According to a government statistical​ organization, the unemployment rate for workers aged 22 to 25 in April 2018 was 5.7​%. Consider a random sample of 90 workers from this age group. a. What is the probability that 6 or fewer will be​ unemployed? b. What is the probability that 3 or fewer will be​ unemployed? c. What is the probability that between 3 and 9 of them will be​ unemployed?

Q: Refer to the sample data for​ pre-employment drug screening shown below. If one of the subjects is…

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Q: 4. Sampling Probability Assume that 53% of Americans believe that the pandemic will end by…

A: Note: As per the instructions, solving first three subparts. Kindly repost the remaining questions…

Q: ontribute to household expenses. 23% of them contribute. a.      What is the probability that at…

A: NOTE:  As per the guidelines, we are supposed to solve the first three sub parts only. Given:…

Q: An ice-cream flavour survey of 720 people revealed that 300 people liked green tea, 260 people liked…

A: As per our guidelines we are suppose to answer only one question.Let G= People liked green…

Q: In circuit board testing, the chance that a particular diode will break is 0.01. Suppose a circuit…

A: Let, X=the number of diodes that break n=number of trial= 200 p=probability of success= 0.01 X…

Q: What is the probability that 15​,16​,17​,18​, or 19npeople in the sample are in favor of retaining…

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Q: 3. A construction crew is building a new bridge. A structural component has a 15% chance of failing…

A:

Q: 2. Mary Peterson works at a local bank. She finds that sixty percent of all loan request received…

A:

Q: 3. At the time of the Avery case, there were 165,814 African-Americans in the Fulton County…

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A: Given: Population proportion P= 0.12 Q = 1-P = 0.88 n=  410 sample proportion p = 0.14

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A: Given that N=140

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A:

Q: 2. A survey of publishing jobs indicates that 92 percent are completed on time. Assume that three…

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A: Let X = number of flights arrive on time. X ~ Binomial(n = 200, p = 0.85)

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A: Number of true negatives (TN)   = 29 Number of False positive  (FP)= 10

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A:

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.