A categorical variable has three​ categories, with the frequencies of occurrence below. a. Compute the percentage of values in each category. b. What conclusions can

Q: Consider three variables X,Y and Z where X and Z are positively correlated, and Y and Z are…

A: Corr(X,Z)>0, Corr(Y,Z)>0

Q: Consider the following hypothesis test. The following results are for two independent samples taken…

A: Given that

Q: part 2 of the second question. How do i determine the quartile.

A: Data : 184, 98, 101, 126, 150, 166, 82, 136, 124, 118, 133, 83, 86, 101, 105, 97, 88, 131, 128,…

Q: Let ? and ? be two events. a) If the events ? and ? are mutually exclusive, are ? and ? always…

A: Let A and B be the two events.Given that events, A and B are mutually exclusive events.i.e.

Q: A data set has 180 values. You have already used the "2 to the k" rule to determine that a…

A: Number of classes, The minimum value in the dataset is 33,250,178.The maximum value in the dataset…

Q: Sugar content (in grams per serving) for 18 high-fiber cereals are shown below. Sugar Content 12 7…

A: Data12713150189101971014101009312

Q: Let S = $100, K = $95, o = 30%, r = 8%, T = 1, and = 0. Let u = 1.3, d = 0.8, and n = 2. Construct…

A: S = $100K = $95r = 8% =R=  0.08 + 1 = 1.08u = 1.3d = 0.8

Q: d. Suppose the standard deviation changes to 108 hours. What are your answers in (a) and (b)? The…

A: The sample size is 81, the sample mean life is 390 hours and the standard deviation is 108 hours.

Q: A study by the department of education of a certain state was trying to determine the mean SAT…

A: Sample size(n)=162Mean()=526standard deviation(s)=87degrees of freedom(df)=n-1df=162-1=161

Q: 2. If P(A) = 0.8, P(B) = 0.5, P(AUB) = 0.9, are events A and B independent events? Why or why not?…

A: P (A) = 0.8P (B) = 0.5P(A U B) = 0.9We need to find whether A and B are independent events.

Q: You are given the following data about available investments: State of economy Probability Return…

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

Q: An experiment to explore the pain threshold to electrical shocks for males and females resulted in…

A: From the given information, MalesFemalesSample Size1410Mean16.214.9variance12.726.4

Q: Here is a data set to use for the problems below: 52.7, 14.2, 47.7, 52.7, 35.2, 35.6, 33.6, 27,…

A: The data are X: 52.7, 14.2, 47.7, 52.7, 35.2, 35.6, 33.6, 27, 52.7, 24.3

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

A: Let X be the height of kindergarten children.Given that X can be described by a Normal with a mean…

Q: 1. The golf scores of two competitors, A and B, are recorded over a period of 10 days. Golfer A…

A: The question is about paired t test.Given :To find :1 ) Develop hypotheses for the test.2 ) Value of…

Q: Two players play a game with the following rules: Player 1 puts on a blindfold while player two…

A: Given that two players play a game with the following rules: Player 1 puts on a blindfold while…

Q: Suppose the events A, B, and C are mutually independent, and P(A) = 0.28, P(B) = 0.37, and P(C) =…

A: When the events A, B and C are multually independent then the probability that none of the events…

Q: A random sample of 500 items reveals that 285 of the items have the attribute of interest. a. What…

A: We have given that; a random sample of 500 items reveals that 285 of the items have the attribute of…

Q: Consider a binomial random variable with parameters n and p. We know that it has mean np and…

A: Given X has binomial distributuin Bin(n,p),then the probability mass function (pmf) of X isP(X=x) =…

Q: A political analyst believes that a senator's recent decision to support a bill resulted in a drop…

A: The given data is as follows: Approval Rating Before (Percent)Approval Rating After…

Q: The speeds (in miles per hour) of 25 sports cars are given Table 1 below Table 1 84.5 72.0 93.5…

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

Q: 3) A car rental company claims that their economy cars have an average gas mileage of 30 miles per…

A: Given that,The sample size  is 8.The data is: Car NumberGas Mileage(mpg)128231329430527632730828The…

Q: Use the data to the right to complete parts (a) through (d) below. Generation Millennials Gen X…

A: From the given information we have

Q: Use Bayes' Theorem to determine P(BID). P(BID)= (Round to two decimal places as needed.) Event C…

A: Event AEvent BTotal Event C41115Event D61420Event E12315Total 222850

Q: he owner of a small firm has just purchased a personal computer, which she expects will serve her…

A: Expected value can be described as an  anticipated value that can be put on any event or action that…

Q: Here are the data from a study in which adolescents were given counseling at the beginning of the…

A: Before TreatmentAfter…

Q: find out why they participated in school sports. Below is a table showing her results. Construct a…

A: we have a data of participated reason and their frequency  ReasonFrequencylove for the…

Q: Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made…

A: The sample size is 480 and the population proportion is 45%.

