QUESTION 1 Which of the following is an example of a discrete random variable? The number of courses registered by a randomly selected ZU student. The mobile number of a randomly selected ZU student. O The distance a car travels before stopping. The weight of a randomly selected ZU student.

Q: Data were collected on annual personal time (in hours) taken by a random sample of 16 women and…

A: n1=16,n2=7,X1¯=24.75,X2¯=21.89,s1=2.84,s2=3.29

Q: In a large population, 59% of the people have been vaccinated. If 3 people are randomly selected,…

A: n=3,p=59%=0.59X~Binomial(n=3,p=0.59)Let X be the number of person have been vaccinated.p be the…

Q: 2. A retail giant, Mississippi, sells books on its website. The book Lisa Panner and the…

A: From the above given data the following solution is provided below:

Q: 40 51 43 1. 44 43 41 41 42 42 42 42 41 Frequency 45 44 41 46 43 46 41 45 43 40 41 42 43 41 44 44 45…

A: Given the number of pepperoni samples on pizza.Want to calculate mean and standard deviation.

Q: Suppose that a certain college class contains 41 students. Of these, 25 are juniors, 27 are history…

A: Write down the given information : Total  = 41 Junior(A) = 25 History majors(B) = 27  7 neither…

Q: Would you expect the correlation between High School GPA and College GPA to be higher when taken…

A: The correlation shows the relationship between 2 variables.

Q: Two dice are rolled. What is the probability that the sum is 12? OOC 1 36 TIL FES 3 11 36 17 . 36…

A: Two dice are rolled.S={ (1,1) (1,2) (1,3) (1,4) (1,5) (1,6) (2,1) (2,2) (2,3) (2,4) (2,5) (2,6)…

Q: Suppose that X has a Weibull distribution with = 0.23 and 8 = 100 hours. Determine the following.…

A: =0.23=100

Q: Education Level Not H.S. Graduate H.S. Graduate Some College Bachelor's Degree Beyond Bach. Degree…

A: The data table shows the household income and education level.

Q: In a county, men constitute 60% of the labor force. The rates of unemployment are 5.1% and 4.3%…

A: According to the given information,Probability of worker is men, P(men) = 60% = 0.60So, probability…

Q: Can you make your answer more clearer

A: The answer given by the expert is very clear.If there is any specific query/confusion,that may be…

Q: In the past decades, The UAE has focused on the education sector. As a result, 83.5% of female…

A: Probability of female high-school graduates pursue further education at tertiary-level…

Q: 39) For a single restriction (q= 1), the F-statistic: A) is the square root of the /-statistic. B)…

A: For a single restriction (q= 1), the F-statistic:

Q: t says select ONE. There's only one correct answer.

A: X has normal distribution with mean =120 and standard deviation =15.That is X has N() distribution…

Q: A group of people were asked what instrument they play.  They were divided up into youths and adults…

A: From the provided information,PianoViolinGuitarTotalYouth273567129Adult4469100213Total71104167342

Q: Select the correct answers. More than one answer may be correct. Group of answer choices Test…

A:

Q: A 1 2 Education Level 3 Not H.S. Graduate 4 H.S. Graduate 5 Some College 6 Bachelor's Degree 7 8 9…

A: Given the Excel table and want to find probabilities.

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A: Let denote the adults have IQ scores that are normally distributed.Given that,The mean:…

Q: 73% of owned dogs in the United States are spayed or neutered. Round your answers to four decimal…

A: P=73%=0.73n=32

Q: If the number of mortgage applications declined by 9% to 1,625,385. What had been the previous…

A: The given data is as follows: to 1,625,385 number of mortgage applications.

