A successful basketball player has a height of 6 feet 4​inches, or 193cm. Based on statistics from a data​ set, his height converts to the z score of 2.66 How many standard deviations is his height above the​ mean?   The​ player's height is ___ standard​ deviation(s) above the mean.

Q: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 6.…

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Q: If a population has a standard deviation of 16, what is the minimum number of samples that need to…

A: Given,standard deviation (σ)=16margin of error (E)=2α=1-0.88=0.12α2=0.06Z0.06 =1.5548

Q: For a sample with M= 80, a score of X= 88 corresponds to z =2. what is the sample standard deviation…

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Q: n = 11 Ex=55 Ex²=2230 Give the value of the sample standard deviation.

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Q: A. In a test of a lifelong brand of tires, a survey revealed that the mean life was 35,000 miles and…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: A survey of 1000 men ages 20 to 30 found that their heights were normally distributed, with a mean…

A: Solution: Let X be the height of men ages 20 to 30. From the given information, X follows normal…

Q: Which of the following is the correct formula for the margin of error of a population mean where the…

A: Margin of error: A margin of error is a statistical measurement for the diff. between actual and…

Q: A survey of 1000 women ages 20 to 30 found that their heights were normally distributed, with a mean…

A: (a) From the given information The mean is 65 in. and a standard deviation is 2.5 in. The mean x¯ of…

Q: For a sample with mean M=80,  a score of X=88 corresponds to z=2. What is the standard deviation?

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Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A: Given :Population standard deviation = 2.8 daysCompany wants to be 95% confident that the true mean…

Q: A given distribution has a population mean, μ, of 114 and a population standard deviation, σ, of 12.…

A:

Q: The grades on a midterm were Normally distributed with a mean of 120 and a standard deviation of 17.…

A: GivenMean(μ)=120standard deviation(σ)=17

Q: A grocery supplier believes that in a dozen eggs, the mean number of broken eggs is 0.5 with a…

A: Given : For a dozen of eggs :  E(X) = 0.5 SD(X) = 0.4

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5 find P(X <…

A:

Q: The life expectancy of a fluorescent light bulb is given by the number of hours that it will burn.…

A: The calculation for standard deviation are, x-x¯ x-x¯2 x-x¯2f -1971.1 3885235.21 7770470.42…

Q: A normally distributed population has a mean of 88 and a standard deviation of 10. When a sample of…

A: Here the given population mean is 88 and population standard deviation is 10.

Q: What is the average score for those who are willing to rise to the challenege with the standard…

A: Here X takes values 1, 2, 3, 4, 5 with following frequencies The average score is calculated using…

Q: A researcher wishes to determine how much money per week is spent on groceries in a small Western…

A: Given : ME&lt; 3.0 σ= 18.0 At 98.0 % confidence level , z score= 2.326 Need to find the minimum…

Q: For a mean of 70 and a standard deviation of 8, find standardized score for a value of 80. O - 1.25…

A: From the provided information, Mean (µ) = 70 Standard deviation (σ) = 8

Q: A midterm exam has a mean of 76.0 and a standard deviation of 8.0. If any student with a z-score of…

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Q: A group of students take a Statistics Exam where the average was M = 90 and the standard deviation…

A:

Q: An accountant is studying the attendance levels at the concerts of a touring rock band. She finds…

A: Let x¯ be the mean number of attendees at a performance in her study for 62 performances which…

Q: . Sheldon owns a mango farm and the weight of his mangoes are normally distributed with an average…

A: here  N = 800 n = 50 μ = 200 gramσ = 15 grams

Q: A pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…

A: Mean = 1269 Standard deviation = 145

Q: Given a scenario where n=100 and p=0.8, find the standard deviation.

A: In this case the sample size is n = 100 and p = 0.8.

Q: In a statistics class of 150 students, the mean and standard deviation of scores was 70 and 5,…

A: Given: The total number of students are N=150. The mean scores of students in a statistics class is…

Q: 4. The average waist size for teenage males is 29 inches with the standard deviation of 2 inches.…

A:

Q: John wishes to estimate the population standard deviation of salary of college graduates who took a…

A: Standard deviation is the positive square root of the mean of the squared deviations of given…

Q: The scores of students on an exam are normally distributed with a mean of 403 and a standard…

A:

Q: In a class of twenty-five 15-year old girls the average height is M = 62.60 inches. The national…

A: It is given that M=62.6, μ=63.8 and σ=2.66. The z-statistic is calculated asz=M-μσ/nwhere M is the…

Q: Q2/ The number of hours worked by 10 employees of small building firm during a week were: 45 46 34…

A: Given data, 45,46,34,47,44,42,46,42,43,44

Q: The marks of six students in a science test are represented by the variable x. The following data…

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Q: A given distribution has a population mean, μ, of 106 and a population standard deviation, σ, of 11.…

A: Mean = 106 Standard deviation = 11 Raw score = 104

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A: Margin of error(E)=1 day Population standard deviation(σ)=2.8 days at confidence level 95%,…

Q: If a gambler places a bet on the number 7 in​ roulette, he or she has a​ 1/38 probability of…

A:

Q: A survey of 1000 women ages 20 to 30 found that their heights were normally distributed, with a mean…

A: (a) From the given information The mean is 65 in. and a standard deviation is 2.5 in. The mean x¯ of…

Q: In a population with m=60, a score of X=58 corresponds to a z-score of z=-0.50. What is the…

A:

Q: Q2 (b): According to the above raw data, the value of standard deviation * :(SD) is 10.0322 10.3601…

A: Solution: n= 40 observation  The sum of raw data is  ∑x=2619 The square sum of raw data is…

Q: What is the z-score of x = 3 if it is 2 standard deviation to the left of the mean? O -3 O -2 O -1 O…

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Q: A statistical analysis of a very large sample of fully-assembled medical devices indicates that the…

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Q: On a measure of​ anxiety, the mean is 83 and the standard deviation is 12. What are the Z scores for…

A: Given: Mean (M) = 83 Stndard deviation (SD) = 12 Formula:

Q: If you draw a sample of 200 from a normal distribution and using the empirical rule; how many data…

A: Empirical rule: On a normal distribution about 68% of data will be within one standard deviation of…

Q: "On the Standford-Binet test, the mean IQ is 100. A class of 13 kindergarten pupils were tested with…

A: According to our policy we can answer only first three part for remaining please repost the…

Q: A nurse at a local hospital is interested in estimating the birth weight of infants. How large a…

A:

Q: Assume that the heights of adult puffins are normally distributed, with a mean of μ=μ= 15.9 inches…

A: Given data, μ= 15.9  σ= 2.7  n=28 mean of the distribution of x¯  =?

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A:

Q: In a certain​ distribution, the mean is 70 with a standard deviation of 5. At least what fraction…

A: Given. μ=70 σ=5 We have to determine the fraction of of the numbers are between 60 and 80.…

Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

A:

Q: The mean, µ, is (Round to the nearest tenth as needed.) The variance, o², is| (Round to the nearest…

A: Given : The distribution is binomial distribution  and  n = 50 , p = 0.2

Q: A nurse at a local hospital is interested in estimating the birth weight of infants. How large a…

A: From the provided information, Population standard deviation (σ) = 6 ounces Confidence level = 98%…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.