In the United States, 42% of adults have college degrees. Here, assume that you are collecting a survey of 10 US adults and each adult is asked if they have a college degree. Using this prompt, answer the following questions. Q1 Q2 Q3 Q4 Q5 Q6 Q6 Question Is the selection of the 10 adults a binomial experiment? Why? What is the mean of this binomial distribution? What is the variance of this binomial distribution? Create a probability distribution graph. What is the probability that all 10 have a degree? What is the probability that exactly 4 have a degree? What is the probability that at least two have a degree? Answer

Q: Describe the procedures for obtaining a random sample. step by step

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Q: 3. Customers at a gas station pay with a credit card (A), a debit card (B), or cash (C). Assume that…

A: Answer is given using formula of expectation and variance.

Q: The U.S. Census Bureau computed the proportion of U.S. residents who lived in each of the four…

A: Solution: Given information: k= 4  Categories  n= 80+129+209+118 = 536  total observation   α=0.05…

Q: Professor Fair believes that extra time does not improve grades on exams. He randomly divided a…

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Q: Sixty-three percent of adults in a certain country believe that life on other planets is plausible.…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: Finding the Mean, Variance, and Standard Deviation of a Binomial Distribution 13% of students at a…

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Q: f. The p-value for this sample= (Please show your answer to four decimal places.)

A: Number of outcome n=4

Q: Assume them to be a random sample from a normal population. Perform a hypothesis test at alpha =…

A: Given:  n = 10 variance, σ2 = 0.02 α = 0.05

Q: Twenty-three percent of U.S. employees who are late for work blame oversleeping. You randomly select…

A: According to the given information in this questionWe need to find the meanOf the binomial…

Q: find the mean, variance, and standard deviation   Twenty-one percent of U.S. employees who are late…

A: The value of mean is 0.84, which is obtained as follows:

Q: Good credit: The Fair Isaac Corporation (FICO) credit score is used by banks and other lenders to…

A: Solution

Q: 80% of people who purchase SUV sports model vehicles are men. What is the variance of women who…

A: Given: n=15 Here women purchasing SUV sports model vehicle is success. Probability of men purchasing…

Q: A recent national report states the marital status distribution of the male population age 18 or…

A: Answer Given The total sample size [n] = 1872p1 = 31.7% = 0.317p2 = 54.6% =0.546p3 = 2.4% = 0.024p4…

Q: 76% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Solution: Let X be the random variable that the number of U.S adults who think that political…

Q: Which of the sections had the most variance in the scores?

A: Given: Section Mean Standard deviation English 20.3 6.8 Math 20.7 5.4 Reading 21.4 6.5…

Q: 2. The continuous random variables X and Y have known joint probability density function f(x,y)…

A: Let X and Y are the continuous random variables with the joint probability density function given…

Q: 65% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Given that  Success of probability p =0.65 Number of trials n=6 X~binomial ( n , p) NOTE:- According…

Q: The high temperature, in ∘C, on the first day of winter was recorded in a certain city every year…

A: Given data is,4,12,6,9,6,11sample size(n)=6

Q: %78 of U.S. adults think that political correctness is a problem in America today. You randomly…

A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: The college placement office is developing a model to relate grade point average (GPA) to starting…

A: The question is about correlation.Given :To find :Test whether there a linear relationship between…

Q: (9) There are 300 questions on a multiple choice exam. For each question there are 5 choices to…

A: Given sample size(n)=300Each question has 5 choices and there is only one correct…

Q: Find the sample variance Given sample 20,13,4,8,10

A: The given sample is 20,13,4,8,10

Q: A 10 question survey was taken with only yes or no as possible answers. Each questions answers had…

A: Given: Number of questions = 10 Number of trials = 2 (Yes and No) Each questions answers are…

Q: In an analysis of variance, which value is determined by the size of the sample variances? a.…

A: We have given that the statement about to the ANOVA.

Q: The ages (in years) of a random sample of shoppers at a gaming store are given below: 12 21 23 15 20…

A: Observation: XX X^2X2 1 12 144 2 21 441 3 23 529 4 15 225 5 20 400 6 16 256 7 19 361…

Q: 32% of likely U.S. voters think that the federal government should get more involved in fighting…

A: It is given that n = 6 and p =0.32.

Q: An organizational psychologists measures levels of job satisfaction in a sample of 30 partcipants.…

A: Given information Sample size(n) = 30 SS = 120 a) Degrees of freedom for the variance = n – 1 = 30 –…

Q: The variance of the difference between two independent random variables is the difference in the…

A: Given the statement " The variance of the difference between two independent random variables is the…

Q: Emphysema. The respiratory disease emphysema, which is most commonly caused by smoking, causes…

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Q: A group of friends is looking to buy a new board game. They've narrowed the choices down to three.…

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Q: a Pew research center survey ask adults in the United States which technology would be very hard to…

A: It has been given that 2000 users have been emailed or surveyed. Thus, we have, n = sample size =…

Q: Analysis of variance is used to test ___________. Select one: a. None of the choices b. Difference…

A: There are different hypothesis for testing difference between two means, two variances, three or…

Q: 3 4 2 5 4 5 5 7 7 8 5 6 8 6. 7 2 2 5 8 0 6 7 8

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Q: A coach uses a new technique to train gymnasts. Seven gymnasts were randomly selected, and the…

A: 2 population is given

Q: Sixty-four percent of adults in a certain country believe that life on other planets is plausible.…

A: To find the mean, variance, and standard deviation of a binomial distribution, we use the…

Q: Using the same set of scores (10, 15, 12, 18, 19, 16, and 12), the variance is

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Q: A survey on customer satisfaction at a bank is carried out by asking everyone who visits the bank on…

A: Sampling methods: In simple random sampling, all the units in the population have equal chance of…

Q: 300 books were selected at random from a library. If the mean length of books in this sample was 150…

A: Given that total books, n= 300 Mean, X bar= 150 and  Variance, sigma= √100 = 10 We know that z…

Q: A senior accounting major has job offers from four CGA (certified general accountant) firms. To…

A: ANOVA is a hypothesis testing method used to check for the means of the factors are all equal.

Q: Consider an experiment with four groups, with five values in each. For the ANOVA summary table shown…

A: The experiment is consisting of 4 groups with five values in each group.

Q: Jimmy has an unfair coin that he flips and it lands on heads 75% of the time. If he flips this coin…

A: Jimmy's unfair coin lands on head 75% of the time. Hence probability that, the coin will lands on…

Q: An educational psychologist studies the effect of frequent testing on retention of class material.…

A: State the hypotheses. That is, there is no evidence to conclude that testing frequency has a…

Q: 77​% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: The value of mean is 4.62, which is obtained as follows:

Q: 76% of U.S. adults think that political correctness is a problem in America today. You randomly…

A: It is given that 76% of U.S adults think that political correctness is a problem in America.…