Given a population where p = 0.10, find the standard deviation of the samping distribution when n = 500

Q: A normal distribution has mean 69.6 and standard deviation 4.05. Find the data value corresponding…

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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: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given data:  mean = 0°C and  standard deviation =  1.00°C.  Assume that the readings at freezing on…

Q: A sample is collected from the items produced by a company. The sample size is 49. The standard…

A: Answer: From the given data, Population standard deviation (σ) = 0.32 Sample size (n) = 49

Q: A sample has a mean M = 55. In the sample, a score of X = 48 corresponds to z = -1.20. What is the…

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Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given,μ=0σ=1 P(Z<z)=0.29

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

A: Solution:From the given information, normal distribution with population mean as 35 and standard…

Q: A sample has a mean M = 55. For the sample, the standard deviation is ? = 12 and the score…

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Q: A normal population has a mean μ = 34 and standard deviation σ = 10. What proportion of the…

A: normal distribution μ = 34σ = 10 P(x<51) = ?

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

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

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Q: Find the X value corresponding to z = +0.75 for a distribution with population mean of 90 and…

A: Solution: From given information, µ=90, σ=12 and z=0.75.

Q: A population has a mean μ=73 and a standard deviation σ=9. Find the mean and standard deviation of a…

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Q: what is the approximate number of students taking the exam?

A: given: Grades follow Normal with u= 75 and σ= 8 12 students got more than 90.…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 X~N (0, 1) Here X be a random…

Q: study of a population showed that​ males' body temperatures are approximately Normally distributed…

A: We have given that the Mean=98.3, Standard deviations=0.60

Q: Use the z table to find the value k so that 40% of the scores are greater than k.

A: Normal distribution is widely used in statistics . It is very useful in modern times .

Q: sample has a mean M = 89. In the sample, a score of X = 6 corresponds to z = 2. What is the standard…

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Q: Birth weights at a local hospital have a Normal distribution, with a mean of 110110 oz and a…

A:

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

A: Given dataMean = 35Standard deviation = 7.5

Q: During rush hour, the traffic speed on a busy highway is found to have mean 42 mph and standard…

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Q: For a sample with M = 90, a score of X = 88 corresponds to z = -1.00. What is the sample standard…

A: Solution-: Given: M=90, X=88, z=-1 We want to find the sample standard deviation?​

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

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Q: For a t distribution with 15 degrees of freedom, 90% of the distribution is within how many standard…

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Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: For the standard normal distribution, the Mean is 0 and the standard deviation 1. Draw the normal…

Q: A sample has a mean M = 55. In the sample, a score of X = 48 corresponds to z = -1.50. What is the…

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

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Q: Suppose that weights of 5th grade elementary girls are normally distributed with mean µ = 64 lbs and…

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

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Q: A normal distribution has a mean of 20 and a standard deviation of 2. What is the z value of 17.5?

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Q: the quality grade point averages of 300 college freshmen follow approximately the normal…

A: Given: X~N(μ,σ)μ=2.1σ=0.5 n=300

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given: Mean (µ) = 0oC Standard deviation (σ) = 1.000C X~N (0, 1)

Q: The distribution of the number of transactions per day at a certain automated teller machine (ATM )…

A: Mean(µ) = 80Standard deviations (σ) = 10X ~ N (µ, σ )= N(80,10)

Q: In a survey, the mean weight of 1005 rats was calculated to be 132 gr. The standard deviation of the…

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Q: A normal distribution has a mean of 54, and a sttandard deviation of 6. What is the probability of…

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Q: The fastballs follow a Normal distribution with mean μ = 92 mph and a standard deviation of σ = 2…

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Q: For a set of data, μ = 71, X=35, z = -0.60. What is the standard deviation of the population?

A: Given that.   X~N( μ , ?^2 )   μ=71   , ?=?  , X=35 , z=-0.60   Z-score =( x - μ )/?

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: A normal population has a mean μ = 40 and standard deviation σ = 8. What proportion of the…

A: NORMAL DISTRIBUTION ,μ=40σ=8 proportion of the population is between 37 and 48=?

Q: For a sample with a standard deviation of s=4, a score of X=35 corresponds to Z= -1.25. what is the…

A: Given,standard deviation(s)=4a score(X)=35Z-score=-1.25

Q: A population has a mean μ=88 and a standard deviation σ=28. Find the mean and standard deviation of…

A: Given,   Mean = 88 Standard deviation = 28   The mean and standard deviation of a sampling…

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.