According to an IRS study, 30% of taxpayers can prepare, copy, and electronically file a 1040 tax form between 1.9 and 2.4 hours. A consumer watchdog agency selects a random sample of 29 taxpayers. What is the probability that, in a random sample of 29, 50% or more taxpayers complete form 1040 between 1.9 and 2.4 hours? Find the probability in the exercise. 4 decimal places.

Q: How are your grades? In a recent semester at a local university, 400 students enrolled in both…

A: given data  n(total) = 400 n(A in statistics) = 90 n(A in psychology) = 68 n(A in both) = 31

Q: At a certain University, the chance of a student receiving financial aid is 73%. 15 students are…

A:

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A: It is given that:

Q: (a) n = 5, X1 = 1. X,= 2, X3= 2, P1= 0.1, p,= 0.2. p3 = 0.7 The probability for the given…

A:

Q: A new medication has been found to relieve pain symptoms in 80% of people who take it. The…

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Q: Determine if the following probability experiment represents a binomial experiment. If​ not, explain…

A: Requirements of a binomial experiment are as follows: In binomial experiment each trial has two…

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.31%. A random sample of 31 of…

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Q: At a used-book sale, 100 books are adult books and 155 are children's books. Of the adult books, 74…

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A:

Q: In a certain classroom at Cal State LA, 63% of the students get less than the recommended amount of…

A: Given data, p=63%=0.63 If n=8 P(X=3)=?

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A:

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A:

Q: 65% of the people in Missouri pass the driver's test on the first attempt. A group of 7 people took…

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A:

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

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