In which of the following situations should the chi-square Test for Homogeneity be used?   -A researcher is trying to determine if salaries for men and women in the tech industry have the same distribution. He surveys a random sample of men and women in the industry and records the distribution of salaries for each gender. He wants to determine if the distributions are the same.   -A referee wants to make sure the coin he uses for the opening coin toss is fair. He flips the coin 30 times and compares the number of heads and tails with the numbers he would expect to get if the coin were fair.   -An online survey company puts out a poll asking people two questions. First, it asks if they buy physical CDs. Second, it asks whether they own a smartphone. The company wants to determine if there is a relationship between the buying physical CDs and owning a smartphone.

Q: Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place,…

A: let we make the table for given dataDays Worked Last Year by 23 employees Department days worked…

Q: The sample data below represent the number of late and on time flights for three airlines. Flight…

A: The given sample data below represent the number of late and on time flights for three airlines:…

Q: Which of these would not make you question the results of a study? A. The source of the study…

A:

Q: Suppose a random sample of 1398 Californians who own their own homes were surveyed. The table below…

A: Step 1: Add all: Democrat, Republican and Independent/other = 601 + 419 + 378 = 1398 (total)And if…

Q: A __________ sample of a population shows motive and does not provide an accurate opinion on a…

A: Identify the type of sample of a population that shows motive and does not provide an accurate…

Q: A sociologist studying freshmen at a major university carried out a survey, asking, among other…

A: In the survey carried out by the sociologist studying freshmen at a major university, some questions…

Q: Jamu Sido Mampir Company has herbal medicine cottage branches in three locations. The company…

A: NoHerbal Hut 1Herbal Hut 2Herbal Hut…

Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: The sample size is 25; the sum of X is 1,354; and the sum of X-squared is 77,344

A: The  sample standard deviation can be calculated as:

Q: A statistics tutor wishes to study the effect that his tutoring has on his students. He randomly…

A:

Q: Both before and after a recent earthquake, surveys were conducted asking voters which of the three…

A:

Q: Office occupancy in a city is an indication of the economic health of the region in which it is…

A: Office occupancy in a city is an indication of the economic health of the region in which it is…

Q: 3. A school is sending 17 children to a camp. If 25% of the children in the school are first…

A: Given : n = 17 p = 0.25

Q: Where could you get a representative sample of infants born in the state of Texas in 2001?     The…

A: From the given information we find the correct reperestiativ

Q: A family wants to have two children. The children can either be male or female. What is the sample…

A: Let B denotes boy and G denotes girl.

Q: Which of the following could increase the risk of chance error?     Using a cross-sectional design…

A: The chance error is the difference between the actual value and the predicted value. It is the…

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: applying one way ANOVA on above data:   Mean n Std. Dev Variances budgets 257.4 5 11.7388…

Q: According to a candy​ company, packages of a certain candy contain 24​% orange candies. Suppose we…

A: The proportion of orange candies in a package is 24%.Sample size: n=350

Q: Twenty different statistics students are randomly selected. For each of them, their body temperature…

A: Given: For the 20 students who are arbitrarily selected, For them, head circumference and…

Q: Both before and after a recent earthquake, surveys were conducted asking voters which of the three…

A: Provided data is: Before and after a recent earthquake, surveys were conducted asking voters which…

Q: 31) A Texas survey wanted to see if only a minority of teenagers supported Gay Marriage.Suppose 120…

A: It is given that:

Q: A statistician wishing to test a hypothesis that students score at least 75% on the final exam in an…

A: Solution :- Option :-   b. H0:  = 75 vs. Ha:  > 75. which is Right Tailed test of…

Q: The nonprofit group Public Agenda conducted telephone interviews with three randomly selected groups…

A: 1. The hypotheses to be tested are:H0:The distribution of opinions about how high schools are doing…

Q: Which of the following are sources of sampling error and which are sources of nonsampling error?

A: Sampling errors are the errors that are arises due to fact that samples are taken to infer the…

Q: Below are the results of two polls of random samples of high school seniors and juniors, who were…

A:

Q: A random sample of 100 women is selected and their average salary is $65,123. What conclusion can…

A:

Q: The Bureau of Labor Statistics reports that the official unemployment rate for Black people was…

A: Variables are of different types. The correct classification of variables and the identification of…

Q: When two births are randomly selected, the sample space for genders is bb, bg, gb, and gg. Assume…

A: 2 births are randomly chosen, hence, the possible births are b,b, b,g, g,b, g,g. Prob. of having a…

Q: Are America's top chief executive officers (CEOS) really worth all that money? One way to answer…

A: Consider the following table-