In a normal distribution, a data value located 1.1 standard deviations below the mean has Standard Score: z = In a normal distribution, a data value located 2.3 standard deviations above the mean has Standard Score: z =

Q: Which of the three normal curves below has the lowest mean? Lowest standard deviation? A (В Lowest…

A: The objective is to identify the normal curve that has the lowest mean and lowest standard…

Q: In a Normal distribution 7% items are under 35 and 89% are under 63. Find its mean and standard…

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Q: According to data for a​ population, 3-year-old boys have a mean height of 38 inches and a standard…

A: given data normal distributionμ = 38 inchesσ = 2 inchesfor x = 42 inchespercentile = ?

Q: Use the normal distribution below for the prices of a high end HD television to answer the question.…

A: as we know empirical rule:  approximately 68 -95 -99.7% data fall within 1σ-2σ-3σ of μ.

Q: The mean rate for cable t.v.from a sample of 80 households was $29 per month with a standard…

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Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

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Q: A statistician uses Chebyshev's Theorem to estimate that at least 90 % of a population lies between…

A: We have to find correct answer for given data..

Q: What proportion of skiers will finish the race in exactly one minute?

A: The tume it takes for downhill skiers to finish a race follows a Normal distribution with a mean of…

Q: ssume that a randomly selected subject is given a bone density test. Bone density test scores are…

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Q: Assume a normal distribution of a sample with a Mean of 10, and a standard deviation of 2.  Convert…

A: We have given that.   X~N( μ , ?^2 )   μ = 10, ? = 2   Z-score =( x - μ )/?

Q: ketch a normal curve for each distribution. Label the x-axis at one, two, and three standard…

A: Given,  z=x-μσ Mean (μ)=30 Standard deviation (σ)= 5

Q: Sketch a normal curve for each distribution. Label the x-axis at one, two, and three standard…

A: From provided mean (μ) and standard deviation (σ), the point (X) for any distance value from the…

Q: 1. Population = 1425, Confidence Confidence of Interval= 95% of Interval= 98%

A: Since, the question number is not specified, we'll be doing the first question only. Please resubmit…

Q: In a normal distribution, find the mean when standard deviation is 6 and 3.75% of the area lies to…

A: From the provided information, Standard deviation (σ) = 6 3.75% of the area lies to the left of 85.…

Q: For the standard normal curve, identify the z-score that corresponds to the 33rd percentile.

A: standard normal distributionZ~N(0,1)identify z score that corresponds to 33rd percentile

Q: art professor gives an A to any student in the top 9% of the distribution. The grades are normally…

A: Given X~N(mean μ=60, standard deviations σ=5) P(X>b)=9%

Q: Give the mean and the standard deviation of the distribution of means for mean=100; Variance=100;…

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Q: Matthew and Ashley went a candy store, but for some reason wanted to purchase nuts. They could not…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: A new Economic / Social Conservatism Scale has scores between 0 and 30 (0 being extreme liberal, 30…

A: Solution Given that, A new Economic / Social Conservatism Scale has scores between 0 and 30 (0 being…

Q: The amount dispensed by a cola machine follows the normal distribution with a mean of 7 ounces and a…

A: Given, μ = 7σ = 0.10p = 0.01         To find value of x?

Q: A normal distribution has a mean of 80 and a standard deviation of 6. Find the z-score for a data…

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Q: A normal distribution has a mean of 87 and a standard deviation of 10. Find the z-score for a data…

A: Given that, Mean = 87 Standard deviation = 10

Q: In a normal distribution, find the proportion of the population within three fifths of a standard…

A: We have to find out given proportion..

Q: The mean in a given set of data is 10.00 and the population standard deviation is 2.50. If the data…

A: The kth percentile implies the value, below which k of the total observations lie.

Q: Use the normal distribution of IQ​ scores, which has a mean of 130 and a standard deviation of 16​,…

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Q: Assume the birth weights at a local hospital have a normal distribution with a mean of 110 oz and a…

A: Let , random variable x follows normal distribution with mean μ and standard deviation σ 1) The…

Q: The playing life of a Sunshine radio has a Normal distribution with a mean of 600 hours and a…

A: It is given that the mean is 600 and the standard deviation is 100.

Q: Suppose that vehicle speeds at an interstate location have a normal distribution with a mean equal…

A: The random variable vehicle speed follows normal distribution. The population mean is 70. The…

Q: Sacks of grain have an average weight of 120 Kilograms. It is found that 10% of the bags are over…

A: let X: weight of the bags.X~N(μ,σ)where  mean(μ)=120 kg.and given P(X>125)=10%=0.10  find…

Q: In a normal distribution, it is found that the mean is 56 and the standard deviation is 5, Find the…

A: We want to find the range of the values

Q: Let the physics exam scores X follow a normal distribution with mean 80 and standard deviation 10.…

A: Given,mean(μ)=80standard deviation(σ)=10

Q: Use Z-scores to determine which is a better relative golf score (remember that in golf, lower scores…

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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.