MIS 570-DQ 2

The mean cost of domestic airfares in the United States rose to an all-time high of $395 per ticket. Airfares were based on the total ticket value, which consisted of the price charged by the airlines plus any additional taxes and fees. Assume domestic airfares are normally distributed with a standard deviation of $115. Use Table 1 in Appendix B. a.  What is the probability that a domestic airfare is $540 or more (to 4 decimals)? b.  What is the probability that a domestic airfare is $240 or less (to 4 decimals)? c.  What if the probability that a domestic airfare is between $300 and $490 (to 4 decimals)? d.  What is the cost for the 5% highest domestic airfares? (rounded to nearest dollar)

The mean cost of domestic airfares in the United States rose to an all-time high of $375 per bicket. Airfares were based on the total ticket value, which consisted of the price charged by the airlines plus any additional taxes and fees. Assume domestic airfares are normally distributed with a standard deviation of $105. Use Table 1 in Appendix B. a. What is the probability that a domestic airfare is $530 or more (to 4 decimals)? b. What is the probability that a domestic airfare is $265 or less (to 4 decimals)? c. What if the probability that a domestic airfare is between $320 and $510 (to 4 decimals)? d. What is the cost for the 3% highest domestic airfares? (rounded to nearest dollar) or Select your answer

Suppose that the dividends of dividend-paying stocks are normally distributed with a mean of 3.86% (as a percentage of the share price) and a standard deviation of 1.25%. In a sample of 55 dividend-paying stocks, what is the probability that the average dividend will be 3.70% or more? (please round your answer to 4 decimal places)

Suppose the profit a Honda dealership makes on the next 5 Accords it sells are:504, 1,027, 867, 1,434, 1,372. Calculate the standard deviation of the sample. (please express your answer using 2 decimal places).

A pension fund manager is considering three mutual funds. The first is a stock fund, the second is a long-term government and corporate bond, and the third is a T-bill money market fund that yields a rate of 8%. The mean and the standard deviation of the risky funds is as follows:   Expected Return Standard Deviation Stock fund (S) 20% 30% Bond fund (B) 12% 15% The correlation between the fund returns is 0.10. Your client’s degree of risk aversion is A = 3.5. Given the utility function: U = E(r) - 1/2 A Sigma^2 What proportion, y, of the total investment should be invested in the tangency portfolio so that your client can maximize his/her expected utility? What is the expected value and standard deviation of the rate of return on your client’s optimized portfolio?

GIL internet services record customer usage patterns. Historically they have found the duration of an internet session is normally distributed with an average duration of 77.5 minutes and a standard deviation of 20.6 minutes.  What is the probability a randomly selected session would last longer than two hours or less than thirty-five minutes? (4 decimal places)

Only question #1. Little stuck.

i need the answer quickly

You may need to use the appropriate appendix table to answer this question. Suppose that the mean daily viewing time of television is 8.35 hours. Use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household (a) What is the probability that a household views television between 5 and 12 hours a day? (Round your answer to four decimal places.) (b) How many hours of television viewing must a household have in order to be in the top 2% of al television viewing households? (Round your answer to two decimal places.) hrs (c) What is the probability that a household views television more than 3 hours a day? (Round your answer to four decimal places.)

a. A company produces lightbulbs whose life follows a normal distribution, with mean 1200 hours and standard deviation 250 hours. If we choose a lightbulb at random, what is the probability that its lifetime will be between 900 and 1300 hours? (answer in three decimal places)

Suppose commute times in a large city are normally distributed and that 65.20% of commuters in this city take more than 22 minutes to commute one-way. If the standard deviation of such commutes is 6.5 minutes, what is the mean commute?

If the economy booms, Meyer&Co. stock will have a return of 20.8 percent. If the economy goes into a recession, the stock will have a loss of 13.1 percent. The probability of a boom is 63 percent while the probability of a recession is 37 percent. What is the standard deviation of the returns on the stock?   9.29%   12.43%   13.56%   14.61%   14.61%

Home prices in a particular neighborhood average $350k with a standard deviation of $30k. They are not Normally distributed. Your realtor pulls a random sample of 30 houses for you to look at. What is the probability that the average price of these 30 houses is more than $345k? (Please round your answer to 3 decimal places: ex, 0.123)

The following table provides a probability distribution for the random variable x. Excel File: data05-15.xlsx f(x) 3 0.25 0.50 0.25 a. Compute E(x) , the expected value of x. b. Compute o 2, the variance of x (to 1 decimal). c. Compute o, the standard deviation of x (to 2 decimals).

M12

A consultant is beginning work on three projects. The expected profits from these projects are $50,000, $72,000, and $40,000. The associated standard deviations are $10,000, $12,000, and $9,000. Assuming independence of outcomes, find the mean and standard deviation of the consultant’s total profit from these three projects.

