A population of proportions has a distribution with p=0.72 and σ=0.449. You intend to draw a random sample of size n=35. According to the Central Limit Theorem:   What is the mean of the distribution of sample means? ˆp= What is the standard deviation of the distribution of sample means? (Report answer accurate to 3 decimal places.) σˆp=

Q: A normal distribution has u = 30 and o = 5.

A: Given that, Mean = 30 Standard deviation = 5 Z score = 1.3

Q: If the population standard deviation of a normal distribution is 2.8, then find the standard…

A: Answer: From the given data, Population standard deviation = 2.8 number of observations = 68

Q: A population was found to have a mean of µ =75 and standard deviation of σ =2.3. If you took every…

A: Given information- Population mean µ = 75 Population standard deviation, σ = 2.3 Sample size, n = 10

Q: A randomly selected sample of n = 85 individuals over 65 years old takes a test of memorization…

A: The objective of this question is to calculate the standard error of the mean (s.e.) for a sample of…

Q: Assume the cholesterol levels in a certain population have mean µ= 200 and standard deviation σ =…

A: According to the given information in this question We need to find z score for a sample mean of 180…

Q: A distribution of values is normal with a mean of 210 and a standard deviation of 23. From this…

A: The provided data is, X ~ N (µ, σ) X ~ N (210, 23) The sample size, n is 38.

Q: A population has a mean μ = 130 and a standard deviation o =26. Find the mean and standard deviation…

A: Given that  Population mean (μ) = 130 Population standard deviation (σ) = 26 Sample size (n) = 52…

Q: Scores on a standardized exam are known to follow a normal distribution with a standard deviation of…

A: The width of the given interval is,

Q: A population has a mean μ=90 and a standard deviation σ=22. Find the mean and standard deviation of…

A:

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

A:

Q: Today, the waves are crashing onto the beach every 5.6 seconds. The times from when a person arrives…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted.....…

Q: Assume that z scores are normally distributed with a mean 0 and a standard deviation of 1. If Pl - b…

A: # z be the standard normal variates with mean 0 and standard deviations 1  To find value of b such…

Q: A population of values has a normal distribution with the mean μ = 60.9 and standard deviation σ…

A: Given data, μ = 60.9  σ =58.4 If n=160

Q: A distribution has Mean of µ = 100 and Standard Deviation of ? = 20. Use Chebyshev’s Theorem  to…

A:

Q: A normal distribution has u = 30 and o = 5. (a) Find the z score corresponding to x = 25. (b) Find…

A:

Q: A population of values has a normal distribution with u = 173 and o = 55. You intend to draw a…

A: Consider that the variable of interest is x.

Q: An unknown distribution has a mean of 150 anr a standard deviation of 12. Sample of size n=56 are…

A: X~N( μ , ?)μ=150   , ?=12 ,   n=56Z-score =( x - μ )/?

Q: A normal distribution has mean μ = 60 and standard deviation σ = 20. Find and interpret the z-score…

A: Step 1: State the given data: raw score, x = 75population mean, µ = 60population standard deviation,…

Q: Assume a poison distribution if A = 3.7, find P(x=0) A represents a

A: We have given that,  Let X be random variable from Poisson distribution and A = 3.7, which is a…

Q: A normal distribution has a mean of µ = 24 with σ = 3. What is the minimum score needed to be in the…

A: given data  normal distribution μ = 24σ = 3 to be in top 14% minimum required score = ?

Q: (a) Mean =10 , median =10 , standard deviation =4   The coefficient of skewness is    . This…

A: Skewness indicates asymmetry of a bell shaped curve. When the bell shaped curve losses symmetry and…

Q: Today, the waves are crashing onto the beach every 5.6 seconds. The times from the shoreline until a…

A: Multiple Sub-parts: Solve first three sub-parts in a multiple sub-part question, unless the student…

Q: What type of question is this what formula is used?   Given a sample with a mean of 151 and a…

A: Given,   Mean = 151 Standard deviation = 27

Q: A population has a mean μ=79 and a standard deviation σ=18. Find the mean and standard deviation of…

A:

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 17. Assume that…

A: Given Mean=100 Standard deviations=17

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

A:

Q: The distribution of SAT scores is normal with a mean of µ = 500 and a standard deviation of σ = 100.…

A: Obtain the SAT score separates the top 25% of the distribution from the rest. The SAT score…

Q: ← A population has a mean μ 156 and a standard deviation o=30. Find the mean and standard deviation…

A: simple formula of sample mean has used and solve.

Q: A given distribution has a population meanof 129 and a population standard deviation, of 12. What…

A: Mean = 129 Standard deviation = 12 Raw score, X = 75

Q: A distribution is given as X~U (2,10). What is the 75th percentile? What is the 40th percentile?…

A: It is given that the X follows Uniform distribution with a as 2 and b as 10. X ~ U (2, 10).

Q: A normal distribution of scores has a standard deviation of 10. Find the z-score fir the following…

A: Here the given information is A normal distribution of scores has a standard deviation of 10 i.e ,…

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.