Suppose a nomal distribution has a mean of 50 and a standard deviation of 3. What is Pes 47)?

Q: What is the maximum blood pressure reading of the lowest 70% of adult males?

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Q: Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A:

Q: An entrance examination is to be conducted to 1600 ncoming freshmen students at Gordon college which…

A: Let X be the variable denoting score of the exmination. X ~ N (μ, σ) Given mean, μ = 85 standard…

Q: Assume that adults have IQ scores that are normally distributed with μ=38 and a standard deviation…

A:

Q: The mean of a population (μ) is 120 and the standard deviation is 20.  What is the mean of the…

A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 20

Q: The standard deviation may not be greater than the mean. O True O False

A: False: standard deviations may be greater than mean  example: random variable x follow standard…

Q: From the empirical rule we can deduce that, for any distribution, 95% of the observations fall…

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Q: According to a study done by Pierce students, the height for Hawaiian adult males is normally…

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

A: Solution

Q: Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A: Solution: State the hypotheses. Null hypothesis: H0: µ=69 Alternative hypothesis: H1: µ≠69

Q: Suppose the average golfer drives the ball around 225.55 yards with a standard deviation of 8.82.…

A: Assume that the random variable x denotes the distance of balls drove by the golfer.

Q: The mean and standard deviation of a population are 200 and 20, respectively. Suppose samples of…

A: Given : μ = 200 , σ= 20 and n= 36

Q: The mean annual income for people in a certain city (in thousands of dollars) is 43, with a standard…

A: Given,sample size(n)=91mean(μ)=43standard deviation(σ)=23

Q: A manufacturer claims that the mean weight of its ice cream cartons is 10 ounces with a standard…

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Q: If the standard deviation, o is known the 2-distribution values may not be used to determine…

A:

Q: Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A: It is given that the claim is "The mean pulse rate​ (in beats per​ minute) of adult males is equal…

Q: A consumer group claims that the mean annual consumption of banana by a person in the Philippines is…

A:

Q: A normal distribution has a mean of 10 and a standard deviation of 10. What is the number such that…

A: Given the distribution is normalMean = 10standard deviation = 10 The Z score for probability to its…

Q: If asample has amean of 48 and a standard deviation of 3.2,what is the value in the set…

A:

Q: Suppose a population that has mean 90 and standard deviation 20. How many observations, n, should…

A:

Q: The ages of single parent are normally distributed, with a mean of 38 and a standard deviation of…

A: Given: Population mean μ=38 Population standard deviation σ=4 Let X be the normal distribution…

Q: Suppose that weights of 5th grade elementary girls are normally distributed with mean µ = 64 lbs and…

A:

Q: If a distribution is normal with a mean 12 and a standard deviation 3, then the median is also 12.…

A: Normally distribution is a continuous probability distribution. In normal distribution curve is a…

Q: The scores of students on an exam are normally distributed with a mean of 241 and a standard…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 241 and…

Q: Suppose the exam average in a class is 72% with a standard deviation of 3. What proportion of…

A: Given data: Average score = 72 % Standard deviation  = 3% To find: What proportion of students…

Q: Assume that the test scores from a college admissions test are normally distributed, with amean of…

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Q: If the true mean is .9560 with a standard deviation of .0020 what is the sampling distribution of X

A: if the true mean is 0.9560 with a standard deviation of 0.0020 i.e.  μ=0.9560  and σ = 0.0020

Q: In a certain distribution of numbers, the mean is 40 with a standard deviation of 5. Atleast what…

A: Given data: Mean = 40 standard deviation = 5. To find: Atleast what fraction of the numbers are…

Q: The average number of moves a person make in his/her lifetime is 12 and the standard deviation is…

A: Given,sample size(n)=25mean(μ)=12standard deviation(σ)=3.5

Q: What is the standard deviation of a ribution that has a mean of 46.2 if a FORMANCE value of 28 is…

A: Given information: The mean of the distribution is µ = 46.2 The performance value is x = 28. The…

Q: ​Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A:

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(xs 53)?

A:

Q: Suppose the scores of students on an exam are normally distributed with a mean of 253 and a standard…

A: From the provided information, Mean (µ) = 253 Standard deviation (σ) = 80

Q: Given a distribution with a mean of 117 and standard deviation of 42. find a value with a 7-score of…

A:

Q: If a distribution is normal mean=60 standard deviation=15 what is the z score of 75

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: In certain distribution of numbers,the mean is 70 with a standard deviation of 3. At least what…

A: Given, Mean μ = 70 Standard deviation σ = 3

Q: What is the z-score if our standard deviation was 2, mean of 49 and our specific observation is 47?

A: Given: Standard deviation = 2 Mean= 49 Specific observation =47 Determine the Z- score using the…

Q: In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of…

A: 1.   From the given information, the sample size is 250.  The population standard deviation is 2.5.…

Q: The Drive-thru lane at Chick-fil-a's mean wait time is 7 minutes with a standard deviation of 2…

A: 8. The standard deviation for sampling distribution of means is, σx¯=σn=210=23.16227766=0.6325

Q: a small company is looking to see if they have reached their goal of $30.20, in saving per family.…

A:

Q: The standard deviation of the distribution of sample means would be equal to:

A: The standard deviation of the distribution of sample means would be equal to ?

Q: A distribution is known to be bell-shaped, with a mean of 82 and a standard deviation of 6. What…

A: Obtain the Z-score for the random variable X equals 76. The Z-score for the random variable X equals…

Q: Suppose the distribution of typing speeds in words per minute for experienced typists can be…

A: Solution: Let X be the typing speed in words per minute. From the given information, X follows…

Q: The scores of students on an exam are normally distributed with a mean of 193 and a standard…

A:

Q: The gas mileage for a new model of car is normally​ distributed, with a standard deviation of 3.5…

A: The normal distribution: A continuous random variable X is said to follow normal distribution with…

Q: the height of American men is normally distributed with a mean of 70 in and a standard deviation of…

A:

Q: Assuming that the height of a college women are nobody distributed with mean 65 in and standard…

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Q: Consider population data with 5 being the standard deviation, 5 being the mean. Compute an 88.9%…

A: It is given that the mean is 5 and the standard deviation is 5.

Q: Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random…

A: Suppose, X be the pulse rate​ (in beats per​ minute) of adult males. and X follows Normal…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.