Suppose x has a distribution with u = 30 and o = 22. A USE SALT (a) If a random sample of size n = 36 is drawn, find uz, o ; and P(30 sis 32). (Round o, to two decimal places and the probability to four decimal places.) P(30 sxs 32) = (b) If a random sample of size n = 64 is drawn, find u- oz and P(30 s x s 32). (Round o - to two decimal places and the probability to four decimal places.)

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Q: Suppose that 64% of all voters prefer the Democratic candidate. Let X be the number of people who…

A: p=0.64n=37we have to find out the distribution of x and probability for the given data.

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A: Frequency histogram is shown in the graph.a) There are more than 500 values in this sample.b) The…

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A: X is a random  variable  mean=17 standard deviation=16 We know that Z=x- mean/standard deviation z…

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A: Given Information:  Mean (u) = 15  Standard deviation (s) = 9

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A:

Q: Suppose that your sample size was 37, what is P(t<-1.74) (Negative 1.74)?

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A:

Q: Suppose x has a distribution with ? = 15 and ? = 14  (a) If a random sample of size n = 39 is…

A:

Q: A normal distribution has a mean of u= 100 with o = 20. If one score is randomly selected from this…

A: Mean = 100 Standard deviation = 20

Q: Suppose x has a distribution with ? = 10 and ? = 3. If a random sample of size n = 71 is drawn,…

A: Solution-: Given: μ=10, σ=3, n=71 We find, (a) μX¯=? , σx¯=? (b) P[10≤&lt;X¯≤12]=?

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A: Givenn=400p=0.2x~Binomial(n=400,p=0.2)P(X=x)=Cxn px (1-p)n-x     ; x=0,1...,n

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A: From the given information we find the solution.

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A:

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Q: Suppose the random variableX follows a normal distribution with mean 80 and variance 100. Then the…

A: Given Mean μ=80 Variance =100 Standard Deviation σ=variance =100=10 Probability =0.6826

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Q: Suppose x has a distribution with ? = 20 and ? = 14.  If a random sample of size n = 73 is drawn,…

A: Given:           Mean = µ = 20     Standard Deviation = σ = 14   Sample Size = n = 73   x ~…

Q: Suppose x has a distribution with ? = 19 and ? = 14. (a) If a random sample of size n = 46 is…

A: The mean and standard deviation are 19 and 14.

Q: 3) Let X be random variable represents the weights of the vehicles follows the normal distribution…

A: The variable X follows normal distribution with μ=9099 kg and σ=19 kg.

Q: Suppose x has a distribution with ? = 14 and ? = 9. (a) If a random sample of size n = 38 is drawn,…

A: The random variable X follows normal distribution. The population mean is 14. The population…

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A: Here, given that Suppose we are about to draw a random sample of n values from a distribution where…

Q: Q15. The sampling distribution of the mean is the hypothetical distribution of means from all…

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A: We have to find null and alternative hypothesis.

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Q: 2% of the world population is naturally blond. In a random sample of 100 people, the proportion of…

A: Givenp=0.02n=100