Suppose the mean height for First grade Children is 90 Cm and the Standard deviation is 12 cm. Take a Sample OF Size n=36 Find the Probability that the Sample mean height is less than 88 cm

Q: Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard…

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Q: The distribution of grades in a final exam conforms to the normal distribution with an average of 60…

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Q: . What is the probability that the student will get into a college whose entrance score is 550?

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Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

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Q: In New York State, the population of teachers is known to have an average of 12.2 years of classroom…

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Q: The class mean for the exam was 82 with a standard deviation of 6.  There are 37 students in the…

A: We have given that, Mean = 82 , standard deviation σ = 6  sample size n = 37   Standard error of the…

Q: The weights of the cement per bag are normally distributed with a mean of 8.16 kg and a standard…

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Q: The height of the students in a class shows normal distribution. Students in this class have an…

A: We have to find givén probability..

Q: he lengths of pregnancies are normally distributed with a mean of 268 days and a standard of…

A: mean=268 S.D=15

Q: Assume thAt scores on a standardized test are known to follow a bell shaped distribution with a mean…

A: L

Q: The students in a certain high school have an average height of 160 cm with a standard deviation of…

A: Given : Sample size = n = 50 standard deviation = σ = 12

Q: If the scores follow normal distribution with a mean of 120, a standard deviation of 10, find…

A: Solution

Q: Find the probability that mean of sample size 36 will be negative.

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Q: A researcher wishes to estimate the average height of men for a certain region of the country. If…

A: Probability is the measure determine the likelihood of an event. Event is the outcome of an…

Q: A random sample of 100 male students is drawn from a particular class. The mean and standard…

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Q: The mean and standard deviation of the sampling distribution of the mean is shown as?

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Q: The height of the dogs in a pet shop is normally distributed with the average height of 25 cm and…

A: The data is normally distributed. Population mean is μ=25. Population standard deviation is σ=15.

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The average age of UST employees is 34 years old. Assume the data is normally distributed. If the…

A: The average age of UST employees is 34 years old i.e. μ=34 The standard deviation is three years…

Q: In a normal distribution, mean is 60 and standard deviation is 5. How many of the cases have scores…

A: The probability between two specific numbers a and b in a normal distribution with mean μ and…

Q: The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

A: GivenMean(μ)=6.04standard deviation(σ)=0.21Sample size(n)=33

Q: students has an average of 300 dollars and a standard deviation of 1,000. Suppose that we take a…

A: It is given that the random variable X i.e, the amount of money in savings accounts follow normal…

Q: The average weight loss at a clinic is 10lbs with a standard deviation of 5lbs. What is the chance…

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Q: The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

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Q: he manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

A:

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

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Q: The average age of UST employees is 34 years old. Assume the data is normally distributed. If the…

A: Let W be a random variable representing the age of the employees. The average age of the UST…

Q: Find the area of the shaded region. The graph to the right depicts scores of adults, and those…

A: normal distribution curve is given μ = 100σ = 15area shaded to the left of 120.

Q: The average score of all golfers for a particular course has a mean of 61 and a standard deviation…

A: Mean()=61Standard deviation()=4Sample size(n)=64

Q: The standard deviation of the lengths of stays on international cruises is 7.3 days. The sampling…

A: The standard deviation of the lengths of stays on international cruises is 7.3 days Total Sample =70…

Q: Suppose the heights of a certain population of people follow a normal distribution with a mean of…

A:

Q: The standard deviation for length of stay in a hotel is 7.2 days. For the variable “length of…

A: The standard deviation of the lengths of stays on international cruises is 7.2 days Total Sample =67…

Q: Assume that the test scores for a large class are normally distributed with a mean of 64 and a…

A: Solution-: Given: We find P(the class received a higher score than 78)=?

Q: The scores on a national achievement exam are normally distributed with a mean of 500 and a standard…

A: Given data: Mean =  500 Standard deviation = 100 To find: P( X < 600 ) = ?

Q: The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the…

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Q: The distribution of grades in a final exam conforms to the normal distribution with an average of 60…

A: Given information: μ=60σ=8 The proportion of students required to pass=300350=0.857142857≈0.8571

Q: In a standardized exam the mean score is 400 with a standard deviation of 50. If a random sample of…

A: Given that  μ= 400 , σ= 50 , n = 25

Q: Assume that the total cholesterol levels for adults are normally distributed with mean cholesterol…

A: