Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 14.  Using the empirical rule, what percentage of IQ scores are between 86 and 114

Q: Suppose that a distribution of 400 items has mean 130 and standard deviation 5. Find the​ z-score of…

A: Given that.   X~N( μ , ?)   μ=130     , ?=5  , x=143   Z-score =( x - μ )/?

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 65 and a…

A: It is given that the mean is 65 and the standard deviation is 8.

Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…

A: Given dataMean = 116Standard deviation = 14Probability that population would be between 116 and 130…

Q: If a sample has a mean of 150 and a standard deviation of 9, what is the value in the data set that…

A: Given,mean(μ)=150standard deviation(σ)=9Z-score=1.58

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

A:

Q: uppose that IQ scores have a bell-shaped distribution with a mean of 101 and a standard deviation of…

A: The question is about empirical rule.Given :Population mean of IQ scores (  ) = 101Population…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation…

A: Solution According to the Empirical rule.

Q: Suppose that scores of an SAT are normally distributed with a mean 1050 and a standard deviation…

A: From given data we have : mean μ=1050 standard deviation σ=200

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

A: Given that, IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation of…

Q: What proportion of the students scored lower than 80 if the distribution of these grades can be…

A:

Q: If the scores on a test have a mean of 43 and standard deviation of 1.5, what is z score of 45?

A: In order to solve for the equivalent z score, we will use the z score formulaFormula:z =…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

A:

Q: Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of…

A: Given data: Mean = 0.22 inches Standard deviation  = .05 inches To find: What proportion of woodlice…

Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…

A: The percentage of the population would be between 116 and 144 is obtained below:It is given that the…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 454 and a standard…

A:

Q: Suppose that the scores on the reading ability test are normally distributed with a mean of 70 and a…

A: We have to find z score for given data..

Q: If a sample has a mean of 48 and a standard deviation of 3.2, what is the value in the set that…

A:

Q: Suppose that another sample of resting heart rates for five Math students was obtained: 72, 68, 66,…

A: From the given data we want to know the data value .

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation…

A: Given, Mean, mu= 104 Standard deviation, sigma= 17 We know that,  Z score= (X-mu)/sigma

Q: Suppose exam scores in a statistics class are normally distributed with a mean of 89 and standard…

A: Given data, Mean=89 sd=8 P(X<x)=0.45 x=?

Q: Suppose a claim is made that the mean age of members of a golf club is 52 years. The population…

A: Given: μ = 52 σ = 6 n = 50 X = 56 Formula Used: Test-statistic Z = X-μσn

Q: Suppose the test scores in a class are normally distributed with a mean of 70 and a standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation…

A:

Q: Suppose that IQ scores have a bell shape distribution with a mean of 105 and a standard deviation at…

A: Solution: Let X represent the IQ scores of students.  The distribution of X is bell shape…

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: Suppose that the scores on a reading ability test are normally distributed with a mean of 60 and a…

A: Given that μ=60 and σ=10

Q: Suppose that the score on a reading test are normally distributed within a mean of 70 and a standard…

A:

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 65 and a…

A: given information: scores of reading ability test normally with μ=65  ,σ=8 we want to find P(test…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 103 and a standard deviation…

A:

Q: An IQ test has a mean of 100 and a standard deviation of 15. Which is more unusual, an IQ of 85 or…

A: The objective of this question is to determine which IQ score is more unusual, an IQ of 85 or an IQ…

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.