We predict that children exhibit more aggressive act after watching a violent television show. The scores for ten children were recorded before they watched a violent show and then after they watched a violent show. Aggression was measured in terms of number of aggressive acts (e.g. hitting, yelling, kicking etc).   Sample 1 (after TV show): 5,6,4,4,7,3,2,1,4,1 Sample 2 (before TV show): 4,6,3,2,4,1,0,0,5,2   Is this a one-tailed or two-tailed test?

1. Explain the difference between z-tests (which use categorical data), and t-tests (which use numerical data). 2. Conduct a t-test, both when given statistics, and when given data. 3. Conduct a t-test, 2-sample t-test, and paired t-test. 4. Differentiate between the five types of tests we have learned so far.

Please show all of them a,b,c,d, and e

A random sample of employees participating in a company fitness program were asked how many days they logged an exercise activity in the past month. Their responses are reported in the histogram below.Based on the histogram above, what is the class width? Clas width = ? Days What is the sample size? Sample size = ? employees

A research scientist wishes to test the claim that the mean number of children per classroom in California elementary school is less than 35. She selects a simple random sample of 42 California elementary school classrooms. Are the requirements to test the claim met? Explain in 1 - 2 complete sentences.

In Problems 9-12, conduct each test at the a= 0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, (c) the critical value, and (d) the P-value. Assume that the samples were obtained independently using simple random sampling.

Ist e commands" and inputs you used. When flipping a coin, it is equally likely to either land on "Heads" or on "Tails". A coin will be tossed multiple times and the number of times it lands on "Heads" will be recorded. Based on these multiple tosses, the sample proportion (p) of times it lands on "heads" can be calculatee

I only need answers to letter d, e, f. Please answer those 3 letters only NOT a, b, c.

In a statistics class, 10 scores were randomly selected, and the following results were obtained: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 What is the 90thpercentile? What is the first quartile (or 25thpercentile)? What is the third quartile (or 75thpercentile)?

Imagine a researcher asks a sample of five people to drive two types of cars and rate each of them on a scale of 1 to 25. The researcher wants to know: Is there is a difference in the ratings of the two types of cars. Below are the data collected: Type A: 20, 10, 11, 23, 7 Type B: 10, 11, 4, 12, 1 What type of analysis would be appropriate to address the researcher’s question and why did you make this choice?  Conduct the analysis identified in “1” above using jamovi. Use α = .05. Is the assumption(s) met?  What do you conclude? Present your answer in APA.   ** NB I asked these already    using the responses please help answer question 2 2 Based on your decision in the questions above  identify and explain the type of error you could be making