Suppose that the population distribution of a variable (X) has a mean (μ) and a standard deviation (σ). If you randomly draw an infinite number of samples from the population, and if the sample size (N) is big enough, then the distribution of the sample means (X) has a normal distribution with a mean (μx = μ) and a standard deviation (σx =σ/√N).

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A: The sample mean = $19500.Sample standard deviation = $3800sample size = 361population mean =…

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A: Have solved your problem.Hope it helps you.All the best !!!Explanation:ANS)…

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A: As per our Q & A guideline, we can answer only three  sub questions.

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A: Given thatSample size (n) = 1100Mean (µ) = 29Standard deviation (σ) = 4

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A: I'm providing the solution below please do refer it and let me know if you have any queries…

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A: sample size(n)=2326No. of adults say they believe in UFOs=704confidence level=99%

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A: => They could have made a type I (alpha) error. A Type I error is whenwe reject a true Ho.…

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A: Given that,H0 : u ≤ 50H1 : u ≥ 50

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A: Mean = 4169.6Standard deviation = 186.0459Explanation:Step 1:From data we…

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Q: 1. If "C, = "C8, find "C₁7. 17

A:

Q: Please answer the question in the photo

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A: From the provided information,ABCTotalP204640106Q30244094Total507080200

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A: StockExpected ReturnStandard DeviationA8%55%B4%45%Correlation 1

Q: Please answer a,b,c,d. Ty!

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Q: Question 1: Problem Statement: In a semiconductor manufacturing facility, the thickness of silicon…

A: Data(x)725730735720732727733728722729734731726724730728723727732736725730735726731

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Q: 6

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Q: None

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A: a.The degrees of freedom is, .The confidence level is 90%.

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Q: The sale price of a certain model of grand piano across the country is approximately normally…

A: b ) Probability = 0.169273Explanation:Step 1: Step 2: Step 3: Step 4:

Q: 5. In a city, the weekly observations made in a study on the cost of the living index are given in…

A: Given the table of the weekly observations made in a study on the cost of the living index asCost of…