Conduct the hypothesis test and provide the test statistic and the critical​ value, and state the conclusion.   A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.025 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first​ category, but do the results support that​ expectation?

Q: Find the critical value zc necessary to form a confidence interval at the level of confidence shown…

A: Givenc=0.91

Q: Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA test?…

A: Which of the following situations is appropriate for a two-factor (also called two-way) ANOVA…

Q: Researchers wanted to know if therapy could help smokers quit smoking. Of the 71 smokers they…

A: Given, The sample proportion is,

Q: What is the alternative hypothesis in the problem? The average family family size in the Philippines…

A: Given The average family size in the philippines was reported as 4.30 Mean=μ=4.30 l.o.s.=α=0.10

Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

A:

Q: Use the sign test to test the indicated claim. A researcher wishes to test whether a particular diet…

A: Given Information: Sample size (n) = 24 After one month on diet, for 18 people the second blood…

Q: You work for a marketing firm that has a large client in the automobile industry. You have been…

A: (a) Critical value: Using the z-table, the critical value at 98% confidence level is  z0.022=2.326…

Q: For a repeated measures study, if the null hypothesis is true, then what value should be obtained…

A: According to the provided information, the null hypothesis is true

Q: What kind of test should be used? A. One-Tailed B. Two-Tailed C. It does not matter. (b) The test…

A: Given that Sample size n = 10 Population SD = 10.9 Level of significance = 0.01 Note : According to…

Q: Construct a 95% confidence interval for p1 - p2. The sample statistics listed below are from…

A: Given data, n1=50x1=35p1=x1n1 =3550=0.7x2=40n2=60p2=40 60=0.67z-value at 95% confidence is Zc=1.96

Q: at a college, 350 students are randomly selected and asked distance of their commute to campus .…

A: At a college, 350 students are randomly selected and asked distance of their commute to campus, from…

Q: A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were…

A: Hypothesis Testing

Q: student decides to spin a dime and determine the proportion of times it lands on heads. The student…

A: We have given that  Sample size n = 25 Favorable cases x =17 Population proportion p =0.5

Q: The following are the average lengths of today’s top 10 Global Spotify hits, in minutes. 3.02, 2.85,…

A: Given: X~N(μ,σ) n=10

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: 7 etermine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Gender and…

A:

Q: A survey was conducted that asked 984 people how many books they had read in the past year. Results…

A: Sample size is, Sample mean is, Sample standard deviation is, Confidence level is The objective is…

Q: If the computed p-value is 0.0001 and the level of significance is 0.01, what do you think will be…

A: GIVEN DATA  p value = 0.0001 significance level (α) = 0.01 decision = ?

Q: What test should be used in the following study? (options are uploaded in images). Levels of…

A: Given information: The investigator is specially interested to test whether there is any difference…

Q: Rating of Male by Female 40 35 49 37 39 Rating of Female by Male 50 35 39 M档位西游BB站两筛設路轩科轫契燜刀…

A:

Q: E Click on the icon to view the table of arrival delay times. What are the null and alternative…

A: Here the data is not given so not possible to find test statistics from given data only first…

Q: fany people believe that criminals who plead guilty tend to get lighter sentences than those who are…

A:

Q: The average salary for American college graduates is 540,300. You suspect that the average is…

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

Q: Mr. Price calculates a 95% confidence interval for the difference between the proportion of Aaron…

A: The 95% confidence interval for P Rodgers - P Mahomes is given as (-0.05, 0.15). When the repeated…

Q: A survey was conducted that asked 1005 people how many books they had read in the past year. Results…

A: Given,sample meaan(x¯)=14.3sample standard deviation(s)=16.6sample size(n)=1005degrees of…

Q: A professor wants to know which type of instructional mode students had more satisfaction.  The…

A: Given : Online(1) Hybrid(2) Face to Face(3) 3 1 2 3 3 2 4 1 2 3 3 1 3 2 3

Q: less concerned about their health and safety and are therefore less inclined to wear seat belts. Is…

A: Solution: The observed count or frequency table is    Number of Cigarettes Smoked per day  0…

Q: ed on records in the past 5 academic years, the sophomore biology class has a mean score of 75. The…

A: In hypothesis testing, two hypotheses are formed, namely null and alternate hypotheses. The…

Q: Determine the sample​ proportion, p, of households that own a Company A product. b. If the…

A: Let , n=total number of households=56 Let , X= be the number of respondents said yes.=14 The…

Q: Are job applicants with easy to pronounce last names just as likely to get called for an interview…

A: Given Information: Easy to pronounce last names: Sample size n1=530 Number of successes x1=413…

Q: A community is considering raising funds to pay for improvements to the community swimming pool. To…

A: Here given community leader survey patrons of community pool on Saturday afternoon

Q: Motor Vehicle Fatalities The table below lists motor vehicle fatalities by day of the week for a…

A:

Q: Four scenarios of statistical studies are given below. Decide which study uses a population…

A:

Q: One survey showed that among 766   randomly selected subjects who completed four years of​ college,…

A: Denote p as the true population proportion of smokers in the college.

Q: A national study report indicated that 20.5% of Americans were identified as having medical bill…

A: Given: n= 400 ,x= 95.0 p= 0.205 p̂= 95 / 400

Q: The number of hours of computer usage in a day of a random sample of 12 students was recorded as…

A:

Q: Twenty-eight college faculty at Acme Looniversity who volunteered for a fitness program were divided…

A: Given : For group 1 Sample size : n1=14 Sample mean : x¯1=4.6 Sample standard deviation : s1=0.69…

Q: Consider the sample consisting of the following nine results : 2.3, 7.2, 3.7, 4.6, 5.0, 7.0, 3.7,…

A: Compute the upper quartile, the data needs to be put into ascending order, as shown in the table…

Q: In studying the responses to questions on a multiple-choice test, the following sample data are…

A: Given ,The responses to the questions occur with the              same frequency . The responses to…

Q: A food service director for a national corporation suspects that people are more likely to order…

A: Null Hypothesis: H0: The salad sales are not uniformly distributed across the days of the week.…

Q: Perform the hypothesis test that there is a relationship between gender and major 4) at 5% level of…

A: Solution. To test the hypothesis we will use chi square test for independence.

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: What is the Mean of the Millennial Group? how about the Gen Z group?

A: 1) The mean of the Millennials group = 10.2 2) The mean of the Gen Z group = 13.9

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.