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Colt1911 [192]

Well you need an education to get a job and make money to survive, if you want to lets say work at a fast food place then you need to know math, and ALGEBRA to combine foods and stuff. If you want to be a reporter then you'll need to know English language arts. Basically you'll need an education for any job you get.

4 0

3 years ago

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

laiz [17]

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

6 0

3 years ago

Corey is the city sales manager for RIBS, a national fast food franchise. Every working day, Corey drives his car as follows: Mi

Inessa [10]

Answer:

b.46 miles

Explanation:

Calculation to determine Corey's reimburseable mileage

Corey's reimburseable mileage= 15 miles + 18 miles + 13 miles

Corey's reimburseable mileage = 46 miles

Therefore As a result, Corey's reimburseable mileage is 46 miles

8 0

3 years ago

How is the price elasticity of demand measured? A. by multiplying the percentage change in the product's price by the percenta

Lapatulllka [165]

Answer:

How is the price elasticity of demand measured?

c. by dividing the percentage change in the quantity demanded of a product by the percentage change in the product's price

Explanation:

Price elasticity of demand (PED or Ed) is a measure used in economics to show the responsiveness, or elasticity, of the quantity demanded of a good or service to a change in its price when nothing but the price changes. More precisely, it gives the percentage change in quantity demanded in response to a one percent change in price.

8 0

3 years ago

Read 2 more answers

Planning is often called the primary management function because _____________.

lesantik [10]

Planning is often called the primary management function because,

a. it establishes the basis for all the other things managers do

-Mabel <3

4 0

4 years ago