For a sample of n = 75, the probability of a sample mean being greater than 222 if u =221 and o = 6.2 is (Round to four decimal places as needed.) Would the given sample mean be considered unusual? The sample mean be considered unusual because it V within the range of a usual event, namely within of the mean of the sample means.

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A: It is given that, There is a normal population  with µ = 40 and σ = 18 i.e. X~N(40,182) A random…

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A: Solution: From the given information, the probability distribution of X is

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A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: 2. For a nomal population with u = 100 and o =15, a. what is the probability of obtaining a sample…

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A: Given: n=3 dice μX¯=3.5 σX¯=1.713

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A: Given information: The sample size is n = 21. The hypothesized proportion is p = 0.34.

Q: For a normal population with m = 100 and s = 20  a. What is the probability of obtaining a sample…

A: Given: For a normal population with  = 100  = 20

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Q: Suppose a survey by the Department of Roads in 2019 revealed that 60% of the vehicles travelling on…

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Q: 4. For a normal population with u = 100 with a- 20, a. What is the probability of obtaining a sample…

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Q: A sample of n =32 is selected from a normal population with M = 60,         σ = 20.  What is the…

A:

Q: A sample of n 12 scores is selected from a normal population with u = 50 and o = 10. a. What iš the…

A: Given that, Mean = 50 Standard deviation = 10 Sample size = 12

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A: It is an important part of statistics. It is widely used.

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A: Given - Database of 50,000 people Probability (two DNA profiles match by chance) = 140,000= 0.000025

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Q: A random sample of n = 65 observations is selected from a population with a mean of 25 and s = 16.…

A: Given: σ = 16 n = 65 μ = 25

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A: The odds in favor of a win is 81 to 19.

Q: 2. For a normal population with u=100 and o=15, %3D a what is the probability of obtaining a sample…

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Q: Given anormal distributionwith µ=50 and σ=5, if you select a sample of n=100, what is the…

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Q: A sample of n = 100 scores is selected from a normal population with µ = 75 and σ = 11. The…

A: Given data n=100μ=75σ=11M=78

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Q: 1) The population of SAT scores is normal with u 500 and a- 100. If you get a sample of n 25…

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A: Mean = 78 Standard deviation = 18 Sample size, n = 36

Q: A random sample of n=16 scores is obtained from a normal population with μ=38 and σ=8. What is the…

A: Let us consider, X represents a normal population with μ=38 and σ=8.  Thus, X~N(38,82). We have a…

Q: For a particular population, a sample of n = 4 scores has an expected value of 10. For the same…

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