According to the May 16,2017 report by Pew Research, 45% of US adults say solar energy is very effective in minimizing air pollution. A sample of 160 U.S adults are surveyed. Let p be the sample proportion of Americans who believe solar energy is very effective in minimizing air pollution. 1. What is the population proportion? 0.45 (decimal form) 2. What is the sample size? 160 3. Can the normal approximation be used with this distribution? 4. What is the mean of the sampling proportion? 0.45 5. What is the standard deviation of the sampling proportion? (Round to 4th decimal place) 6. What is the probability that no more than 76 U.S adults of the 160 surveyed believe solar energy is very effective in minimizing air pollution? What is p? |(decimal form) What is the z-score? |(Round to the hundredths place) What is the probability that no more than 76 U.S. adults of the 160 surveyed believe solar energy is very effective in minimizing air pollution? |(decimal form)

Q: The credit card payment, PaymentAmt, made last month by 100 credit card holders was obtained and…

A: let X = the credit card payment, PaymentAmt, made by credit card holders. Mean = 158.5 SD = 65.59

Q: Companies who design furniture for elementary school classrooms produce a variety of sizes for kids…

A: Given that, Mean = 39.2 Standard deviation = 1.9 Let X follows Normal distribution with mean 39.2…

Q: Companies who design furniture for elementary school classrooms produce a variety of sizes for kids…

A: Given : -

Q: A random sample of 1009 adults in a certain large country was asked "Do you pretty much think…

A: Given,  X = 534 n = 1009       To find, a) Point estimate for the opulation proportion ? b. Verify…

Q: Do the poor spend the same amount of time in the shower as the rich? The results of a survey asking…

A: Given n1=11 n2=12

Q: Larger values of sigma would result in a normal distribution curve that is ______ . Uniform

A: Normal distribution have two parameters as µ and σ. µ is location parameter and σ is scale…

Q: Suppose the normal curve below is about the distribution of books in the library that are found to…

A: a) From the graph we get the mean= 470 b) And standard deviation = 590 - 470 = 120

Q: A random sample of 1026 adults in a certain large country was asked "Do you pretty much think…

A: Given :  n = 1026 x = 515

Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's…

A: It is given that out of 115 employees, it is found that 32 have a bachelor’s degree or higher. The…

Q: Which of the following characteristics does not apply to a theoretical normal distribution? The…

A: Theoretical normal distribution is given.

Q: A manufacturer of automobile batteries claims that the distribution of the lengths of life of its…

A: a) Define a random variable X, that is the length of life of automobile battery.

Q: Consider a one-sample hypothesis test of the mean of a normal distribution. Which of the following…

A: type one error (α)=P(reject H0/H0 is true)type two error (β)=P(accept H0/H1 is true)power of…

Q: Students at a major university are complaining of a serious housing crunch. Many of the university's…

A: Given that, (A) The values of k is, From chebyshev’s inequality, Therefore, at least 75% of the…

Q: A medical investigation claims that the average number of infections per week at a hospital in…

A: Let us first state the hypotheses and find what we need to prove Let us assume that  H0: μ=16.3.…

Q: A government agency provides the number of miles that residents of the 75 largest metropolitan areas…

A: The random variable X follows normal distribution. There are two samples of data which are named as…

Q: A random sample of 1017 adults in a certain large country was asked "Do you pretty much think…

A: From the provided information, Sample size (n) = 1017 From which 515 indicated that televisions are…

Q: According to data from the 2010 United States Census, 64.2% of Americans in Susanville, CA were…

A: 64.2% of Americans in Susanville, CA were male, p = 0.642 Sample size, n = 100 Among the sample, 54…

Q: In a recent study, the Centers for Disease Control reported that diastolic blood pressures (in mmHg)…

A: Given that, Mean=80.5 Standard deviation=9.9

Q: For a normally distributed sample, the mean is 316.14. What is the mode? For a positively skewed…

A: We know normal distribution is symmetrically distributed. Therefore the mean is equal to mode.…

Q: Using Chebyshev’s Theorem, determine the minimum percentage of observations from a distribution that…

A: From the provided information, The observations from a distribution expected to fall within 3, 3.5…

Q: According to the May 16,2017 report by Pew Research, 68% of US adults say solar energy is very…

A: 1. 68% of the US adults say solar energy is very effective in minimizing air pollution. That is…

Q: Normal Approximation According to the May 16,2017 report by Pew Research, 68% of US adults say solar…

A: Comment: There are more than 3 subparts, according to guidelines we are allowed to solve only the…

Q: A random sample of 1015 adults in a certain large country was asked "Do you pretty much think…

A: For the given data Find all the required blanks

Q: If all other quantities remain the same, how does the indicated change affect the minimum sample…

A: Given Information: If all other quantities remain the same, how does the indicated change affect the…

Q: According to the May 16,2017 report by Pew Research, 45% of US adults say solar energy is very…

A: ** Due to Guidelines from Bartleby experts are only allowed to answer first 3 sub parts of a…

Q: A random sample of 1009 adults in a certain large country was asked "Do you pretty much think…

A: From (c), we get 95% CI : (0.498,0.560)  it is for those who think television are luxury.

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: (3) Determine whether the normal approximation can be used with the given distribution or not?…

Q: The ICU Admission dataset includes a variable indicating the age of the patient. Find and interpret…

A:

Q: n a​ poll, 37​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: The following information has been given: Sample Proportion : p^=0.37 Margin of error : E=0.05

Q: Assume the speed of vehicles along an open stretch of a certain highway in Texas that is not heavily…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What term is used to identify the standard deviation of the distribution of sample means? Oa. the…

A:

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

A:

Q: A random sample of 1009 adults in a certain large country was asked "Do you pretty much think…

A: we know that if n number of sample surveyed and X individuals have respond in favour of success.…

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U response to reports…

A: Note: As per the guidelines, we are only allowed to solve three subparts, please post the other…

Q: A random sample of 1026 adults in a certain large country was asked "Do you pretty much think…

A: Given : A random sample of 1026 adults in a certain large country was asked "Do you pretty much…

Q: The mean number of travel days per year for salespeople employed by three hardware distributors…

A:

Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency gives data on…

A: From the given information, mean is 23 and standard deviation is 4.9.The Z score is,

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A random sample of 1026 adults in a certain large country was asked "Do you pretty much think…

A:

Q: According to the 1-2-3 rule, what percentage of area in a normal distribution is within one standard…

A: Normal distribution is symmetric distribution about mean and bell shaped. Spread of the distribution…

Q: Suppose the true proportion of voters in the county who support a new fire district is 0.53.…

A:

Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Given: Mean, μ=65 Standard deviation, σ=3.5

Q: A random sample of 1009 adults in a certain large country was asked "Do you pretty much think…

A:

Q: Explain term refers to the standard deviation of the sampling distribution?

A:

Q: High school students across the nation compete in a financial capability challenge each year by…

A: In general, z-score denotes the number of standard deviations from the mean.

Q: A real-estate appraiser wants to verify the market value for homes on the east side of the city that…

A: Data given 35.00, 38.10,37.20,29.80,30.30, 35.40

Q: Can a normal approximation be used for a sampling distribution of sample means from a population…

A: Given  n=4, σ=9, μ=47

Q: he annual salary for a certain job has a normal distribution with a mean of $54, 000 and a standa…

A: Answer 1: Sample size 30 or greater than 30   Answer 2:   As the sample size is higher than 30, it…

Q: A random sample of 1015 adults in a certain large country was asked "Do you pretty much think…

A: Hey, since there are multiple sub-parts posted, we will answer first three sub-parts. If you want…