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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 and Explanation:

The Journal entry is shown below:-

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(Being Cash in exchange of common stock is recorded)

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(Being  service revenue is recorded)

6. Cash Dr,                              $1,015

           To Unearned revenue       $1,015

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(Being cash is recorded)

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          To Cash                                  $2,176

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3 0
3 years ago
What would sell more (both stores are just now opening.): a "in-trend" jewelry store or a Simplistic lip gloss shop?
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The lip gloss shop

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Because a trend last for a short amount of time meaning you have to restock on so many new products all the time wasting more and more money, as to the lip glosses all colors can be sold or always be in style.

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Bezzdna [24]

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dimension of people’s economic (or material) well-being, alongside income and

consumption. There are other concepts of capital that are important to people’s well-being

and complement the concept of economic capital, such as human capital, social capital

and collectively-held assets. However, while they may have considerable economic value to

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Information on household wealth is important at both the macro and micro levels.

Wealth is one of the key components of the economic system. It is a source of finance for

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macro and micro levels, household wealth statistics play a vital role in informing responses

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8 0
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Answer:

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8 0
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