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zvonat [6]
3 years ago
10

Insurance Premiums ~ Mona is interested in the relationship between the amount insurance companies pay out for automobile collis

ion claims and what they charge their customers in insurance premiums. Using data from 2014, she selects a random sample of 20 US states. For each state, she calculates the losses incurred by insurance companies per insured driver (Losses) and the average insurance premium for drivers (Premiums). The scatter plot and a summary of the data is given below. The correlation between Losses and Premiums was found to be r = 0.6065.
Round all calculated answers to 4 decimal places.
Variables Mean Sample SD
Losses 134.7425 25.9635
Premiums 895.132 171.8535
1. The relationship between Losses and Premiums is best described as ? (Positive/Negative) and ? (Linear/Nonlinear) .
2. Calculate the slope and intercept for the linear regression equation that predicts Premiums from Losses.Note: Do not use rounded values for intermediate calculations!
Slope:
Intercept:
3. What is the R^2 for this study’s linear regression model of Premiums from Losses?
4. Lisa is evaluating Mona’s work and discovers that her home state was not included in Mona’s sample. Lisa calculates the losses per insured driver for her state to be $254.78. Is it appropriate for Lisa to use Mona’s regression equation to estimate the insurance premium for her state?
(Yes/No) because
A. Lisa's value for Losses is within the range of the data Mona used to create the model.
B. Regression equations cannot be used to make predictions.
C. Mona's model is only valid for the states she used to create the model.
D. Lisa's value for Losses is not within the range of the data Mona used to create the model.
5. Lisa also decides to examine the residuals for Mona’s model to determine if the conditions for linear regression have been met. Which condition is Lisa checking with the following plot?
A. Lisa is checking to see if the residuals are nearly normal.
B. Lisa is checking to see if the data show a linear trend.
C. Lisa is checking to see if the variability of points around the least squares line is roughly constant.
Business
1 answer:
MrMuchimi3 years ago
7 0
B ///////////////////////////
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madam [21]

A salesperson should focus his or her sales resources on only one individual in the buying organization.

The statement is false.

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A salesperson should focus his or her sales resources on only one individual in the buying organization.

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3 0
2 years ago
On July 1 of last year, total employees at company E was decreased by 10 percent. Without any change in the salaries of the rema
babymother [125]

Answer:

The total of the combined salaries of all the employees at Company E after July 1 last year was 110% of that before July 1 last year.

Explanation:

If we use numbers, as example, we can get that:

Before July 1st Company E' s employes had in average salary of $100.000 (example).  

If, after the decreased of employees, average salary was 10% percent more, that means that:

  • $100.000 x 10%= <u>$10.000 </u>

So, total of combined salaries after decreased was

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$110.000 is the 110% of the average salary before decreased because:

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5 0
3 years ago
Reserves decrease if the Federal Reserve?a. raises the discount rate or auctions more credit. b. raises the discount rate but no
sweet-ann [11.9K]

Answer:

D. lowers the discount rate but not if it auctions more credit

Explanation:

Discount rate adjustment and Federal Reserve's auction have the following effects on reserves.

Discount rate adjustment: a <em>higher discount rate</em> will encourage investment in the US economy, thus leading to <em>increased reserves</em> as investment inflows increase.

On the other hand, a <em>lower discount rate</em> encourages investment outflow into other jurisdictions with higher yields, <em>thus reducing reserves</em>.

Auction: <em>auctioning more credit</em> will result in the movement of investment flows into the Federal Reserve (<em>an increase in reserves</em>) as investors invest in auctions. Vice versa.

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8 0
3 years ago
Why does the quantity a supplier is willing to give go up when the price goes up
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8 0
2 years ago
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The following information applies to the questions displayed below Over a four-year period, Jackie Corporation reported the foll
lawyer [7]

Answer:

1. Gross Profit ratio

2018 47%

2019 30%

2020 62%

2021 47%

2. Gross Profit ratio

2018 47%

2019 47%

2020 47%

2021 47%

Explanation:

1. Calculation for the gross profit ratio for each of the four years based on amounts originally reported.

2018 2019 2020 2021

Net sales $60,000 $66,000 $74,000 $90,000

Less Cost of goods sold $32,000 $46,000 $28,000 $48,000

=Gross profit$ 28,000 $20,000 $46,000 $42,000

Gross Profit ratio

2018 47% =$28,000/$60,000

2019 30% =$20,000/$66,000

2020 62% =$46,000/$74,000

2021 47% =$42,000/$90,000

2. Calculation for the gross profit ratio for each of the four years based on corrected amounts.

Cost of goods sold 2019=$46,000-$11,000

Cost of goods sold 2019=$35,000

Cost of goods sold 2020=$28,000+$11,000

Cost of goods sold 2020=$39,000

2018 2019 2020 2021

Net sales $60,000 $66,000 $74,000 $90,000

Less Cost of goods sold $32,000 $35,000 $39,000 $48,000

=Gross profit $28,000 $31,000 $35,000 $42,000

Gross Profit ratio

2018 47% =$28,000/$60,000

2019 47% =$31,000/$66,000

2020 47% =$35,000/$74,000

2021 47% =$42,000/$90,000

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3 years ago
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