In a local university, 80% of the students live in the dormitories. A random sample of 64 students is selected for a particular study. The standard deviation of p-bar is   a. 64   b. 0.05   c. 1.6   d. 0.16   e. 0.5

Q: A group of apples from a particular grower were found to have diameters with a mean of 67.0 mm and a…

A: Given data,Mean μ=67sd    σ=4.1

Q: Find the standard deviation of the data: 22, 29, 21, 24, 27, 28, 25, 36 O a. 4.8 O b. 2.8 O C. 4.2 O…

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Q: According to one study, the average hours of sleep on a weeknight for men was 6.9 hours with a…

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Q: Es On their website, a property management company states that the mean monthly rent for apartments…

A: As per bartleby guideline expert have to answer first three subparts only dear student please upload…

Q: Florida has an average temperature of 80 degrees Fahrenheit with a standard deviation of 3.5…

A: # Given : average temperature of Florida is mu1=80 degrees and standard deviations sigma1=3.5…

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A:

Q: Suppose that the cost of annual tuition at colleges is normally distributed, with an average annual…

A: Denote X as the cost of annual tuition at colleges. It is given that X is normally distributed, with…

Q: 1. The University of North Carolina Chapel Hill received over 42,000 application for undergraduate…

A: Given information: The high school GPA of incoming freshmen follows a normal distribution with mean…

Q: The weight of laboratory mice follows a normal distribution, with a mean of 0.68 ounce and a…

A: Answer  Mean =0.68 Standard deviation =0.02

Q: The results of an analysis for a certain sample is given: 20.1, 24.1, 23.5, 22.2, and 21.6. Find the…

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Q: The ideal serving temperature of a particular type of red wine in 17 °C. A food critic is worried…

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Q: Consider the following data:  4.1, 2.1, 4.4, 3.8, 3.8, 3.5  What is the sample standard deviation?…

A: The objective of this question is to calculate the sample standard deviation of the given data set.…

Q: A large company has many employees and the annual salaries of those employees follow a normal…

A: X follows a Normal distribution with mean = 70000 and S.D = 12000 Then z=(x-mean)/SD =…

Q: The average height for female golden retrievers is 21.96 inches with a standard deviation of 1.77…

A: Given,mean(μ)=21.96standard deviation(σ)=1.77

Q: Three hundred college freshmen's grade point averages are seen to be nearly regularly distributed,…

A:

Q: The systolic blood pressure of 18-year-old women is a roughly bell-shaped distribution with a mean…

A: We have given that.   X~N( μ , ?^2 )   μ =120 , ? =12   Z-score =( x - μ )/?

Q: n variable.

A:

Q: The students in an AFDA class have a mean height of 66 inches and a standard deviation of 7 inches.…

A: Mean(µ) = 66Standard deviations (σ) = 7

Q: A group of apples from a particular grower were found to have diameters with a mean of 69.0 mm and a…

A:

Q: In the question below, do 50 minutes imply the mean of the population or the mean of the sample?…

A: The derived numerical characteristic that explains the average (or mean) at the population level can…

Q: Assume the annual day care cost per child is normally distributed with a mean of ​$9000 and a…

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Q: Suppose the mean starting salary for nurses is $66,613 nationally. The standard deviation is…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: A tire company finds the lifespan for one brand of its tires is normally distributed with a mean of…

A: Step 1:We have given that :Mean(μ)=46500 milesStandrad deviation(σ)=6000 milesThe probability of a…

Q: An electrical firm manufactures light bulbs for LCD projectors. A randomly selected sample of 24…

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Q: The average sale price (online) for a certain brand of professional mountain bike is approximately…

A: Given that, Population Mean (μ)=$4200Population standard deviation (σ)=$250 Let X denote the average…

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Q: For a random sample of 55 overweight men, the mean of the number of pounds that they were overweight…

A: Given data, n=55 μ=32σ=4.1Point estimate μx=?

Q: If the weekly grocery expenditure of households in a certain urban market is known to be normally…

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Q: A person records the speeds of various cars as they drive past their house. After 100 readings, the…

A: Given,mean(μ)=23.84standard deviation(σ)=3.56

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Q: recent Gallup poll interviewed a random sample of 1523 adults. Of these 868 bought a lottery ticket…

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Q: n what range of money for their annual salary?

A: In this, the given values are: μ=54,600 σ =10,200 According to the empirical rule, for normal…

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A: Solution

Q: The annual ground coffee expenditures for households are approximately normally distributed with a…

A: Given Information: Population Mean = $46.34 Standard deviation = $10.00 (a) To find the probability…

Q: The annual income for a sample of 450 part-time students is normally distributed with a mean income…

A: Given that: Population mean, μ=31000 Population standard deviation, σ=3000 Sample size, n=450

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.