A 2020 Pew Research poll found that 65% of U.S. adults believe that President Donald Trump was too slow to make major steps to stop the spread of the coronavirus. Let's assume that 0.65 is the population proportion. Suppose random samples of 150 U.S. adults are randomly selected, and the proportion of each sample is found. What is the probability that a randomly selected sample proportion will be greater than 0.69? Round the standard error to 3 decimal places and your final answer to two decimal places.

Q: A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be…

A:

Q: A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010…

A:

Q: Find the full probability distribution of the number of correct answers that Simon can get. Then…

A: It is given that the random variable i.e, the number of correct answer follows Binomial distribution…

Q: About 4% of the population has a particular genetic mutation. 300 people are randomly selected.…

A: From the provided information, About 4% of the population has a particular genetic mutation that is…

Q: Find the standard deviation for the number of people with the genetic mutation in such groups of…

A: Let p be the proportion of the people with the genetic mutation. Given that p = 2% =  0.02Let X…

Q: In a survey of a group of men, the heights in the 20, 29 age group were normally distributed with a…

A:

Q: Suppose that in a large population of women (aged 20 to 29-years-old) that the mean serum…

A: Mean()=183standard deviation()=37sample size(n)=60

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: About 3% of the population has a particular genetic mutation. 500 people are randomly selected. Find…

A: n=500 p=0.03 A random variable X~Binomial(n=500  ,  p=0.03)

Q: unt of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavaliershows that…

A: The standard deviation of 40 mechanics is selected, the standard deviation of the sampling…

Q: A 2019 Pew Research poll found that 73% of U.S. adults believe that the economic gap between the…

A: Here, n = 150 and p = 0.73.

Q: Suppose you draw a random sample of 100 observations from a population with a variance = 25. What is…

A:

Q: The average unemployment rate in California in August 2020 was 11.4%.  Assume that 550 employable…

A: The expected value of the number of people in the sample who were unemployed.

Q: Assume the values of accounts receivable by a corporation are distributed with a true mean of…

A:

Q: Approximately 38,500 miles is the design life of a prototype vehicle tire, with a standard variation…

A: Solution Given population mean (μ) =38,500 miles population standard deviation (σ) 2,500 miles N= 5…

Q: A courier company that operates in the Tijuana metropolitan area takes an average of 36 minutes to…

A: Answer: From the given data, Let X denotes delivery time of a courier company that operates in the…

Q: Suppose you are an environmental researcher for an organization. As part of your research, you…

A: Givensample size(n)=43Mean(μ)=381standard deviation(σ)=31

Q: About 70​% of all female heart transplant patients will survive for at least 3 years. Sixty female…

A: Given n=60 Population proportion=0.70 p=0.66

Q: In an certain species of newt, offspring are born either green or black. Suppose that 50% of these…

A: Here sampling distribution of proportion is normal because sample size is too large

Q: a. Which is the explanatory variable? b. Make a scatterplot. Is the association between these…

A: Here dependent variable is carbon dioxide  The Independent variable is the Year. The data is given…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: Find the standard deviation for the number of people with the genetic mutation in such groups of…

A:

Q: One source approximates that 39% of Canadian nationals identify as Catholic, 73.4% of Mexican…

A: Given information: PC|Can=0.39. PC|Mex=0.734. PC|Ame=0.211 The event C indicates the selected people…

Q: About 7% of the population has a particular genetic mutation. 500 people are randomly selected. Find…

A:

Q: About 78​% of all female heart transplant patients will survive for at least 3 years. Ninety…

A: From the given information, the sample size is 90 and the  proportion is 78%. The mean of the sample…

Q: About 5% of the population has a particular genetic mutation. 400 people are randomly selected.…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: I scored in the 98th percentile on an achievement test last year. The test scores were normally…

A: Solution: Let X be defined as the test scores on an achievement test. 98th percentile is the value…

Q: Suppose that you have obtained data by taking a random sample from a population. Before performing a…

A: For a random sample that is selected from a population, the following steps have to be done in order…

Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

A: Given information- For the year 2001- Population mean, µ = $235 Population standard deviation, σ =…

Q: It is known that the prevalence of Tuberculosis in a community is 9% what would be the probability…

A: given data P(tuberculosis) = p = 0.09sample size (n) = 10x = no. of individual with tuberculosisP(x=…

Q: In a certain country, the average age is 31 years old and the standard deviation is 4 years. If we…

A:

Q: Suppose that, in an experiment of casting a single die, six outcomes (X) are equally likely.…

A: Given,a single die is rolled than the possible out comes areS={1,2,3,4,5,6}Let X is the number on…

Q: will apply for graduate school. If the population standard deviation is 10 and the sample size is…

A: Given that  Population proportion p=25%=0.25 Sample size n =100

Q: About ​80% of all female heart transplant patients will survive for at least 3 years. Seventy female…

A: Given information Probability that female heart transplant patients will survive for at least 3…

Q: According to PSA, the probability of a randomly selected 90-year old Filipino survives for at least…

A: Given information: n=20p(success=survive another year)=82% or 0.82q(failure= not survive another…

Q: An online retailer operates two independent warehouses (A & B) where it keeps its inventory. Each…

A: Solution: given that Each warehouse has a .05 probability of experiencing a fire. If a fire is…

Q: A government sample survey plans to measure the total cholesterol level of an SRS of men aged 20-34.…

A: Note: As it is not logical that “the probability that x falls within + or -2 milligrams per…

Q: A 2006 Toyota Echo has a mean gas mileage of 32 miles per gallon (mpg) with a standard deviation 5…

A: Given that: X is normally Distributed with mean µ = 32.0 and standard deviation σ = 5.0 By using…

Q: A racing car consumes a mean of 103 gallons of gas per race with a variance of 36. If 38 racing…

A: The probability of the sample mean would be greater than 101.5 gallons is 0.9382 and it is obtained…

Q: Suppose we are interested in the mean burning rate of a solid propellant, a random variable that can…

A:

Q: From 1200 accounts receivable, an auditor randomly draws simple random sample of size 40. The…

A: The data is normally distributed since the sample size is greater than 30 taken from a simple random…