Question 3: The Scores on the Graduation project examination are normally distributed with a mean of 527 and a standard deviation of 112. b) What is the probability of an individual scoring above 500 on the Graduation proje~?

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

A:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.7…

A: It was given that a manufacturer knows that their items have a normally distributed lifespan. The…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2 years,…

A: A manufacturer knows that their items have a normally distributed lifespan, with Mean = 2 Standard…

Q: If the mean time spent doing this homework assignment was 47.3 minutes with a standard deviation of…

A: Mean = 47.3 Standard deviation = 5.8

Q: Suppose the teenagers that attend public high school get an average of 5.7 hours of sleep each night…

A: Given that, μ=5.7 hoursσ=1.7 hoursn= 35 The probability that a randomly selected group of 35 high…

Q: Suppose that the average outstanding credit card balance for young professionals is Php11,200 with a…

A: Given: Population meanμ=11200Population standard deviationσ=2600Sample size(n)=150

Q: The IQs of 600 applicants of a certain college are normally distributed with a mean of 115 and a…

A: Answer - The IQ of  n = 600 applicants of a certain college are normally distributed…

Q: Suppose the average age of family members is 34 with a standard deviation of 4. One hundred members…

A:

Q: The distribution of scores for the third exam in a statistics course has a mean of 74 and a standard…

A: Given Information: Mean, μ=74 Standard Deviation, σ=15 Sample Size, n=36

Q: A standard I.Q. test produces normally distributed results with a mean of 104 and a standard…

A:

Q: The lifespan of such westerner aided by modern machine is normally distributed with a mean of 75…

A:

Q: The standard deviation of monthly rents paid by students in a particular city is assumed to be $ 60.…

A: Given, σ = 60 n = 150 we have to find 1.    P( x- < μ + 8 ) 2.    P ( x- < μ - 6 ) where,  Z =…

Q: The probability that a patient recovers from a delicate heart operation is 0.85. What is the…

A: Here, p=0.85 and n=7. The general formula for SD is, SD=np1-p

Q: The probability that a patient recovers from a delicate heart operation is 0.85. What is the…

A: The standard deviation of the binomial random variable obtained by the formula is σ=np(1-p), where…

Q: Suppose that the distribution of touchdown passes (in football) is normally distributed with a mean…

A:

Q: The standard deviation of monthly rents paid by students in a particular city is assumed to be $ 60.…

A: Given information: Population standard deviation σ=$60

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.8…

A:

Q: The average age of the ABS CBN employees is known to be 32 years and the standard deviation is 5…

A: Since you have posted a multiple questions, we will solve the first complete question and request…

Q: According to the records, the amount of precipitation in a certain city I don't November day has a…

A: According to records, the amount of precipitation in a certain city on a November day has a mean of…

Q: Suppose that prices of women’s athletic shoes have a mean of $75. and a standard deviation of…

A: Given information- Mean, μ = $75 Standard deviation, σ = $17.89 Sample size, n = 50 We have to…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.2…

A: Mean = 2.2 Standard deviation = 0.7 Sample size = 17

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: Suppose the age a student graduates from Salem State is Normally distributed. If the        mean age…

A: Given, mean = 23.1 Standard deviation = 3.1 We know, z = (x-mean)/std dev

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.6…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: The probability that a patient recovers from a delicate heart operation is 0.85. What is the…

A: Number of patients (n) = 8 p(patient recovers) = 0.85 Let "X" be the number of recovered patients…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.1…

A: Solution: 53. Let X be the lifespan of an item. From the given information, X follows normal…

Q: In a study researchers found the mean sodium intake in men and women 60 years or older to be 2940 mg…

A: The mean is 2940 and the standard deviation is 1476.

Q: According to an article in Human Biology, the mean age of childbirth in Columbia, is 44.8 years with…

A: It is given that:

Q: The ages of U.S. farm operator are normally distributed with a mean of 50 years and a standard…

A: Given, Mean = 50  Standard deviation = 8 n = 250

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

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Q: The mean score of a statistics exam of class A is 75 with a standard deviation of 13 while class B…

A: It is given, Mean score of statistics exam = 75 SD of statistics exam = 13 Mean score of statistics…

Q: For women aged 18-24, systolic blood pressures (in mm HG) are normally distributed with a mean of…

A: Let X denote the systolic blood pressures (in mm HG) are normally distributed with a mean of μ=114.8…

Q: Suppose the standard deviation of the heights of university male students is 3°. One hundred male…

A:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.2…

A: Let "M" be the mean lifespan of the item in years.

Q: The time for a student to commute from home to a university campus is Normally distributed with a…

A: It is given that the mean is 25 minutes and the standard deviation is 10 minutes.

Q: For a standardized psychology examination intended for psychology majors, the historical data show…

A:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.1…

A: Solution: Let X be the life span of item. From the given information, X follows normal distribution…

Q: According to a survey, the average weight of NFL players is 254 lbs. with a standard deviation of 44…

A: From the provided information, Mean (µ) = 254 Standard deviation (σ) = 44 X ~N (254, 44) Here X be a…

Q: The height of the adult in a community are normally distributed with a mean value of 172 centimeters…

A: X: height of the adult in a community. X~N(μ,σ) μ=172cm   and     σ=8cm

Q: There is a​ 5% chance that the mean reading speed of a random sample of 21second grade students will…

A:

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 9.5…

A: Let "M" be the mean lifespan of the item in years.

Q: Suppose the reaction times of teenage drivers are normally distributed with a mean of 0.53 seconds…

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is…

Q: For healthy individuals, between 18 and 48, the mean heart rate is 60 beats per minute (bpm) with a…

A: Calculating the probability: The heart rates have a mean 60 and standard deviation 10. Let X denotes…

Q: According to records, the amount of precipitation in a certain city on a November day has a mean of…

A: Given, Mean of precipitation is 0.10 and standard deviation is 0.05 A random sample of 40 days.

Q: The annual precipitation amounts in a certain mountain range are normally distributed with a mean of…

A: Normal distribution - The normal distribution is widely used to calculate probabilities which are…

Q: The average height of a certain age group of people is 53 inches and the standard deviation is 4…

A: Let X=the height of a certain group of people. X follows a normal distribution with mean=53 and…

Q: Suppose it is known that the average score of all high school seniors taking a national test of…

A:

Q: An animal in the zoo lives to an average of 10 years of age, with a standard deviation of 1.4 years.…

A: In this context, X denotes the survival of animal in the zoo. It is known that the mean is 10 years…

Q: The length of life of an instrument produced by a machine is normally distributed with a mean of 12…

A:

Q: The average score of all golfers for a particular course has a mean of 66 and a standard deviation…

A: Given: n= 64 The standard error can be calculated as: σX=σn=464=0.5 The z score for x = 67 can be…