A mechanic installs automobile tires on a first-come first-serve basis. The total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. What is the probability that a randomly selected customer will wait between 80 and 95 minutes for his or her tires to be installed?
A.
0.3455
B.
0.2960
C.
0.1245
D.
0.1931
Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. What is the probability that a randomly selected airfare between these two cities will be more than $450?
A.
0.3669
B.
0.0788
C.
0.1788
D.
0.2033
A mechanic installs automobile tires on a first-come first-serve basis. The total time a customer needs...
Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probability distribution with a mean of $387.20 and a standard deviation of $68.50. What is the probability that a randomly selected airfare between these two cities will be more than $450? A. 0.3669 B. 0.0788 C. 0.1788 D. 0.2033
can you also show how to do this on excel? Costco installs automobile tires on a first-come first-serve basis. The total time a customer needs to wait for the installation to be completed follows the normal distribution with a mean time of 106.3 minutes and a standard deviation of 18.5 minutes. What is the probability that a randomly selected customer will wait 125 minutes for his or her tires to be installed?
1.) Tire Kingdom installs automobile tires on a first-come first-served basis. A random sample of 45 customers experienced an average wait time of 102.7 minutes. Assume that the standard deviation of total wait time for all customers is 17.0 minutes. Determine the margine of error for a 90% confidence interval for this sample. 2.) Tire Kingdom installs automobile tires on a first-come first-served basis. A random sample of 45 customers experienced an average wait time of 102.7 minutes. Assume that...
1.) Tire Kingdom installs automobile tires on a first-come-first-served basis. A random sample of 45 customers experienced an average wait time of 90.5 minutes. Assume that the standard deviation of the total wait time for all customers is 20.6 minutes. Determine the 95% confidence interval for this sample. 2.) The success of the Facebook business model depends on users clicking on ads when using the web site. A random sample of 260 Facebook users found that 169 of them click...
Complete the following three short answer problems. If you are able, feel free to print this out and write out your answers. If you do not have access to a printer, please write out your answers on a sheet of paper. You must show All Work including probability notation, probability distribution graph sketches, and circle your final answer to receive full credit. All calculations must be made in the provided Excel file. You must show a picture of your handwritten...
4. Interpreting area under the standard normal curve Suppose Dunlop Tire manufactures tires having the property that the mileage the tire lasts approximately follows a normal distribution with mean u=70,000 miles and a standard deviation o=4400 miles. a. What percent of the tires will last at least 75,000? b. Suppose Dunlop gives a warranty for tires to last 60,000 miles. What percent of the tires will last 60,000miles or less? c. What is the probability that a randomly selected Dunlop...
Question 10 1 pts The time that a student takes to reach the FIU's Miramar campus follows the normal distribution with a mean of 29 minutes and a standard deviation of 7. What is the probability that a randomly selected student takes between 24 and 30 minutes to reach the campus? O .29 36 32 O 68
The length of time it takes college students to find a parking spot in the library parking lot follows anormal distribution with a mean of 5.5 minutes and a standard deviation of 1 minute. Find theprobability that a randomly selected college student will take between 4.0 and 6.5 minutes to find aparking spot in the library lot.
The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 4.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will take between 2.5 and 5.0 minutes to find a parking spot in the library lot.
If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute,(i) find the probability that a randomly selected college student will find a parking spot in the library parking lot in less than 3 minutes.a) 0.3551 b) 0.3085c) 0.2674d) 0.1915(ii) find the probability that a randomly selected college student will take...