A simple random sample size of n=81 is obtained from a population that is skewed right with u=81 and O=27  describe the sample distribution of x what is p(x>85.95) what is p(x>74.1) what is p(77.7

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A: The given population consists of the values: 6, 8, 9, 12, 15. The size of the population is, N=5.…

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A:

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

A: The given data is as follows: For children, The sample size is 9, sample mean is 2.9 hours and the…

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A: The probability density function of the Poisson distribution is given as: where y=0,1,2,...

Q: The average age of dogs owned by residents in a small retirement community is 7.5 years with a…

A:

Q: Suppose a random sample of size n will be selected from a large population with mean and standard…

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A: a. Level of significance The level of significance is defined as the probability of rejecting a null…

Q: An unknown distribution has a mean of 45 and a standard deviation c Samples of size n = 30 are drawn…

A: X

Q: SAT scores in one state is normally distributed with a mean of 1590 and a standard deviation of 176.…

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A:

Q: A river where drinking water is taken is feared to have been polluted by coliform bacteria In order…

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Q: busy restaurant on Wednesdays follows a Normal distribution with mean 4,365 and standard deviation…

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Q: i. var (VSRSWOR): = N-125² Nn

A: We need to show that:-

Q: What are the boundaries for the middle 50% of all possible random samples of n = 25 scores selected…

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Q: SAT scores in one state is normally distributed with a mean of 1572 and a standard deviation of 184.…

A: Given:                             Mean µ = 1572                             Standard Deviation (σ)…

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

A: The formula for calculating the z- test statistic for two sample means is, The summary of the…

Q: The average wait time to get seated at a popular restaurant in the city on a Friday night is 14…

A: Given that average wait time to get seated at a popular restaurant in the city on a Friday night is…

Q: A random sample of size 36 is taken from a population with mean 50 and standard deviation 5. Find P(…

A: From the given information,Mean = Standard deviation , Sample size , n = 36 We have to find , P (…

Q: sample is selected from a population with mean ? = 99 and standard deviation ? = 10. For which of…

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Q: The number of customers served at a busy restaurant on Wednesdays follows a Normal distribution with…

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Q: SAT scores in one state is normally distributed with a mean of 1532 and a standard deviation of 200.…

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Q: Suppose data X1, ..., Xn are sampled from the population, sample mean is a random variable

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Q: 1, Do males and females differ with respect to the type of degree earned? A random sample of 1,005…

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Q: A normal distribution of san diegans class has ages with μ=40 and σ =18. A random sample 9…

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Q: Construct the sampling distribution of the mean based on all possible samples of size n = 2, drawn…

A: Given that Sample size n = 2 Population size N = 4 Then number of possible samples are 4C2 = 6

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

A: Given: n1 = 9, x1 = 2.9, s1 = 0.7  n2 = 9,  x2 = 2.2, s2 = 0.5

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

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Q: 99% 0.01 0.005 2.576 ng this table, the necessary value for z2 for a 95% confidence level is

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Q: be -2.8. Determine the P-value for the test.

A: Here given, Sample size n = 79 Test statistic = -2.8

Q: SAT scores in one state is normally distributed with a mean of 1409 and a standard deviation of 40.…

A: Given: μ=1409 and σ=40. a)Then,P(X&lt;1400)=PX-μσ&lt;1400-μσ=PZ&lt;1400-140940=PZ&lt;0.23=0.4090

Q: he average wait time to get seated at a popular restaurant in the city on a Friday night is 12…

A: The average wait time to get seated at a popular restaurant in the city on a Friday night is 12…

Q: REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has both…

A:

Q: A chi-square homogeneity test is to be conducted to decide whether a difference exists among the…

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Q: A simple random sample of size n=64 is obtained from a population with μ=80 and σ=24. ​Describe the…

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Q: 0.5, 1.5] (very high accuracy is not required) using both histograms! Based on the shapes of the…

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Q: Do the part d, e, f and g only  tha

A: &gt; simulateuniform&lt;-runif(1000, 0, 1)&gt; &gt; simulateuniform   [1] 0.139715537 0.125109892…

Q: SAT scores in one state is normally distributed with a mean of 1403 and a standard deviation of 64.…

A: Given: μ=1403σ=64n=56 a) The probability that one of the scores in the sample is greater than 1404…

Q: Suppose a random sample of size 1000 is selected from a large population where the population mean…

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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.