Test score for the Manila Science High school are normally distributed with a mean of 92 and standard deviation of 13. To qualify, candidates must score in the top 10%. Find the lowest possible score to qualify.

Q: The grade point average of students at a university is normally distributed, with a mean of 2.6 and…

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Q: Find mean and standard deviation of 1500 males

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Q: What is the minimum percentage of data values that will come within 2.5 standard deviations from the…

A: To find the minimum percentage

Q: The average score of all golfers for a particular course has a mean of 76 and a standard deviation…

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Q: After the first round of fitness training, the director of a policy academy plan to eliminate the…

A: The random variable is fitness scores. Fitness scores are from normally distributed. We have to use…

Q: The cruising altitudes for a Boeing 747 are normally distributed with a mean of 35,105 feet with a…

A: Solution

Q: Female cougar weights are normally distributed with mean=102 pounds and standard deviation= 13…

A: Answer:-  Given that, μ=102, σ=13

Q: The result of nationwide aptitude test in mathematics are normally distributed with mean=63 and…

A: Given : Mean (µ)=63 Standard deviation (σ)=5

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Mean = 1516 Standard deviation = 309

Q: All children who apply for admission to the Excellence Academy are given a placement exam. The…

A: Given, μ=65σ=10x<50 To calculate proportion using z, z=x-μσ

Q: a mandatory competency test for high school sophomores has a normal distribution with a mean of 400…

A: Given information- Mean, μ = 400 Standard deviation, σ = 100 We have given the bottom 1.5% of…

Q: What does having a higher standard deviation means?

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Q: The incubation time for Rhode Island Red chicks has a Normal distribution with a mean of 21 days and…

A: Here, mean is 21 and standard deviation is 1

Q: The height of women aged 20-29 in the united states are approximately normal with mean 64.2 inches…

A:

Q: The incubation time for Rhode Island Red chicks has a Normal distribution with a mean of 21 days and…

A: The incubation time is normally distributed with mean 21 days and standard deviation of 1 day.

Q: Fluorescent lightbulbs have lifetimes that follow a normal distribution, with an average life of…

A: Solution: From the given information, σ=1,612 hours and n=332.

Q: To qualify for a police academy, applicants are given a test of physical fitness. The scores are…

A: Obtain the cut off score for the top 20% of the applicants are selected. The cut off score for the…

Q: cular leg bone for dinosaur fossils has a mean length of 60 inches with standard deviation of 2…

A: Consider a random variable X which represents the length of the particular leg  bone for dinosaur…

Q: Most graduate schools of business require applicants for admission to take the Graduate Management…

A: From the provided information, Mean (µ) = 527 Standard deviation (σ) = 112 X~N (527, 112) Here X be…

Q: A person must score in the upper 2% of the population on an IQ test to qualify for membership in…

A:

Q: In Malaysia, the rate of fatal occupational accidents in the construction industry recorded was 0.2…

A: b) Given: i) Rate of accident per day = 0.2 Number of days in first quarter = 90 (31 + 28+ 31) So,…

Q: .A person must score in the upper 2% of the population on an IQ test to qualify for membership in…

A: As per the guidelines we are allowed to solve maximum of 1 question. If you need help with other…

Q: When 41 people are used the Weight Watchers diet for one year, their weight losses had a standard…

A: Hypotheses:H0: σ² = 36H1: σ² ≠ 36(Note: The value 36 comes from squaring the standard deviation of…

Q: The monthly rainfall (mm) in Batu Pahat recorded for the past 20 years was found to be normally…

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Q: A fifth grader takes a standardized achievement test (mean= 125, standard deviation= 15) and scores…

A: It is given that the mean is 125 and standard deviation is 15.

Q: calculate that the mean age of students, where 30 is the mean and standard deviation is 6. Between…

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Q: A random sample of 84 products is selected and sample mean and standart deviation are found to be…

A: We have to find level of confidence.

Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…

A: From the given information, μ=54.7σ=2.4

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the standard…

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Q: What percentage of computer programmer major received a starting offer between $32000 and $38000?…

A: The following information has been provided: \mu = 39269, \text{ } \sigma = 2550Mean : μ=39269,…

Q: Assume that the hourly cost to operate Saint-Martin Hyundai bus follows the normal distribution with…

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Q: Tommy Wait, a minor league baseball pitcher, is notorious for taking an excessive amount of time…

A: The mean and standard deviation are 190 and 2.3, respectively.

Q: The mean weight of a sample of chocolate bars from a particular chocolate factory is 8 ounces with a…

A: Let X represent the random variable   Mean=8 SD=0.1   X~ Normal (8, 0.12)

Q: The weight of a 10 year old girl is normally distributed with a mean of 80 pounds with a standard…

A: It is given that the mean is 80 and the standard deviation is 6.

Q: Using 1% level of significance, test if the population average is not 73.

A: A normally distributed standardized English test is known to have a mean score of 73 and a standard…

Q: The mean height of an average United States female is 65 inches with a standard deviation of 3.5…

A: The probability that a American women is more than 5 feet 9 inches is obtained below:Let X follows a…

Q: To qualify for security officers’ training, recruits are tested for stress tolerance. The scores are…

A: Given data,μ=62σ=8P(X>x)=15%=0.15x=?

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A:

Q: The heights of adult men in America are normally distributed, with a mean of 69.3 inches and…

A: Given, Men: μ=69.3σ=2.63 Women: μ=64.3σ=2.54

Q: The mean and standard deviation for the quality grade point averages of a random sample of 28 senior…

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Q: What is the standard deviation of the data {7, 1, 7, 10, 5, 3, 2}?

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Q: Nationally, the average score on the college entrance exams (verbal test) is 453 with a standard…

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Q: A standardized memory test has a mean of μ = 100 and a standard deviation of σ= 10. What percent of…

A: Let X be the score in the memory test which follows normal distribution with mean 100 and standard…

Q: The combined math and verbal scores for students taking a national standardized examination for…

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Q: The admission committee of AUCA enrolls 76% of those who took the exam. If the scores follow a…

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Q: The admission committee of AUCA enrolls 39% of those who took the exam. If the scores follow a…

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Q: In order to qualify for police academy training, recruits are given a test of stress tolerance. The…

A: From a given information, Mean = 250 Standard deviation = 18

Q: The heights of 10 year old American children are normally distributed with a mean height of 4 feet…

A: From the provided information, Mean (µ) = 53 inches Standard deviation (σ) = 4.5 inches Let X be a…

Q: A placement test for the state university freshmen has a normal distribution with a mean of 700 and…

A: Let X  be the test score. It is given that , a placement test for the state university freshmen has…

Q: The most common intelligence quotient (IQ) scale is Normally distributed with a mean of \\( 100 \\)…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 Let X be a random variable…