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Serga [27]
3 years ago
14

Yoonie is a personnel manager in a large corporation. each month she must review 16 of the employees. from past experience, she

has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours. let χ be the random variable representing the time it takes her to complete one review. assume χ is normally distributed. let 9 o be the random variable representing the mean time to complete the 16 reviews. assume that the 16 reviews represent a random set of reviews. 1. what is the mean, standard deviation, and sample size? 2. complete the distributions.
a. x ~ _____(_____,_____)
b. 9 o ~ _____(_____,_____)
Business
1 answer:
Inga [223]3 years ago
4 0

Answer:

Sample size is 16

Mean 4

Standard deviation of the sample is 0.3.

Explanation

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

In this problem, we have that:

The population has a mean of four hours, with a standard deviation of 1.2 hours. The sample is the 16 of the employees.

So

The sample size is 16, so n = 16

The mean of the sample is the same as the population mean, so \mu = 4.

The standard deviation of the sample is s = \frac{\sigma}{\sqrt{n}} = \frac{1.2}{4} = 0.3

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Answer:

Premium is an amount paid periodically to the insurer by the insured for covering his risk. Description: In an insurance contract, the risk is transferred from the insured to the insurer. For taking this risk, the insurer charges an amount called the premium.

Explanation:

a

5 0
3 years ago
The Allowance for Bad Debts has a credit balance of $ 9 comma 500 before the adjusting entry for bad debts expense. After analyz
Natali5045456 [20]

Answer:

$5,500

Explanation:

When a company makes sales on account, debit accounts receivable and credit sales. Based on assessment, some or all of the receivables may be uncollectible.  

To account for this, debit bad debit expense and credit allowance for doubtful debt. Should the debt become uncollectible (i.e go bad), debit allowance for doubtful debt and credit accounts receivable.

Adjustments to allowance required

= $15,000 - $9,500

= $5,500

The entries to be posted are

Debit Bad debt $5,500

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6 0
3 years ago
Lang Co. issued bonds with detachable common stock warrants. Only the warrants had a known market value. The sum of the fair val
12345 [234]

Answer: discount on bonds payable

Explanation:

Based on the information given, since the sum of the fair value of the warrants and the face amount of the bonds exceeds the cash proceeds, then the excess will be reported as the discount on bonds payable.

The discount on the bonds payable occurs in a scenario whereby the bonds are issued for a lesser amount than their face or their maturity amount.

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6 0
2 years ago
A company's product sells at $12 per unit and has a $5 per unit variable cost. The company's total fixed costs are $98,000. The
lara31 [8.8K]

Answer:

The contribution margin per unit is $7

Explanation:

The contribution margin per unit can be defined as the difference between the selling price per unit and the variable cost per unit.

Contribution margin per unit = Selling price - Variable cost

Contribution margin per unit = $12 - $5

Contribution margin per unit = $7

The contribution margin per unit is $7

6 0
3 years ago
It usually takes less time to buy a six-pack of Pepsi, a loaf of bread, and a bag of potato chips at a small convenience store (
dybincka [34]

Answer:

The correct answer is the option A: a person with a high opportunity cost of time.

Explanation:

To begin with, the opportunity cost of something is what the person sacrificies in order to be doing that thing. Therefore that when we talk about the opportunity cost of time it refers to what the person sacrificies in order to do something with that time. If the person has a high opportunity cost of time then the sacrificies that he made with that time will be higher than other person that has a low opportunity cost of time, meaning that the time spent by that person is less important than to the one that has a lot of time to spare.  

6 0
3 years ago
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