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3 years ago

The Centers for Disease Control and Prevention (CDC) defines a healthy sleep duration

1 answer:

6 0

a. The point estimate of the married people that sleep well is = 0.6299. The confidence interval for the mean hours of sleep for those that have never been married but report good sleep is 0.6186, 0.6412

b. The point estimate of the number of hours for people that have never been married = 7.2257

95% confidence interval for the mean number of hours of sleep for those who have never been married = 7.2065, 7.2447

c. the estimated number of sleep for those that have never been married = 7.729 hours

a. The point estimate

$P=\frac{Xp}{n}$

$Xp = successes\\n = sample size\\$

Those who have never been married n = 7044

Xp = those who sleep for 7 hours at least

To get Xp, the excel function

Countif(range, criteria)

Countif(A:A, >=7)

This gives Xp = 4437

Point estimate =

$\frac{4477}{7044}$

= 0.6299

The point estimate of the married people that sleep well is = 0.6299

At 95% interval of confidence,

α = 1-0.95 = 0.05

α/2 = 0.05/2 = 0.025

Z0.025 = 1.96 ( Use the standard probability normal table)

Margin of Error

= $M.E = 1.96\sqrt \frac{0.6299(1-0.6299)}{7044} \\\\= 1.96\sqrt{0.000033} \\\\1.96*0.0057$

= 0.0113

The 95% confidence interval

= 0.6299 - 0.0113 , 0.6299 + 0.0113

= 0.6186, 0.6412

The confidence interval for the mean hours of sleep for those that have never been married is 0.6186, 0.6412

b. Sample mean

x = ∑x/n

x = number of sleep of the never been married

Mean is calculated using excel function

Average(range)

Average(a:a)

This gives the sample mean = 7.2257

The point estimate of the number of hours for people that have never been married = 7.2257

Standard deviation using excel =

Stdev(A:A) = 0.8211

$Margin of error =1.96*\frac{0.8211}{\sqrt{7044} }$

= 0.0192

The confidence interval =

= 7.2257-0.0192, 7.2257+0.0192

= 7.2065, 7.2447

95% confidence interval for the mean number of hours of sleep for those who have never been married = 7.2065, 7.2447

c. From the available data, the mean number of sleep per day that is gotten from the 4437 people that are unmarried and sleep healthily for at least 7 hours = 34295.1

Mean = 34295.1/4437

= 7.729

the estimated number of sleep for those that have never been married = 7.729 hours

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One way that criminal law differs from civil law is that it: provides remedies for violations of private rights. must yield a un

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Answer:

Criminal law "must must yield a unanimous verdict."

Explanation:

Civil law refers to a body of law protecting individual rights. It handles disagreement between people, or organizations.

Criminal law deals with crimes commited against the state or federal government by an individual who breaks a criminal law.

Most civil cases don't make it to trial and are settled outside the courts.

A criminal case on the other hand, requires a unanimous verdict from the jury and sentencing by the judge. Anyone who commits a crime is at the mercy of the court.

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3 years ago

Exercise 8-7 At December 31, 2018, Concord Corporation Company had a credit balance of $18,800 in Allowance for Doubtful Account

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Answer:

Dr Allowance $13,500

Cr Accounts Recivable $13,500

Dr Accounts Recivable $3,500

Cr Allow ance $3,500

Dr Cash $3,500

Cr Accounts Rec $3,500

Dr Bad Debts Expense $21,900

Cr Allowance $21,900

Explanation:

Preparation of the journal entries to record the 2019 transactions of Concord Corporation Company

Dr Allowance $13,500

Cr Accounts Recivable $13,500

(To record amount written off)

Dr Accounts Recivable $3,500

Cr Allow ance $3,500

(To reverse write-off)

Dr Cash $3,500

Cr Accounts Rec $3,500

(To record collection of writeoff)

Dr Bad Debts Expense $21,900

Cr Allowance $21,900

[$30,700-($18,800-$13,500+$3,500)]

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2 years ago

ValentinkaMS [17]

Answer:

B.enables production to be ahead of demand.

Explanation:

One of the benefits of a wholesale warehouse in the chain of distribution is that it enables production to be ahead of demand.

A warehouse generally represents a large house where goods/products are kept prior to their distribution for sale.

The use of a warehouse offers several advantages to producers. These include:

adequate protection and preservation of products
regular flow of goods irrespective of their period of production
continuity in the production process in order to stay ahead of market demand
easy handling of products
etc.

Hence, the correct option is B.

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3 years ago

Neal joins Filestene Inc. as an executive designer. The HR manager informs him that he will have to join the labor union within

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Answer: (E) Union shop

Explanation:

The union shop arrangement is refers to the process in which we require the number of workers for join and also participate in the specific union and it is also called as the post entry or the closed shop.

The workers or the union representatives also providing the various types of benefits in the specific time period. Depending on the different protection level the trade unions are varying nation to nations.

According to the given question, the Neal's human resource manager is basically referring to the union ship that is related to the union membership.

Therefore, Option (E) is correct answer.

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3 years ago

Ms. Towne is buying a home for $250,000 and is putting down 20% cash on the purchase. She is financing the rest with a 30-yr, fi

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Answer:

$180

Explanation:

the monthly payment = principal / annuity factor

principal = $250,000 x 80% = $200,000
PV annuity factor, 360 periods, 0.38542%= 194.4995527

monthly payment = $200,000 / 194.4995527 = $1,028.28

in total, you will pay $1,028.28 x 360 = $370,180.80, so total interests = $370,180.80 - $200,000 = $170,180.80

the biweekly payment = principal / annuity factor

principal = $250,000 x 80% = $200,000
PV annuity factor, 780 periods, 0.178%= 421.62071

monthly payment = $200,000 / 421.62071 = $474.36

in total, you will pay $474.36 x 780 = $370,000.80, so total interests = $370,000.80 - $200,000 = $170,000.80

During the 30 year period, you will be able to save $170,180.80 - $170,000.80 = $180 in interests

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3 years ago