Consider the experiment of a worker assembling a product.a. Define a random variable that represents the time in minutes required to assemblethe product.b. what values may the random variable assume?c. Is the random variable discrete or continuous?

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Q: what is the probability that x<70?

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Q: Given a binomial random variable x and p = 0.2, find the mean for a sample size of 15.

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Q: 1. Identify whether the following statement is a random variable or not: i. The number of integrated…

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Q: 3. Find the mean and variance of the random variable using the values in the table below. f(x) 0.25…

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Q: Given that Z is a standard normal random variable, P(-1≤Z≤1.5) is?

A: Using the excel following standard normal probabilities can be obtained as:

Q: Is the random variable given in the accompanying table discrete or continuous? Explain. Number of…

A: Here data giving that number of girls and its probabilities.

Q: Given the normally distributed random variable x with μ =25 and P(x ≤ 10) = .0778, find σ.

A: Given,mean(μ)=25P(X≤10)=0.0778

Q: of the random variable K repres envoys of the random variable B.

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Q: d. a simple random sample of 40 auto insurance policies, find the probability that the average cost…

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Q: Find the expected value for the random variable. 9. 12 15 18 21 P(z) 0.11 0.25 0.39 0.16 0.09 E(z) =…

A: Formula : E(z) =  Σz * p(z)

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Q: If X represents a random variable coming from a normal distribution and P(X 8.7) = 0.37. %3D True…

A: P(X &lt; 8.7) = 0.63 P(X &gt; 8.7) = 0.37

Q: A random sample of 110 high school graduates from Fremd High School was surveyed to find out if they…

A: Given that, A random sample of 110 high school graduates from Fremd High School was surveyed to find…

Q: Given that Z is a standard normal random variable, what is the value of Z if the area to the left of…

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Q: Find the expected value for the random variable. 21 12 9. 15 18 P(z) 0.12 0.21 0.41 0.18 0.08 (Type…

A: The expected value or mean of z is as follows:

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Q: Please do answers from g- h thank you

A: The formula for mean, variance and standard deviation of a random variable X is given by:

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A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: 5. If z is a standard normal random variable, find the value of c: P(z < c) = 0.5557

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Q: Given the standard normal random variable​ Z, find ​Pr(−2.06​≤ Z​ ≤1.76​).

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Q: The random variable ?, which is the number of telephones coming to a telephone exchange in a…

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Q: a. How many treatments were used in the experiment?

A: The degrees of freedom for treatments is given by Df(treatments) = 4

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Q: If z is a standard normal variable, find the probability that z is between -2.07 and 3.28

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A: Consider the calculations in the table given below:

Q: Given that z is a standard normal random variable, find z for each situation.a. The area to the left…

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Q: variable, what is the value of Z if the area to the right of Z is 0.7054?

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A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION  here use central limit theorem

Q: Given that z is a standard normal random variable, find z for each situation.a. The area to the left…

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Q: 3) Do people drive more slowly on tree-lined street? In the following table x is a random variable…

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Q: For a standard normal random variable Z, what is the value of k such that P(Z>k)=0.8790?

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Q: A sales manager for a large department store believes that customer spending per visit with a sale…

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Q: If P(-2 <Z <k) = .6, where Z is a standard normal random variable, what is the value of k?

A: We need to find k such that

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.