Q: A software company is interested in improving customer satisfaction rate from the 70% currently…

A: The question is about hypothesis testing.Given :Population proportion of currently claimed customer…

Q: Consider the three stocks in the following table. Pe represents price at time t, and 0 represents…

A:

Q: The data below shows electricity costs in cents per KWH for a sample of 14 utility companies. The…

A: The given data is as follows:12.4, 12.8, 13.1, 13.6, 13.8, 13.9, 14.0, 14.2, 14.2, 14.4, 14.6, 14.8,…

Q: 1 NAASSTOOCHES 2 3 4 9 5 6 df 7 8 9 10 15 50 0.90 0.02 0.21 0.58 1.06 25 16.47 37.69 1.61 2.20 2.83…

A: Null hypothesis should be rejected for 3:1

Q: 1. A class of undergraduate mechanical engineering students was surveyed. Respondents were asked…

A: Given the result of a survey about political alignment: of the 340 students who answered that…

Q: Find the standard deviation of the following values: 2.58x10-5, 2.33x10-5, 3.28x10-5, 3.57x10-5

A:

Q: Task one: A game Create a random chance one-player game with prizes that is fun to play. The game…

A: The expected value for the player must be 0. This value can be adjusted by adjusting the prize or…

Q: of the total customers who shop at Wilcon Builders Supply along Quezon Avenue, Quezon City, 30% are…

A: Given that

Q: 9) A bakery claims that the average weight of its cupcakes is 100 grams. You sample 30 cupcakes and…

A: From the provided information,Sample size (n) = 30Level of significance

Q: 3. The number X of telephone calls received each minute at a certain switchboard in the middle of a…

A: The observed frequency distribution of the number of telephone calls is given as…

Q: At one college, GPA's are normally distributed with a mean of 2.6 and a standard deviation of 0,4.…

A: At one college, GPA's are normally distributed with a mean of 2.6 and a standard deviation of 0.4

Q: You are given that at least one of the events Ar, 1 ≤r≤n, is certain to occur, but certainly no more…

A: Given,at least one of the events , , is certain to occur but certainly no ............(#)more than…

Q: /Target walmart Nans Macy's total Customers. Frequency 3 10 • Satifaction in stures.

A: Here, we have to data for the dv( dependent variable) in an spss dataset.Here, we have to response…

Q: Let C and D be independent events, with P(C) = 2/3 and P(D) = 1/4. Read statements (a) through (d).…

A: The events C and D are independent.The probabilities are as follows:

Q: mylearning.suny.edu/d21/le/content/920969/viewContent/2 Calculate the sample standard deviation and…

A: Given sample data is,X14.529.81.527.723.1Using formulas,

Q: The following table contains data on the joint distribution of age (Age) and average hourly earnings…

A: The joint distribution of age and average hourly earnings of age group 25-34 are as…

Q: Number of credit hours Is this discrete or continuous?

A: Solution-:We want to find the number of credit hours is this discrete or continuous?

Q: 1.3-6. A researcher finds that, of 982 men who died in 2002, 221 died from some heart disease. Also,…

A: Given that,The researcher knows that, of 982 men who died in 2002, 221 died from some heart…

Q: 4. Harry’s score was 66 on an exam that had a mean of 57 and a standard deviation of 6. Find and…

A: Let  denote the Harry’s score in the exam.Given that,,, and

Q: An insurance company is thinking about offering discounts on its life insurance policies to…

A: For smokers,Number of smokers suffer from heart disease, Sample size, For non-smokers, Number of…

Q: The probability distribution of number of televisions per household in a small town A 12 3 015 026…

A: Probability mass function of X is x0123P(X=x)0.020.150.280.55Note: According to bartelby question…

Q: 2.2.2 A Starburst candy package contains 12 individual candy pieces. Each piece is equally likely to…

A: n = 12 There are four flovours berry,  orange,  lemon and cherry..All is equally likely.so the…