Suppose that in the population twenty out of twenty-five Armenian companies are expecting bad economic times for the year of 2021. If you do a sample of 25 Armenian companies, what is the probability that the proportion of companies that expect bad economic times will be more than 0.79 (round to 3 decimal places)?

Q: If probability of choosing a red chip from a bucket is 0.39, what is the probability of not choosing…

A: Answer: From the given data, Let A is the event of choosing a red chip from a bucket The probability…

Q: So the Probability of the athlete beating a hill time of 2.27 seconds on 4 or more of the 10 gate…

A:

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 42 out…

A: Number of trail n=350Probability of success p=0.15

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 54 out…

A: Given that  Sample size n =450 Population  proportion p =0.15

Q: Suppose that 65% of all dialysis patients will survive for at least 5 years. In a simple random…

A: given data p(survive atleast five year) =p  = 0.65sample size (n) = 100P(p^>0.80) =?

Q: A researcher knows that number of people having a rare gene is on average 0.5 per  1000 people. Find…

A: Given that  The number of people having a rare gene is on average per 1000 people = 0.5 The number…

Q: Suppose 56% of politicians are lawyers. If a random sample of size 564 is selected, what is the…

A: From the provided information, 56% of politicians are lawyers that is p = 0.56 Sample size (n) = 546

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 54 out…

A: The objective of this question is to find the probability that fewer than 54 out of a random sample…

Q: A grocery clerk can serve 20 customers per hour on average and the service time follows an…

A: We have givenλ = 20/60 = 1/3 = 0.33 per minute X ~ Exponential (λ) Since we know that Cdf of…

Q: Suppose 58% of politicians are lawyers. If a random sample of size 681 is selected, what is the…

A: It is given that n =681 and p =0.58.

Q: Suppose that on the average, 8 students enrolled in a small liberal arts college have their…

A:

Q: Suppose the life spans of a particular brand of car battery are normally distributed with a mean of…

A: We have given that  Mean=45.3

Q: If the time between calls in a call center follows an Exponential Distribution with mean 5 minutes,…

A: Given: mean (μ)= 5 minutes λ=15 per minute

Q: If 25 male college students are randomly​ selected, find the probability that their mean weight gain…

A: It is given that the mean is 1.2 and standard deviation is 5.6.

Q: Suppose 56% of politicians are lawyers. If a random sample of size 564 is selected, what is the…

A: Given: 56% of politicians are lawyers that is proportion (p) = 0.56 Sample size (n) = 564

Q: According to the information that comes with a certain prescription drug, when taking this drug,…

A: Given: P(N)= 0.19 P(D)=0.53 P(N and D) = 0.13 We are required to find the probability that one is…

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 48 out…

A:

Q: If the estimated mean of crashes at intersection is 10, what is the probability of having 5, 10 and…

A: Given the estimated mean of crashes at an intersection is; μ=10 Let, X = The number of crashes next…

Q: The time between two telephone calls that arrive at a Police station is often modeled as an…

A: Exponential distribution is a continuous probability distribution. This indicates the time between 2…

Q: Suppose that 60% of all California motorists are insured. Find the probability  that more than 55%…

A: given data  P(insured) = p = 0.60 sample size n = 100 P(p^>0.55) = ?

Q: Suppose the time it takes a cashier to serve a customer follows an exponential distribution with a…

A: given data service time : μ = 3 minutes λ = 13 per minute

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 30 out…

A: The question is about normal approximation.Given :Proportion of adults in a country work from home (…

Q: If 15% of adults in a certain country work from home, what is the probability that fewer than 60 out…

A:

Q: According the World Bank, only 8% of the population of Uganda had access to electricity as of 2009.…

A: Binomial distribution : Binomial distribution describes the possible number of events occurs in…

Q: Suppose 51% of the population has a retirement account.   If a random sample of size 530 is…

A: Using ‘normal approximation conditions’ check whether the proportion can be approximated to normal…

Q: It is estimated that 3.5% of current high school seniors will live past their 90th birthday. If a…

A:

Q: If 23 percent of all patients with high blood pressurehave bad side effects from a certain kind of…

A: Normal approximation to the binomial: From the given information, sample size, n = 120. The…

Q: Suppose 50 % of politicians are lawyers. If a random sample of size 518 is selected, what is the…

A: Consider that p is proportion of all politicians.

Q: Suppose that on the average, 8 students enrolled in a small liberal arts college have their…

A: Let us consider X as the number of students enrolled in a small liberal arts college have their…

Q: Suppose that 24% of US adults favor an increase in taxes.  What is the probability that in a group…

A: According to the given information, we have Sample size, n = 8 Given that 24% of US adults favor an…

Q: Suppose the late time can be modeled as an exponential distribution with mean 3.5 minutes. If this…

A: given data exponential distributionx=late time P(X>x)=e-λxP(X≤x)=1-e-λxμ=3.5minutes∴λ=13.5 per…

Q: Q1. If the average number of suicide in Bollywood is 3 per year, what is the probability that…

A:

Q: Suppose that on the average, 7 students enrolled in a small liberal arts college have their…

A: Let X=no.of enrolled in a small liberal arts college have their automobiles stolen during the…

Q: According to the Turkish Ministry of Health, the probability of a woman developing breast cancer…

A: Given: p=probability of developing cancer=1/5P(3 women out of 15 will develop breast cancer)=?

Q: Suppose that on the average, 3 students enrolled in a small liberal arts college have their…

A: Given The data is as follows: On avg., 3 small liberal arts college students who have their…

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.