The owner of Tastee Cookies needs to decide whether to lease a small, medium, or large new retail outlet. She estimates that monthly profits will vary with demand for her cookies as follows:  SIZE OFOUTLET DEMAND LOW HIGH Small $ 1,000     1,000   Medium   500     2,500   Large   0     3,000      For what range of probability that demand will be high, will she decide to lease the medium facility?

According to AAA, the price of a gallon of regular, unleaded gas across gas stations in North Carolina is normally distributed with a mean of $2.39 and a standard deviation of $0.15. What is the probability that the price is between $2.30 and $2.60 per gallon? 0.27 O 0.64 0.89 0.74

Assume that the traffic to the web site of Smiley's People, Inc., which sells customized T-shirts, follows a normal distribution, with a mean of 4.48 million visitors per day and a standard deviation of 900,000 visitors per day. (a) What is the probability that the web site has fewer than 5 million visitors in a single day? If needed, round your answer to four decimal digits, (b) What is the probability that the web site has 3 million or more visitors in a single day? If needed, round your answer to four decimal digits. (e) What is the probability that the web site has between 3 million and 4 million visitors in a single day? If needed, round your answer to four decimal digits. (d) Assume that 85% of the time, the Smiley's People web servers can handle the daily web traffic volume without purchasing additional server capacity. What is the amount of we traffic that will require Smiley's People to purchase additional server capacity? If needed, round your answer to two decimal digits.…

Consider a very large number of students taking a college entrance exam such as the SAT. And suppose the mean score on the mathematics section of the SAT is 570 with a standard deviation of 40.a. Find the z-score for a student who scored 600.b. A student is told that his z-score on this test is -1.5. What was his actual SAT math score?

Beer bottles are filled so that they contain an average of 330 ml of beer in each bottle. The amount of beer in a bottle is normally distributed with a standard deviation of  2.9  ml. 21 What is the probability that a randomly selected 6-pack of beer will have a mean amount in 6 bottles less than 328ml?                       a 0.0292                   b 0.0365                   c 0.0456                   d 0.0570

A large number of MBA applicants are given an aptitude test. Scores are normally distributed with a mean of 460 and standard deviation of 80. What is the probability a randomly chosen applicant scores 600 or above in this test? a. 0.5401 b. 0.0401 c. 0.4599 d. 0.0852

Question 21 On the average, the amount of money that a customer spends in the store is $40 with a standard deviation $1O. The probability that the total spending of 4 customers in the store is over $170 is closest to 0.1543 0.3085 0.2376 O 0.4013 not able to calculate

According to a 2017 Wired magazine article, 40% of e-mails that are received are tracked using software that can tell the e-mail sender when, where, and on what type of device the e-mail was opened (Wired magazine website). Suppose we randomly select 50 received e-mails. a. What is the expected number of these e-mails that are tracked? b. What are the variance (to the nearest whole number) and standard deviation (to 3 decimals) for the number of these e-mails that are tracked? Variance Standard deviation

Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts, follows a normal distribution, with a mean of 4.48 million visitors per day and a standard deviation of 800,000 visitors per day.   (a) What is the probability that the web site has fewer than 5 million visitors in a single day? If needed, round your answer to four decimal digits.     (b) What is the probability that the web site has 3 million or more visitors in a single day? If needed, round your answer to four decimal digits.     (c) What is the probability that the web site has between 3 million and 4 million visitors in a single day? If needed, round your answer to four decimal digits.     (d) Assume that 85% of the time, the Smiley’s People web servers can handle the daily web traffic volume without purchasing additional server capacity. What is the amount of web traffic that will require Smiley’s People to purchase additional server capacity? If needed, round your…

A car salesperson estimates the following probabilities for the number of cars that she will sell in the next week: Number of cars       0         1          2        3         4         5 Probability            0.10    0.20    0.35    0.16    0.12    0.07 a. Find the expected number of cars that will be sold in the week.b. Find the standard deviation of the number of cars hat will be sold in the week. c. The salesperson receives a salary of $250 for the week, plus an additional $300 for each car sold. Find the mean and standard deviation of her total salary for the week. d. What is the probability that the salesperson’s salary for the week will be more than $1,000?

The 2018 statistics shows that the average life expectancy of females in Canada has risen to 83.9 years. Assuming the standard 1 deviation of their life expectancy was 7.4 yoars, determine the minimum percentage of females in Canada whose life expectancy was between 75.02 and 92.78 years. Type your numerical answer here. Numbers only

using 'standard Normal Table ' , calculate the following probabilities. 1. Pr(z < -1.12) 2. Pr(z >2.32) 3.pr(1.22 < z >2.53) 4.pr(-3.22 < z < 0.22) 5.pr(-2.36 < z < -0.50)

An operation manager at an electronics company wants to test their amplifiers. The design engineer claims they have a mean output of 364 watts with a standard deviation of 12 watts. What is the probability that the mean amplifier output would be greater than 364.8 watts in a sample of 52 amplifiers if the claim is true? Round your answer to four decimal places.