How fast does q 500 Hz wave travel if its wavelength is 0.5m

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

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Jasmine Carmichael has been called for jury duty. When Jasmine reports for jury duty, she is sent to a court room with others fo

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Answer:

a. Jasmine can be removed for cause.

Explanation:

Voir Dire is the questioning phase of jury selection in which the attorneys of both sides ask questions to see if the jury members are qualified.

When someone is removed for cause it means that the attorney thinks that the jury member can't be impartial based on bias or conflict.

In this case Jasmine can't be impartial because of her past relationship with the prosecutor.

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As she digs deeper into the data, Ophelia realizes that while discounters do have a high profit level, discounters are quite low

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Answer: Return on sales is calculated based on sales volume and not profit

Explanation:

This can be explained by understanding the scenario; the price that discounters pay is lower than any other channel. Discounters have high variable cost, they only pay $52 for the Russel with 41percent return on sales. They also larger fixed costs than the other channels and the return on sales is calculated based on sales volume and not profit.

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Style either or respect

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Waupaca Company establishes a $440 petty cash fund on September 9. On September 30, the fund shows $188 in cash along with recei

Simora [160]

Answer:

September 9, petty cash fund is established

Dr Petty cash 440

Cr Cash 440

September 30, petty cash fund expenses

Dr Merchandise inventory 44

Dr Postage expenses 54

Dr Miscellaneous office expenses 144

Dr Cash short and over 10

Cr Petty cash 252

September 30, petty cash fund reimbursement

Dr Petty cash 252

Cr Cash 252

October 1, petty cash fund increased to $485

Dr Petty cash 45

Cr Cash 45

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2 years ago