Question: A barangay captain claims that at least 85% of the residents of the barangay have household pets. To test this claim, a researcher randomly selected a sample of 550 residents and find that 440 of them do have household pets. At .05 level of signficance, what can the researcher conclude?

Q: Random samples of 50 women and 50 men are taken at Norwich University. They are asked their reaction…

A: Sample sizes n1=50 ,n2=50Favorable cases x1=23 ,n2=19

Q: Discussion Question: Provide an example of a within-subjects research study on which you could use a…

A: From the given information, Within-subject research- It is that sort of investigation design in…

Q: Chi Square Project The use of cell phones in automobiles has increased dramatically in the last…

A: Given  Level of significance ɑ=0.05    Had accident not accident Use cell phone 25 300 Not…

Q: A learn-to-type software program claims that it can improve your typing skills. To test the claim…

A: We make the following table for the difference from the given information  Typing Speeds (in Words…

Q: Which analysis would be appropriate when comparing subjects’ scores on a pretest and a post test?…

A: It is needed to find the proper statistical test.

Q: Tennis Instant Replay The Hawk-Eye electronic system is used in tennis for displaying an instant…

A: From the given information, the claim of the problem is “fewer than 1/3 of the challenges are…

Q: With the availability of online gaming and the social relationships that can thereby develop,…

A: Online gaming and social relationships' availability can develop LGBT players using gameplay to…

Q: wild bears were​ anesthetized, and then their weights and chest sizes were measured and listed in a…

A: Given data  P value=0.000, level of significance=ɑ=0.05, r=0.978552

Q: A poll was conducted to investigate opinions about global warming. The respondents who answered yes…

A:

Q: A local judge has been allowing some individuals convicted of “driving under the influence” to work…

A:

Q: . Does this score differ from the perceptions of those couples in this sample of data

A: Given that  Everyone who participated in the seminar was asked to report on their perception of…

Q: Question 3  This is a multiple choice question, which one is correct?

A: In general, we reject the null hypothesis if test statistic is greater than the critical value.

Q: If you have a study design that requires a single sample exposed to different levels of the…

A: Independent samples are taken from two different populations.

Q: Hypothesis Testing 11.) A claimed trend of thinner pageant winners has generated charges that the…

A: Given: A data on body mass indexes(BMI) for recent Miss America winners.…

Q: Question When conducting a post hoc analysis following an ANOVA, which test is commonly used to…

A: The question is about ANOVA.ANOVA :1 ) ANOVA is used to test the mean of more than 2 groups are…

Q: Which type of study uses randomized sample but not treatment? Experiments Surveys Observational…

A: From the given information, the appropriate answer is to be concluded based on the nature of the…

Q: Identify the statistical test that should be used to analyze the data for the following study: Does…

A: From the given information GRE practice test scores were compared before and after 40 students had…

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

A: From given data we have : Observed Frequencies   Guilty plea B1 Not Guilty plea B2 Sent to…

Q: You think that there might be a relationship between stress for Middle Schoolers and the number of…

A:

Q: direct mailing company sells computers and computer parts by mail. The company claims at least 90%…

A: Let p be the population proportion of orders mailed within 72 hours after they received. The claim…

Q: At BYU-Idaho there has been a lot of interest in the performance of students in online classes.…

A: Given The data is as follows: Grade Traditional Online  A 26 14 B 31 26 C 40 23 D 21 11…

Q: Report an appropriate hypothesis test for a positive linear relationship and use a 5% significance…

A: The p-value from the ANOVA table is very low and the decision rule states that reject the null…

Q: A poll was conducted to investigate opinions about global warming. The respondents who answered yes…

A: df = (no. of row-1)(no. of column -1) = (2-1)(3-1) = 2 alpha = 0.01

Q: you can reject H0 at the 1% level of significance, can you always reject H0 for a two-tailed test at…

A: We have given that the decision for one-tailed test.

Q: Anterior cruciate ligament (ACL) injuries occur most frequently in planting and cutting sports such…

A: Independent sample t- test: Independent sample t test is used to compare the difference between…

Q: If a teacher wants to assess whether positive feedback impacts test performance and she assesses…

A: The choice of correct inferential test is critical to hypothesis testing.

Q: After students were not doing so well in her history class, Mrs. Williams decided to try a different…

A: The given data is              Students' Test Scores Student Without Reinforcement With…

Q: What is the power of a study using a correlation, with a one-tailed test at the .05 significance…

A: Here's the explanation is as follows; Power analysis is an important aspect because It allows us to…