Best Electronics offers a “no hassle” returns policy. The number of items returned per day follows the normal distribution. The mean number of customer returns is 9.6 per day and the standard deviation is 2.30 per day. Refer to the table in Appendix B.1.  

a. In what percentage of the days 6 or fewer customers returning items? (Round z-score computation to 2 decimal places and the final answer to 2 decimal places.)

Percentage            %

b. In what percentage of the days between 12 and 15 customers returning items? (Round z-score computation to 2 decimal places and the final answer to 2 decimal places.)

Percentage            %

c. Is there any chance of a day with no returns?

(Click to select)  

Both Bond Sam and Bond Dave have 8 percent coupons, make semiannual payments, and are priced at par value. Bond Sam has 4 years to maturity, whereas Bond Dave has 14 years to maturity.

If interest rates suddenly rise by 3 percent, what is the percentage change in the price of Bond Sam?

Both Bond Sam and Bond Dave have 8 percent coupons, make semiannual payments, and are priced at par value. Bond Sam has 4 years to maturity, whereas Bond Dave has 15 years to maturity.

If interest rates suddenly rise by 5 percent, what is the percentage change in the price of Bond Sam?

If interest rates suddenly rise by 5 percent, what is the percentage change in the price of Bond Dave?

If rates were to suddenly fall by 5 percent instead, what would the percentage change in the price of Bond Sam be then?

If rates were to suddenly fall by 5 percent instead, what would the percentage change in the price of Bond Dave be then?

1) SAT Test Required Scores The scores for males on the math portion of the SAT I test are normally distributed with a mean of 531 and a standard deviation of 114(based on data from the college board). If the college of Florida includes a minimum score 600 among its requirement what percentage of males do not satisfy that requirement?

2)Finding Percentage of fever temperatures Based on the sample results in Data Set 6 in Appendix B, assume that human body temperatures are normally distributed with a mean of 98.20°F and a standard deviation of 0.62°F . Bellevue Hospital in New York City uses 100.6°F as the lowest temperature considered to be a fever. What percentage of normal and healthy persons would be considered to have a fever? Does this percentage suggest that a cutoff of 100.6°F is appropriate?

3) finding percentage of Pepsi cans under 12oz can of regular Pepsi are labaled as containing 12 oz. Assume that the actual contents are normally distributed with a mean of 12.29oz and a Standard deviation of 0.09oz(based on data set 1 in appendix b) what percentage of cans obtain less than the 12oz printed on the label? are many consumers being cheated?

A survey found that​ women's heights are normally distributed with mean 63.5in and standard deviation2.2 in. A branch of the military requires​ women's heights to be between 58 in and 80 in.

a. Find the percentage of women meeting the height requirement. Are many women being denied the opportunity to join this branch of the military because they are too short or too​ tall?

b. If this branch of the military changes the height requirements so that all women are eligible except the shortest​ 1% and the tallest​ 2%, what are the new height​ requirements?

a. The percentage of women who meet the height requirement is ___________​%. ​(Round to two decimal places as​ needed.)

Are many women being denied the opportunity to join this branch of the military because they are too short or too​ tall?

A.​Yes, because a large percentage of women are not allowed to join this branch of the military because of their height.

B.​No, because only a small percentage of women are not allowed to join this branch of the military because of their height.

C.​Yes, because the percentage of women who meet the height requirement is fairly large.

D.​No, because the percentage of women who meet the height requirement is fairly small.

b. For the new height​ requirements, this branch of the military requires​ women's heights to be at least _____ in and at most in. (Round to one decimal place as​ needed.)

A newly issued bond has a maturity of 10 years and pays a 8.0% coupon rate (with coupon payments coming once annually). The bond sells at par value.

A.) What are the convexity and the duration of the bond? Use the formula for convexity in footnote 7. (Round your answers to 3 decimal places.)

Convexity ______

Duration _________ years

B.) Find the actual price of the bond assuming that its yield to maturity immediately increases from 8.0% to 9.0% (with maturity still 10 years). Assume a par value of 100. (Round your answer to 2 decimal places.)

Actual Price of The Bond _____________

C.)What price would be predicted by the modified duration rule ΔP/P=−D*Δy? What is the percentage error of that rule? (Negative answers should be indicated by a minus sign. Round your answers to 2 decimal places.)

Percentage Change Price ________

Percentage error __________

D.) What price would be predicted by the modified duration-with-convexity rule ΔP/P=−D*Δy⁢+0.5 ×Convexity×(Δy)^2? What is the percentage error of that rule? (Negative answers should be indicated by a minus sign. Round your answers to 2 decimal places.)

Percentage Change Price ________

Percentage error __________

A survey found that​ women's heights are normally distributed with mean 63.9 in and standard deviation 2.4 in. A branch of the military requires​ women's heights to be between 58 in and 80 in. a. Find the percentage of women meeting the height requirement. Are many women being denied the opportunity to join this branch of the military because they are too short or too​ tall? b. If this branch of the military changes the height requirements so that all women are eligible except the shortest​ 1% and the tallest​ 2%, what are the new height​ requirements? a. The percentage of women who meet the height requirement is: ……... ​(Round to two decimal places as​ needed.) Are many women being denied the opportunity to join this branch of the military because they are too short or too​ tall? A. No, because the percentage of women who meet the height requirement is fairly small. B. ​Yes, because the percentage of women who meet the height requirement is fairly large. C. No, because only a small percentage of women are not allowed to join this branch of the military because of their height. D. Yes, because a large percentage of women are not allowed to join this branch of the military because of their height. b. For the new height​ requirements, this branch of the military requires​ women's heights to be at least...…...in and at most …...in. ​(Round to one decimal place as​ needed.

Which of the following is true for monopoly?

Question 41 options:

The marginal revenue curve lies above the demand curve

The marginal revenue curve lies below the demand curve.

Economic profits are zero in the long-run.

Marginal revenue equals price.

Price elasticity of demand is defined as

Question 47 options:

The percentage change in quantity demanded divided by the percentage change in price.

The percentage change in price divided by the change in quantity demanded

The percentage change in price divided by the percentage change in quantity demanded.

The change in quantity demanded divided by the percentage change in price

When Marginal utility diminishes, total utility:

Question 48 options:

Increases at a diminishing rate

Diminishes

Stays constant

Increases

Question 49 (4 points)
If consumer incomes go up and laundromats are an inferior good, the effect on the demand for laundromats, ceteris paribus, will be a (an):

Question 49 options:

decrease in the quantity demanded of laundromats

increase in the demand for laundromats

increase in the quantity demanded of laundromats

decrease in the demand for laundromats

A characteristic of an oligopoly is:

Question 50 options:

Few firms exhibiting mutual interdependence

Many firms with independent pricing decisions.

Single firm with control over price.

None of the above.