Pick the Test (Z-test, Single Sample T-test, Independent Sample T-test, Paired Sample Ttest, ANOVA)   13. Imagine you are a researcher interested in sex differences in student's attitudes toward homosexuals. Specifically, you want to test the idea that women are more accepting of homosexuals and thus have more positive attitudes toward homosexuals than do men. You collect data from 10 men and 10 women that are matched on items of SES, GPA, and age using a scale that measures homophobia. Test: ______________

Q: Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using…

A: Given that, The sample proportion of subjects who respond in favor is, Null and alternative…

Q: What statistical analysis correctly analyzes the independent measure ( also known as in between…

A: Here we can say that for independent measures we use t-test for one sample and t-test for two…

Q: What is the size of the sample space when two 10-sided dice are rolled?

A:

Q: When the sample size is 15 and you are doing a t test, the number of degrees of freedom is 15. True…

A: Given that  Sample size n =15 Degree of freedom =df =n-1

Q: Illustrates the effect of  significance level on the power of a two-sample t test?

A: Power of a hypothesis test: The probability of not committing a Type II error is called the power of…

Q: Imagine a researcher asks a sample of five people to drive two types of cars and rate each of them…

A:

Q: A new treatment for a certain disease is claimed to be effective in more than 80 % of cases . To…

A: In question, Given A new treatment for a certain disease is claimed to be effective in more than 80…

Q: The test statistic is wrong

A: We have given that  s12  = 1315,  n1= 15 s22  = 1523,  n1= 19

Q: Suppose Diana, an educational researcher at a local university, wants to test the impact of a new…

A: By the given conditions,we haveThis is pair t test in which1) She selects a simple random sample of…

Q: what is a composite outcome rate in statistics?

A: Solution Composite outcomes, in which multiple end points are combined, are frequently used as…

Q: what are the importance of one sample Inference (Z- test and T-test) and provide examples of how you…

A: The One Sample t Test and One Sample z test are parametric tests.    One - sample T-test :  The…

Q: which is the best sampling method for qualitative research, with a target population of 30?

A: Introduction There are 2 types of sampling method: Probability sampling method Non-probability…

Q: There are 145 people who participate in a training about compassion, and their compassion scores are…

A: In paired t test, it is needed to check the significant difference between two variables of same…

Q: level of significance and sample size

A: Level of significance: It is the probability of rejecting H0 when H0 is true. Sample size: it is…

Q: What is sample selection bias? Suppose you read a study using data on college graduates of the…

A: Sample selection bias: It occurs when the researcher fails to ensure the randomization in the…

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: Hello can you please help me with this? Can you please provide details so I can understand and if…

A: The objective of this question is to test the claim that the proportion of homes in Oregon that are…

Q: What are some examples of when to use pooled sample testing?

A: We say that samples are pooled when units that might be measured separately are processed together…

Q: The sample size is 40, why not use the " one mean z-test?

A: Sample size n=40 Sum of observations ∑x=1200 The sum of the square of observations ∑x2 85000…

Q: Explain ways in which we use the independent sample t-test vs. paired sample t-test?

A: Independent sample t-test vs. paired sample t-test

Q: Explain Misconceptions about significance testing?

A: Misconceptions about significance testing is, The probability value is defined as the probability…

Q: What is the difference between an outcome and sample space

A: An outcome refers to the result of a experiment . Here experiment tends to actions that can have…

Q: product testing organization uses a survey of readers to obtain customer satisfaction ratings for…

A: Given that  Sample size n1=280 , n2=300 Sample means x1=83 , x2=82

Q: According to the Bureau of Transportation Statistics, on-time performance by airlines is described…

A: Given information: Action % of time Observed frequency(O) On Time 71 141 National Aviation…

Q: Distinguish between a distribution of sample means and a distribution of sample proportions.

A: Distribution of sample means and sample proportions are obtained.

Q: b. Which group is more likely to have taken a vacation in the last year: college graduates or…

A: Given data:   Yes No Total College Graduate 183 67 250 Not a College Graduate 126 124 250…

Q: What is the sample space for an experiment?

A: An experiment is an activity which has observable values. The results obtained from the experiment…

Q: y, or Kruskal-Wa

A: Above all given option are non parametric test hence answer must be non parametric test  The Mann-…

Q: There were 2428 Major League Baseball (MLB) games played in 2014, and the home team won 1288 of…

A: Given ,  x = 1288 n = 2428 sample proportion , p^=xn=12882428=0.5305 α=0.01

Q: Provide a scenario for which you would use an independent sample t test. Also, explain in your own…

A: Introduction :-  Here we have to explain  Condition where independent sample t test can be applied…

Q: Explain how you will use Paired Sample t-test in any research with a suitable example.

A: Paired sample t-test The paired sample t-test, sometimes called the dependent sample t-test, maybe a…

Q: Is it 2 proportion Z -test or 2 Sample Z-tests? Two different simple random samples are drawn from…

A: The provided information is  n1=30n2=1900x1=16x2=1374α=0.01 Here there are two different simple…

Q: Show the difference between two approaches to significance testing?

A: The two approaches to significance testing are p-value approach and critical value approach.

Q: t will you use for the sample research relationship between academic stressors and learning…

A: The chi-square test of independence is known as the method that is used to define whether there is a…

Q: Women who are obese suffer social and economic consequences, a new study has shown. They are 20%…

A: We are given one scenario: Women who are obese suffer social and economic consequences, a new study…

Q: Explain the analysis plan that describes how to use sample data to accept or reject the null…

A: Step 2 Formulate an Analysis Plan: Describe the tests that will be appropriate to use to check…

Q: A marketing agency wanted to determine if a new commercial changed people's opinion about a company.…

A: Statistical hypothesis means the decision about a population parameter. Here we look at the data we…

Q: How do you calculate a sample statistic and p-value (Not sure if this helps, but we are told to use…

A: We have to write formula for sample statistics and p value for hypothesis testing.

Q: Find the 90th percentile.

A: It is very useful in statistics . It is highly used nowadays .