The distribution of the home prices in a certain city is strongly skewed right with a mean of 420 thousand dollars and a standard deviation of 180 thousand dollars . A real estate agent selects a random sample of 60 homes for sale . overline x; n = 60 a . What is the shape of the sampling distribution of sample mean price of homes for samples of size b . What is the approximate probability that the mean price of homes for a sample of size is more than 450 thousand dollars ? c . Based on your answer to the part ( b ) , would you be surprised if the real estate agent selected a sample and the sample mean was more than 450 thousand dollars ? Explain . n = 60

Q: uppose the true proportion of voters in the county who support a new fire district is 0.36. Consider…

A: Given that, p = 0.36 1 - p = 1 -0.36 =0.64 n = 93

Q: Which of the following describes the sampling distribution of the sample mean?

A: Let , X→N(μ=1950 , σ=500) , n=100 By using central limit theorem , The sampling distribution of the…

Q: The 2010 census found that 13.9% of adults in the United States identifi ed themse Hispanic origin.…

A: Given data, n=1500 p=13.9%=0.139 Find mean and sd?

Q: CNNBC recently reported that the mean annual cost of auto insurance is 951 dollars. Assume the…

A: Let X be the cost of auto insurance.Given,

Q: Suppose that the efficacy of a certain drug is 0.56. Consider the sampling distribution (sample size…

A: The objective of this question is to find the mean and standard error of the sampling distribution…

Q: The “best estimate” of the mean of a parent distribution, using a data set consisting of N samples,…

A: The given statement is,  The “best estimate” of the mean of a parent distribution, using a data set…

Q: In an automobile repair and service industry, the average number of defective items in all the lots…

A:

Q: Suppose the true proportion of voters in the county who support a new fire district is 0.36.…

A:

Q: CNNBC recently reported that the mean annual cost of auto insurance is 968 dollars. Assume the…

A: GivenMean(μ)=968standard deviation(σ)=259sample size(n)=36

Q: Assume that the time spent by students in extra curricular activities per week is normally…

A:

Q: CNNBC recently reported that the mean annual cost of auto insurance is 968 dollars. Assume the…

A: GivenMean(μ)=968standard deviation(σ)=259sample size(n)=36

Q: Assume thAt scores on a standardized test are known to follow a bell shaped distribution with a mean…

A: L

Q: Joan’s finishing time for the Bolder Boulder 10K race was 1.81 standard deviations faster than the…

A: Solution: Let X be the  women  finishing time for the Bolder Boulder 10K race has normal…

Q: Sally spent a lot of time during COVID-19 recording the age of every professional wrestler. The data…

A: We have to identify sampling distribution.

Q: Suppose that a study of elementary school students reports that the mean age at which children begin…

A: The provided information are: Population mean (µ) = 5.7 Population standard deviation (σ) = 1.2…

Q: The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million…

A: We have given that  Sample sizes n1= 40 , n2= 35  Sample means xbar1= 3.2 , xbar2=1.9  Standard…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 956 dollars. Assume the…

A:

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1015 dollars. Assume the…

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

Q: A parenting magazine reports that the average amount of wireless data used by teenagers each month…

A: State the null and alternative hypotheses for the test. Fill in the blank below. H0: μ=6:…

Q: Expected value  b Variance c Standard Deviation

A: Here prepare probability table with required column

Q: CNNBC recently reported that the mean annual cost of auto insurance is 984 dollars. Assume the…

A: As per guideline expert have to answer first question only dear student please upload other parts…

Q: Suppose a professor uses a normal distribution to assign grades in her math class. • She assigns an…

A:

Q: Suppose that the efficacy of a certain drug is 0.38. Consider the sampling distribution (sample size…

A: The objective of this question is to find the mean and standard error of the sampling distribution…

Q: The prices of pants at a large clothing store chain are skewed left with a mean of $32 and a…

A: Given information: The prices of pants at large clothing store chain are skewed left with mean of…

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: uppose the true proportion of voters in the county who support a restaurant tax is 0.65. Consider…

A: Solution: Given information: n= 196 Sample size  p= 0.65 Population proportion.

Q: The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million…

A: The sample standard deviations are s1=2 and s2=1.5.

Q: For any distribution, what is the z-score corresponding to the mean?​

A: The z-score of a random variable x is defined as follows: z = (x – µ)/σ. Here, µ and σ are the mean…

Q: Suppose that among the population of smartphone owners with 16GB of storage, the mean amount of…

A: From the provided information, Mean (µ) = 13 GB Standard deviation (σ) = 3 GB

Q: A recent study of cardiovascular risk factors reports that 30% of adults meet the criteria for…

A:

Q: Assume the credit card balances of younger college educated employed persons are normally…

A:

Q: Average salaries for full-time associate professors in United States doctoral departments of…

A: Mean=71955, standard deviations=13513, n=200

Q: In a large community, 44% of the people have blood type O. Let p be the proportion of people who…

A:

Q: CNNBC recently reported that the mean annual cost of auto insurance is deviation is 219 dollars, and…

A: As per our guidelines we are suppose to answer only three sub parts.Sample of…

Q: It is generally believed that 49 percent of all college students complete their college careers.…

A:

Q: The scores of individual student on the American College Testing (ACT) Program Compsite College…

A: Given that - The scores of individual student on the American College Testing (ACT) Program Compsite…

Q: CNNBC recently reported that the mean annual cost of auto insurance is 1050 dollars. Assume the…

A: As per our guidelines we are suppose to answer only three sub parts.Sample of…

Q: According to the National Association of Colleges and Employers Spring 2019 Salary Survey, the…

A: The provided information is as follows:The average starting salary for 2018 college graduates was…

Q: A waitress keeps track of the tips she earns and knows that her mean tip is 15% with a standard…

A: We have been given that a waitress keeps a track of the tips that she earns and knows that her mean…

Q: Probability Scores 0.5 1 0.05 3 0.3 8 0.1 9. 0.05 12 Find the variance of the above random variable…

A: We have given that the random variable X that is Scores and their probability in tabulated form.

Q: Suppose the average amount of money that people spend on their pets per month is 47 dollars, with a…

A: From the Standard Normal table, the bottom of 30% is -0.5244. The average amount of money spent on…

Q: The mean weekly earnings of all female workers in a state is $710 and the mean weekly earnings of…

A: Given The mean weekly earnings of all female workers in a state is $710 and the mean weekly earnings…

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.