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
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

You might be interested in
Members of mid-south petroleum distributors, a trade group, had trouble obtaining affordable pollution liability insurance. the
seraphim [82]

The answer to the question is risk retention group.

Risk retention group is a state-chartered insurance company that insures commercial businesses and government entities against liability risks. This type of insurance is different from traditional insurance companies because they are exempted from state laws that regulate insurance and do not have to obtain a state license for every state in which it operates from.

4 0
3 years ago
List 2 advantages and 2 disadvantages of budgeting.
likoan [24]
<h3>Two advantages of budgeting;</h3>

i. Manage your money effectively.

ii. Monitor performance.

<h3 /><h3 /><h3>Two disadvantages of budgeting;</h3>

i. Time required.

ii. Gaming the system.

iii. Blame of outcomes.

7 0
2 years ago
A savings account earns 8.4% (APR) interest calculated monthly, paid into the account at the end of 6 months. Cooper deposits $2
anzhelika [568]
Ive done it 4 defferent ways it keeps saying $50.40
5 0
3 years ago
Josh purchased 100 shares of XOM for $76.63 per share at the beginning of 2007. He received dividends per share of $1.37 (2007),
never [62]

Answer:

The IRR is 4.08%

Explanation:

In calculating the internal rate of return in excel,the cash outflow of $76.63 is shown in year 0 with a negative sign to indicate that it is the initial investment on the share, followed by dividends in received in later years shown as positive figures ,however in the fifth the dividend received and the cash received from disposing of the share were added together to show total cash inflow in the last year.

The computation of IRR is shown below

IRR for the share purchase  

 

Years Cash flow

0 -76.63

1 1.37

2 1.55

3 1.66

4 1.74

5 86.61  

IRR 4.08%

Find attached for detailed computation.

Download xlsx
4 0
3 years ago
Darwin Inc. sells a particular textbook for $20. Variable expenses are $14 per book. At the current volume of 50,000 books sold
Ksenya-84 [330]

Answer:

Fixed costs= $300,000

Explanation:

Giving the following information:

Selling price per unit= $20

Variable expenses= $14

Break-even point in units= 50,000

<u>To calculate the fixed costs, we need to use the following formula:</u>

Break-even point in units= fixed costs/ contribution margin per unit

50,000= fixed costs / (20 - 14)

50,000*6= fixed costs

Fixed costs= $300,000

7 0
3 years ago
Other questions:
  • If a check correctly written and paid by the bank for $936 is incorrectly recorded in the company's books for $963, how should t
    9·1 answer
  • Which of the following scenarios are either not accounted for or measured inaccurately by either the income or the expenditure m
    6·1 answer
  • (a) On March 2, Shamrock Company sold $897,900 of merchandise to Pharoah Company on account, terms 2/10, n/30. The cost of the m
    7·1 answer
  • Q 7.5: a small business owner has two employees but each employee has a separate cash register drawer. this situation can be vie
    8·1 answer
  • 06.06 segment exam A period of economic stability began in the 1980s. In 2001, prices began to increase. In 2007, an economic cr
    6·1 answer
  • Alex works as a customer service representative at an insurance company. Before starting his shift, Alex reviews issues from his
    5·2 answers
  • According the kinked demand curve model:
    9·1 answer
  • I have a question about my asignment. everyone help me pls.
    6·1 answer
  • A student wants to have $30,000 at graduation 4 years from now to buy a new car. His grandfather gave him $10,000 as a high scho
    11·1 answer
  • bombeck inc. has the following transactions during august of the current year. aug. 1: opens an office as a financial advisor, i
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!