What is the key to getting your message across?

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

2 years ago

Imagine that a small manufacturing company decides to invest in a materials resources planning (MRP) system. This is a computeri

klio [65]

The correct answer to this open question is the following.

Although there are no options attached, we can say the following,

The human resource functions that are likely to be affected by this change are Resource Management, Personal Data Management, Training, and Performance Management.

Human Resource Management helps the organization carry out this change successfully, explaining how these modifications can benefit the employees and the entire organization. HR has to use the proper means of internal communication to explain in advance the kinds of oof changes that are coming. This will prevent fear and anxiety, and eliminate rumors about the situation of the employees in the organization.

HR has to be careful in confirming that nobody is going to be fired by the arrival of new technologies. Then, HR has to explain in detail the many benefits in planning, scheduling, organizing, inventory, and many other benefits for each department. If employees do not feel threatened by this new technology they would welcome changes that allow them to do their work more productively.

5 0

2 years ago

Jung believed that dreams and "visions"

tatiyna

Answer:

The Correct Option is C.

Explanation:

Vision is which a person see something either having a heavenly perspective or in the person or individual mind. Whereas the dream is what the person or individual see when the person or individual is asleep.

So, Jung believed that the dreams and the vision is important or vital form of communications from another domain.

6 0

3 years ago

12-3. (Break-even point and selling price) Simple Metal Works, Inc. will manufacture and sell 300,000 units next year. Fixed cos

aev [14]

Answer:

Selling price= $5.08

Explanation:

Giving the following information:

Number of units= 300,000

Fixed costs= $350,000

Desired profit= $250,000

Variable cost rate= 0.65

First, we need to calculate the unitary contribution margin using the break-even point formula:

Break-even point in units= (fixed costs + desired profit)/ contribution margin per unit

300,000 = (350,000 + 250,000) / contribution margin per unit

300,000 contribution margin per unit = 600,000

contribution margin per unit= 600,000/300,000

contribution margin per unit= $2

If the variable cost rate is 0.65, then:

Unitary varaible cost= 2/0.65= $3.08

Selling price= contribution margin per unit - unitary varaible cost

Selling price= 2 - (-3.08)

Selling price= $5.08

5 0

2 years ago

Why do you think it will be important to stay flexible if your goals change as you get older?

Svetradugi [14.3K]

Answer:

You will feel stronger once you gain a bit of flexibility, simply because that flexibility gives you the range of motion to let your muscles work more efficiently. Maintaining flexibility will aid in muscle and joints health, which can keep older adults doing their favorite daily activities and remain independent.

6 0

2 years ago