa
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!