Q: QUESTION 9 The police records of a metropolitan area kept over the past 300 days show the following…

A: Note:- "Since you have posted multiple questions we will provide solutions only to the first…

Q: 1. (Continued from HW2 problem 1) Suppose X₁ ~ N(0, ai0) independently for i=1,2,..., n with a > 0…

A: a) The likelihood function for a single Xi​ is:The joint likelihood function for the data is:Taking…

Q: 18. A sample of scores has a mean of M = 6. Calculate the mean for each of the following a. A…

A:

Q: 4. A random variable X has the following probability mass function (pmf): X takes values in…

A: Probability mass function :  ; { n = 1,2,3,....10 } We have to calculate value of A . Concept : (…

Q: True or false    1) Chi-square test statistic is always positive.   2) When doing linear…

A: Let us discuss every statement and state whether the statement is true or false.

Q: A major application of analytics in marketing is determining customer retention. Suppose that the…

A: Given, The customer leaving for another carrier from one month to the next is 0.07We have to find…

Q: Answer B

A: Test statistic tstats=−1.7106H0:μ≥8.89 Vs H1:μ<8.89

Q: customers who tried only one each of the recipes. For Recipe 1, the average rating on a scale of 1…

A:

Q: Test the claim at the 0.05 level of significance. Let recent graduates with a master's degree be…

A:

Q: The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of…

A: From the provided information,

Q: your pizza in 33 minutes from when the order is placed. Being a skeptic, you decide to test and se…

A: According to the given information in this questionWe are going to find the conclusion by finding…

Q: the following procedure. Draw a card from a standard deck of pla 11. If the card is an ace, then X =…

A:

Q: A sample of 20 people is selected randomly without replacement from a population of 78 sufferers of…

A: N=78, n=20, M=8Randomly selected without replacement

Q: Betsy Pitzer makes decisions according to Bayes' decision rule. For her current problem, Betsy has…

A:

Q: For each of the following functions, (i) find the constant c so that f(x) is a pdf of a random…

A:

Q: Suppose you are interested in explaining maximum July temperatures in degrees Fahrenheit and…

A: cityxyEdmonton5189Calgary5391Denver3990El paso31109There are four cities and we have data for their…

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: Contingency table Agreed = ARefused = BTotal18-21 age = C861510122-29 age = D20934243Total29549344

Q: 6. The prosecutor's fallacy. Let G be the event that some accused person is guilty, and 7 the event…

A: We have to show that the P(G|T)=P(T|G) iff P(G)=P(T)

Q: 3. Airbnb hosts wish to learn the average length of stay of all visitors that are under the age of…

A: It is given data is as follows:Sample size,  Confidence level,

Q: A trucking company would like to compare two different routes for efficiency. Truckers are randomly…

A: For Route A:The sample size, i.e., the sampled number of truckers, n1=20.The sample average time (in…

Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…

A: Sample size=n=24Sample mean==83.4Standard deviation=s=24.4=0.10

Q: In a recent survey, ice cream truck drivers in Cincinnati, Ohio, reported they make about $280 in…

A: It is required to predict the income of a driver who was working 8 hours on a hot holiday, and that…

Q: Which of the following statements about simple linear regression is TRUE? If the scatterplot showing…

A: We have to identify which of the following statement is True for linear regression equation

Q: Assume that an r of .80 describes the relationship between daily food intake, mea-sured in ounces,…

A: The question is about correlation.Introduction :Correlation :1 ) It measures the strength of linear…

Q: 2. City officials are interested in identifying the most dangerous intersections in State College.…

A: According to guidlines we are supposed to solve the 1st 3 part only the rest can be resubmitted

Q: A political campaign is interested in whether city 1 has less support for raising the minimum wage…

A: n1=800   , x1=504n2=1000   , x2=625

Q: The MPG (miles per gallon) for a certain compact car is normally distributed with a mean of 30 and a…

A: mean=30, standard deviations=1 Let X be the MPG Given X~N(mean=30, standard deviations=1)

Q: A professor believes that, for the introductory art history classes at his university, the mean test…

A: The question is about hypothesis testing.Given :Randomly selected no. of students in the evening…

Q: Research Question: Is there a relationship between college graduation and parental education?…

A: Hypothesis is an assumption that is being tested.

Q: A student is working on a homework assignment with 5 questions. Each question on the assignment has…

A: Given,Total number of questions, n = 5Each question on the assignment has 3 possible choices. So…