A population of values has an unknown distribution with μ=109.2μ=109.2 and σ=15.3σ=15.3. You intend to draw a random sample of size n=88n=88. What is the mean of the distribution of sample means? μ¯x=μx¯= ____________ (Please enter an exact answer.) What is the standard deviation of the distribution of sample means? σ¯x=σx¯=_____________  (Please report your answer accurate to 2 decimal places

Q: You measure 39 turtles' weights, and find they have a mean weight of 34 ounces. Assume the…

A: we have to find given ci.

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A: Solution:From the given information, k value is 22, standard deviation of points is 4 and mean…

Q: Water Temperature If the variance of the water temperature in a lake is 30°, how many days should…

A: According to the given information, we have Variance = 30 Margin of error = 4 Confidence level = 95%

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A: The normal curve is a symmetric curve which has a bell shape.

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A: Given: The random variable X is the number of courses taught per semester by the university…

Q: Find the mean and standard deviation for each uniform continuous model. Note: Round "Mean" answers…

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Q: A population has mean u = 18 and standard deviation o = 5. Round the answers to two decimal places…

A: Given that,Mean = 18Standard deviation = 5

Q: The value of the test statistic is ______________

A:

Q: The standard deviation of a variable is 10. If a sample of 75 individuals is selected, Part: 0 / 2…

A: We have given thatstandard deviation()=10sample size(n)v= 75

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Q: X P 0 .25 2 .25 6 .25 8 .25   calculate the mean of variable x.    calculate the standard…

A:

Q: A variable X has a mean of 172 and a standard deviation of 27. For a sample of size 47, state the…

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Q: X 3 P(X) 0.20 0.32 0.42 0.02 0.04 0 Part: 0/3 Send data to Excel Part 1 of 3 1 Mean: u= 2 4 Find the…

A: The question is about discrete probability distribution.Given :

Q: IQ scores have a mean of µ=100 in the general population, and have a standard deviation of σ=15. You…

A:

Q: _______________ measures the size difference in mu in terms of standard deviation.

A: Z-score: It is a standardized score which measures the value's difference from its mean in terms of…

Q: A variable of a population has a mean of μ=300μ=300 and a standard deviation of σ=63σ=63. The…

A:

Q: n 1940 the average size of a U.S. farm was 174 acres. Let's say that the standard deviation was 59…

A: Given that μ=174, σ=59 n=46 Distribution of X¯: X¯~Nμ,σnX¯~N174,5946X¯~N174, 8.70

Q: You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based…

A: formula for the sample size needed to estimate a population mean is

Q: IQ scores have a mean of µ=100 in the general population, and have a standard deviation of σ=15. You…

A: Given µ=100 and σ=15 n=25 Px¯≤78=Px¯-μσn≤78-μσn               =Pz≤78-1001525             =Pz≤-7.3333…

Q: Claim: The standard deviation of pulse rates of adult males is more than 10 bpm. For a random sample…

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Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: σ=21.9E = 1.595% confidence level

Q: A distribution of values is normal with a mean of 158.2 and a standard deviation of 29.9.   Find…

A: Use excel formula "=NORM.S.INV(0.84)" to find the z-score.

Q: Measuring lung function: One of the measurements used to determine the health of a person's lungs is…

A: Given: μ=2.1σ=0.5n=70x¯=2.03 Hypothesis: Null hypothesis: H0: μ=2.1Alternative hypothesis: H1:…

Q: Trap spacing measurements (in meters) for a sample of seven teams of red spiny lobster fisherman are…

A: Hi thank you for posting this question,  As per policy we have solved first three sub parts for you.…

Q: Calculate the standard deviation of X. X 3 7 P(X) 0.4 0.6

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Q: 452 X2 345 CO

A: Mean and standard deviations

Q: 0 1 2 3 Xj РX - х) 0.20 0.30 0.40 0.10 What is the standard deviation of X? 0.840 0.090 1.345 0.917

A: Obtain the value of the standard deviation. The value of the standard deviation is obtained below:…

Q: Use the following information to answer problems 13 and 14. Cholesterol levels among 14-year-old…

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Q: ou want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: Solution: Given information: Population standard deviation= σ=43.2   Margin of error = E= 5  Level…

Q: Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost…

A: Margin of error(E)=0.16Standard deviation()=0.48

Q: Frequency of x mean = i 200 180 160 140 120 500 520 540 560 X Estimate the mean and the standard…

A: Here the given tablet is we have to find the mean and standard deviation.

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: From the provided information, Population standard deviation (σ) = 24.7 Confidence level = 95%…

Q: An unknown distribution has a mean of 100, a standard deviation of 100, and a sample size of 100.…

A: Population mean =100 Population standard deviation =100 Sample size n =100

Q: Find the variance and standard deviation for the population use the definitional formula:

A: Given that,The dataset contains 6 observations,Population size To find the variance and sd of the…

Q: A population has a mean u= 89 and a standard deviation o = 18. Find the mean and standard deviation…

A: Random Sampling: if a sample is drawn from a given population in such a manner that each member of…

Q: A variable of a population is normally distributed with mean μ and standard deviation σ. For samples…

A: Let (1-α)×100=99.7⇒α=0.003. Then, we know that a 99.7% Confidence interval for μ is given by…