A population of values has a normal distribution with = μ 77.6 and σ = 11.5. You intend to draw a random sample of size n = 68. Find the probability that a sample of size n = 68 is randomly selected with a mean greater than 80.7. 2.22289173 ✓

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A: The mean is 652, the population standard deviation is 1539 and the sample size is 32.

Q: A population has parameters μ = 230.1 and σ = 62.6. You intend to draw a random sample of size n =…

A: From the provided information,

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A: Population mean=81.1Population standard deviation=47.9

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A:

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Q: Hanny

A: a) PDF of Xf(x)=6xe−3x2,x≥0b)mean =0.5118median=0.4807mode=0.4082Explanation:

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A:

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A: 0.0853Explanation:For the sample of 34 items, the sample mean μxˉ​ will be the same as the…

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A:

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Q: Please show a step-by-step solution. Please do not skip steps.

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A: Number of trail n=10Probability of success p=0.22X~Bin(n,p)nCx=n!/x!(n-x)!