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13. Assume that the length of time needed to play a round of miniature golf at...
19. Assume that the length of time needed to play a round of miniature golf at...
19. Assume that the length of time needed to play a round of miniature golf at Noel's Funland is normally distributed with mean u = 45 minutes, and a standard deviation o = 10 minutes. If you randomly sample 25 players, what is the probability that the average for the 25 will exceed 50 minutes? EXCEL COMMAND
Question 1 of 21 4 Points You get this question on an exam: "Assume that the...
Question 1 of 21 4 Points You get this question on an exam: "Assume that the length of time needed to play a round of miniature golf at Noel's Funland is normally distributed with mean u = 45 minutes, and a standard deviation o = 10 minutes. If you randomly sample 25 players, what is the probability that the average for the 25 will exceed 50 minutes?" You solve the problem and get an answer. Now you are asked to...
Assume the random variable x is normally distributed with mean u = 80 and standard deviation...
Assume the random variable x is normally distributed with mean u = 80 and standard deviation c=5. Find the indicated probability. P(65<x< 73) P(65<x< 73)=0 (Round to four decimal places as needed.) X 5.2.17 Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 122. Assume the vari (a) What percent of the SAT verbal scores are less than 550? (b) If 1000 SAT verbal scores are randomly selected, about...
The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a...
The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 21 minutes and a standard deviation of 7 minutes. Find the probability that a randomly selected athlete uses a stairclimber for (a) less than 16 minutes, (b) between 21 and 28 minutes, and (c) more than 30 minutes. (a) The probability that a randomly selected athlete uses a stairclimber for less than 16 minutes is Round to four decimal places as needed.)...
The length of time a person takes to decide which shoes to purchase is normally distributed...
The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase. Is this outcome unusual? Probability is 0.045, which is unusual as it is less than 5% Probability is 0.954, which is usual as it is greater than 5% Probability is 0.045, which is...
(4) The time required to complete a final exam in a particular college course is normally...
(4) The time required to complete a final exam in a particular college course is normally distributed with a mean of 75 minutes and a standard deviation of 15 minutes. Answer the following questions: (a) (for a randomly selected student) What is the probability of completing the exam in 1 hour or less? (4) (b) What is the probability a randomly selected student will complete the exam in more than 60 minutes but less than 75 minutes? (4b) (c) Assume...
The length of time needed to complete a certain test is normally distributed with mean 23...
The length of time needed to complete a certain test is normally distributed with mean 23 minutes and standard deviation 11 minutes. Find the probability that it will take more than 20 minutes to complete the test.
1. The time needed to complete a final examination in a particular college course is normally distributed with a mean o...
1. The time needed to complete a final examination in a particular college course is normally distributed with a mean of 83 minutes and a standard deviation of 13 minutes. Answer the following questions. a. What is the probability of completing the exam in one hour or less (to 4 decimals)? b. What is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes (to 4 decimals)? 2. According to the...
8. Assume that the length of time needed to change the oil in a car at...
8. Assume that the length of time needed to change the oil in a car at Fiona's Service Station is normally distributed with mean u = 15 minutes, and a standard deviation o = 5 minutes. If Fiona decides to offer a discount to those customers whose cars take the longest 20% of servicing time, what is the cutoff for the time required to receive the discount? EXCEL COMMAND
Assume that women's heights are normally distributed with a mean given by = 63.4 in, and...
Assume that women's heights are normally distributed with a mean given by = 63.4 in, and a standard deviation given by o =2.7 in. (a) ir 1 woman is randomly selected, find the probability that her height is less than 64 in (b) If 49 women are randomly selected, find the probability that they have a mean height less than 64 in. (a) The probability is approximately (Round to four decimal places as needed.) (b) The probability is approximately (Round...
19. Assume that the length of time needed to play a round of miniature golf at Noel's Funland is normally distributed with mean u = 45 minutes, and a standard deviation o = 10 minutes. If you randomly sample 25 players, what is the probability that the average for the 25 will exceed 50 minutes? EXCEL COMMAND
Question 1 of 21 4 Points You get this question on an exam: "Assume that the length of time needed to play a round of miniature golf at Noel's Funland is normally distributed with mean u = 45 minutes, and a standard deviation o = 10 minutes. If you randomly sample 25 players, what is the probability that the average for the 25 will exceed 50 minutes?" You solve the problem and get an answer. Now you are asked to...
Assume the random variable x is normally distributed with mean u = 80 and standard deviation c=5. Find the indicated probability. P(65<x< 73) P(65<x< 73)=0 (Round to four decimal places as needed.) X 5.2.17 Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 122. Assume the vari (a) What percent of the SAT verbal scores are less than 550? (b) If 1000 SAT verbal scores are randomly selected, about...
The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 21 minutes and a standard deviation of 7 minutes. Find the probability that a randomly selected athlete uses a stairclimber for (a) less than 16 minutes, (b) between 21 and 28 minutes, and (c) more than 30 minutes. (a) The probability that a randomly selected athlete uses a stairclimber for less than 16 minutes is Round to four decimal places as needed.)...
(4) The time required to complete a final exam in a particular college course is normally distributed with a mean of 75 minutes and a standard deviation of 15 minutes. Answer the following questions: (a) (for a randomly selected student) What is the probability of completing the exam in 1 hour or less? (4) (b) What is the probability a randomly selected student will complete the exam in more than 60 minutes but less than 75 minutes? (4b) (c) Assume...
8. Assume that the length of time needed to change the oil in a car at Fiona's Service Station is normally distributed with mean u = 15 minutes, and a standard deviation o = 5 minutes. If Fiona decides to offer a discount to those customers whose cars take the longest 20% of servicing time, what is the cutoff for the time required to receive the discount? EXCEL COMMAND
Assume that women's heights are normally distributed with a mean given by = 63.4 in, and a standard deviation given by o =2.7 in. (a) ir 1 woman is randomly selected, find the probability that her height is less than 64 in (b) If 49 women are randomly selected, find the probability that they have a mean height less than 64 in. (a) The probability is approximately (Round to four decimal places as needed.) (b) The probability is approximately (Round...
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