Three randomly selected households are surveyed. The numbers of people in the households are 4​, 5​, and 9. Assume that samples of size n=2 are randomly selected with replacement from the population of 4​, 5​, and 9. Construct a probability distribution table that describes the sampling distribution of the proportion of odd numbers when samples of sizes n=2 are randomly selected. Does the mean of the sample proportions equal the proportion of odd numbers in the​ population? Do the sample proportions target the value of the population​ proportion? Does the sample proportion make a good estimator of the population​ proportion? Listed below are the nine possible samples.

Q: The average final exam score for the statistics course is 75%. A professor wants to see if the…

A: Solution: Given information: n= 12 Sample size  μ= 75  Population mean ∑x =898x = ∑x n=89812=74.8333…

Q: Find the variance of each of the nine​ samples, then summarize the sampling distribution of the…

A: Samples are given : We have to calculate variance for each sample and probability for each. Each…

Q: Suppose that the length of research papers is uniformly distributed from 9 to 22 pages. We survey a…

A: To find 75 percentile of length of individual papers,  we need to find a constant c such that…

Q: For a particular jelly bean manufacturing company it is known that 50% of all jelly beans produced…

A: We have to find out the mean of the sampling distribution of the sample proportion...

Q: Some analysts suggest that the average credit card debt for college students is $5,000, but…

A: Given that  Alternative hypothesis.  H1: µ ≠$5,000 95% confidence interval  ($4,095, $5,025)

Q: In an certain species of newt, offspring are born either green or black. Suppose that 60% of these…

A: Given Information:Sample proportion() = 60% =0.6Sample size (n) = 185

Q: The average final exam score for the statistics course is 75%. A professor wants to see if the…

A: Given: μ=75n=12α=0.01 Sr. No. Data (x) 1 87 2 51 3 68 4 49 5 75 6 52 7 58 8 79…

Q: scores for the 14 randomly selected students who were given the colored pens are shown below. Assume…

A: Solution : For the given data : Given data : sample size, n = 14 sample mean, x̄ =…

Q: The average final exam score for the statistics course is 76%. A professor wants to see if the…

A:

Q: Let say you want to test whether the population distributions of the number of goals scored (in all…

A: The solution is :The degrees of freedom are calculated by k-1 , The degrees of freedom = k - 1 So…

Q: The job type distribution for the entire state are summarized in second column of the table below.…

A: The sample size is 904.

Q: Suppose that, on average, electricians earn approximately u= $55,800 per year in the United States.…

A: Given: σ=11900n=4 The standard deviation for the sampling distribution of the sample mean is…

Q: We compute the mean age of all individuals in the population as 47 years. We draw a large number of…

A: Solution Given the researcher compute the mean age of all individuals in the population as 47 years.

Q: The data in the table represent the wealth, in billions of dollars, of six people. Use the data to…

A: The observations of wealth at the population level are: 27, 19, 23, 24, 20, 28 The sample size is 2.…

Q: Find the requested probability. 2) The test scores of 5 students are under consideration. The…

A: Total number of points, n=10 Population mean, μ=78 Since the sample mean will be within 1 point of…

Q: Are mothers having their first child at an older age? The average age of a random sample of 36…

A: The z-test Two- Sample for means tool runs a two sample z-test means with known variances to test…

Q: The average final exam score for the statistics course is 75%. A professor wants to see if the…

A: 1. For this study, we should use t-test for a population mean.

Q: Suppose we select an simple random sample of size n = 100 from a large population having proportion…

A: Here we want to find correct p which follow approximately Normal distribution.

Q: An amusement park keeps track of the percentage of individuals with season passes according to age…

A: Introduction: The claim of the amusement park authorities regarding the proportions of visitors is…

Q: Suppose 65% of all college students find watching TV a waste of time. The population proportion is…

A: Consider that p is proportion of all college students find watching TV a waste of time.

Q: The assets (in billions of dollars) of the four wealthiest people in a particular country are 45,…

A:

Q: The average final exam score for the statistics course is 78%. A professor wants to see if the…

A:

Q: Elijah and Tyler, two high school juniors, conducted a survey on 15 students at their school. They…

A: Assume, p represents the population proportion of students who responded yes. n represents the…

Q: A pharmacist finds that 55% of allcustomers prefername brand prescription drugs to generic…

A: "Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: IV. SAMPLING AND SAMPLING DISTRIBUTIONS a. Assume that the average weight of an NFL player is 245.7…

A:

Q: 1 out of every 10 fish have blue on them. If you were to take a random sample of 60 fish, what is…

A: Let X denote the number of blue fish out of n = 60 fish. Let p denote the probability of getting…

Q: 6. For each random sample below, compute the mean, median, variance, and standard deviation (rounded…

A: Given data is  a. 6 2 1 4 6 5 b. 11.2 10.0 25.4 8.4 11.0 c. 13 11…

Q: The average final exam score for the statistics course is 77%. A professor wants to see if the…

A: a. It is assumed that μ is the population mean final exam score for students who are given colored…

Q: Suppose a random sample of 1389 Californians who own their own homes were surveyed. The table below…

A:

Q: The average final exam score for the statistics course is 75%. A professor wants to see if the…

A:

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.