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Sliva [168]
3 years ago
9

Jessica Salas, president of Salas Products, is reviewing the warranty policy for her company's new model of automobile batteries

. Life tests performed on a sample of 100 batteries indicated: (1) an average life of 75 months, (2) a standard deviation of 5 months, and (3) battery life is approximately normally distributed. Approximately 95% of the batteries will last between:______
a. 70 and 80 months
b. 60 and 90 months
c. 65 and 85 months
d. 55 and 95 months
Business
1 answer:
frez [133]3 years ago
3 0

Answer:

c. 65 and 85 months

Explanation:

Life tests performed on a sample of 100 batteries indicated:

(1) an average life of 75 months,

(2) a standard deviation of 5 months, and

(3) battery life is approximately normally distributed.

We create a 95% CI around mean.

If 95% is in the middle, then 5% is in the ends, 2.5% in each end.

Z score at .025 is -1.96, z score at .975 is +1.96

To convert z to battery life:

Z*sd + mean = battery life

-1.96*5 + 75 = 65.2, rounds to 65

+1.96*5 + 75 = 84.8, rounds to 85

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Answer:

Customer service

Explanation:

Customer service is simply the act of meeting a customer's needs. This involves providing professional, informative, pre-service and post-service opportunities among other things to ensure that the customer is satisfied and also ensuring the employees are delivering company products and other things to the public.

Cheers.  

4 0
3 years ago
Which of the following is true of open market operations? Select the correct answer below: Open market operations involves the b
zhenek [66]

Answer:

The option that says; "Open market operations involve the purchase and sale of government securities".

Explanation:

The term "open market operation" simply has to do with monetary policy. Open market operation is usually considered as a tool in economics and It is a commonly used by central banks of countries or federal reserves.

The main thing that happens in open market operation is that Government securities are being bought and sold that is the purchase and sale of government securities. The selling and buying of government securities is to make sure that there is reduction in the way money is been supplied.

3 0
3 years ago
Read 2 more answers
A corporation issued $600,000, 10%, 5-year bonds on January 1, 2017 for $648,666, which reflects an effective-interest rate of 7
VashaNatasha [74]

Answer:

correct option is a. $617,911

Explanation:

given data

issued = $600,000

rate = 10 %

time 5 year

amount  = $648,666

effective-interest rate =  7%

solution

we get here carrying value so first we get here Interest paid per semiannual period that is

Interest paid per semiannual period = $600000 ×10% × \frac{6}{12}  

Interest paid per semiannual period = $30000

and

Interest expense on 30 June = $648666 × 7% × \frac{6}{12}  

Interest expense on 30 June = $22703

and

Interest expense on 30 December = $641369 × 7% × \frac{6}{12}  

Interest expense on 30 December = $22448

so

Interest expense on 30 June  = ($641369 - $7552) × 7% × \frac{6}{12}  

Interest expense on 30 June = $22184

and

Interest expense on 30 December = ($633817 - $7816) × 7% × \frac{6}{12}  

Interest expense on 30 December = $21910

so as that we get Carrying value of 1st January that is

Carrying value of January 1 =  $633817  - $7816-8090

Carrying value of January 1 = 617911

so correct option is a. $617,911

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Answer: 300 Credit

Explanation:

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