Suppose the average time it takes to drive from SFSU to Redwood City is 41 minutes,...
Suppose the average time it takes to drive from SFSU to Redwood City is 41 minutes, with a standard deviation of 9.2 minutes, and the time is normally distributed. A random trip is selected.
How long will it take to drive if the time is the top 10% longest?
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Suppose the average time it takes to drive from SFSU to Redwood
City is 41 minutes,...
Exander’s drive from home to work takes and average of 19 minutes normally distributed, with a...
Exander’s drive from home to work takes and average of 19 minutes normally distributed, with a standard deviation of 3 minutes. What is the probability that a trip will take 18 minutes or less? 0.6915 0.93 0.3694 0.3085 What is the probability that a trip will take 21 minutes or more? 0.8413 0.2525 0.1587 0.7468 What is the probability that a trip will take between 14 and 17 minutes? 0.5328 0.467 0.2047 0.2122 What is the probability the trip will...
Suppose that the population mean flight time between cities 1 and 2 is 150 minutes with...
Suppose that the population mean flight time between cities 1 and 2 is 150 minutes with a population standard deviation of 28 minutes, and that this trip time is a Normally distributed random variable. Find the trip time in minutes that would only be exceeded with a 0.05 probability (or a 5% chance).
B2) To save transportation time, the government improved the roads, they announced that the average time to reach from city A to city B is 35 minutes. A researcher wanted to check the announced re...
B2) To save transportation time, the government improved the roads, they announced that the average time to reach from city A to city B is 35 minutes. A researcher wanted to check the announced result, then has travelled on a random sample of 49 buses on this route from city A to city B and has found that the average time taken is now 32.5 minutes. Assume that the population standard deviation of 8.4 minutes. Using a 5% level of...
Let x denote the time it takes to run a road race. Suppose x is approximately...
Let x denote the time it takes to run a road race. Suppose x is approximately normally distributed with a mean of 190 minutes and a standard deviation of 21 minutes. If one runner is selected at random, what is the probability that this runner will complete this road race in less than 158 minutes? Round answer to 4 decimal places.
The average time it takes a group of young people to complete a The Children of...
The average time it takes a group of young people to complete a The Children of Alcoholic Screening Test (CAST) is 48 minutes. The standard deviation is 7 minutes. Assume the variable is normally distributed. Find the probability that if 31 randomly selected youngsters complete the test, the mean time it takes the group to complete the test will be less than 28.4 minutes.
The time of a typical Fortnite match is normally distributed, with mean 20 minutes and standard...
The time of a typical Fortnite match is normally distributed, with mean 20 minutes and standard deviation 10 minutes. We randomly sample 15 people. Include the Case or Rule you are in, and the calculator function. a. What is the probability that the average match time is more than 23 minutes? b. How long are the 5% longest average length of Fortnite matches?
Let x denote the time it takes to run a road race. Suppose x is approximately...
Let x denote the time it takes to run a road race. Suppose x is approximately normally distributed with a mean of 190 minutes and a standard deviation of 21 minutes. If one runner is selected at random, what is the probability that this runner will complete this road race in less than 162 minutes? Round your answer to four decimal places.
An engineer commutes daily from her suburban home to her midtown office. The average time for...
An engineer commutes daily from her suburban home to her midtown office. The average time for a oneway trip is 32 minutes, with a standard deviation of 4.1 minutes. Assume the distribution of trip times to be normally distributed. a) What is the probability that a trip will take at least 35 minutes? b) Find the probability that exactly 4 of the next 5 trips will take at least 35 minutes.
The average time a visitor spends at the Renzie Park Art Exhibit is 62 minutes
The average time a visitor spends at the Renzie Park Art Exhibit is 62 minutes. The standard deviation is 12 minutes. If a visitor is selected at random, find the probability that he or she will spend:A)At least 82 minutes at the exhibitB)At most 50 minutes at the exhibitThe average time a person spends at Barefoot Landing Seaquarium is 96 minutes. The standard deviation is 17 minutes. Assume the variable is normally distributed. If a visitor is selected at random,...
Suppose the time between buses at a particular stop is a positively skewed random variable with...
Suppose the time between buses at a particular stop is a positively skewed random variable with an average of 59 minutes and standard deviation of 6 minutes. Suppose the time between buses at this stop is measured for a randomly selected week, resulting in a random sample of n = 38 times. The average of this sample, X , is a random variable that comes from a specific probability distribution. (a)Which of the following is true about the distribution of...
B2) To save transportation time, the government improved the roads, they announced that the average time to reach from city A to city B is 35 minutes. A researcher wanted to check the announced result, then has travelled on a random sample of 49 buses on this route from city A to city B and has found that the average time taken is now 32.5 minutes. Assume that the population standard deviation of 8.4 minutes. Using a 5% level of...
Suppose the time between buses at a particular stop is a positively skewed random variable with an average of 59 minutes and standard deviation of 6 minutes. Suppose the time between buses at this stop is measured for a randomly selected week, resulting in a random sample of n = 38 times. The average of this sample, X , is a random variable that comes from a specific probability distribution. (a)Which of the following is true about the distribution of...
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