You want to see whether holy water or a wooden stake is more effective at defeating...

You want to see whether holy water or a wooden stake is more effective at defeating vampires. You gathered two groups of vampire hunters:

 13 people used holy water to vanquish vampires; they had a mean of 7 vampires defeated with a standard deviation of 2.61.
 The second group had 15 people. They used a wooden stake to vanquish vampires. They had a mean of 6 vampires defeated with a standard deviation of 1.81.
 You conducted an independent-samples t test and found t = 1.19 and df = 26.
 Using an alpha of α = .01 and a one-tailed test, the t-critical is 2.479.

13. Write up your full results in APA style. This is the full write-up, not just the statistics.

Expert Solution

orchestra answered 2 years ago

The objective of a study was to see whether a recorded phone would be more effective...

The objective of a study was to see whether a recorded phone would be more effective than a mailed flyer in getting voters to support a certain candidate. The study assumes a significance level of α = 0.05. The hypotheses are: H0: p(voted to support candidate with flyer) – p(voted to support candidate with recorded phone call) = 0, and HA: p(voted to support candidate with flyer) – p(voted to support candidate with recorded phone call) > 0. (a) Explain...

Suppose that we want to testing a new vaccine to see if it is effective. Randomly...

Suppose that we want to testing a new vaccine to see if it is effective. Randomly assigned patients are In a sample, we find the following results: Test + for disease Test - for disease Total Patient vaccinated 2 5 7 Patient not vaccinated 22 9 31 Total 24 14 38 a. Test they hypothesis that the two factors: vaccination status and test result are independent. If they are statistically dependent, we will have evidence that the vaccination is effective....

Microbiologists visiting a hospital in Greenville, NC want to see how effective hand washing with a...

Microbiologists visiting a hospital in Greenville, NC want to see how effective hand washing with a newly design antibacterial soap is at removing microbes from ER nurses hands. At the beginning of 10 different ER nurses shifts, they have their hands swabbed. Then after each patient interaction their hands are swabbed again after washing with the new soap. The microbes are grown on agar plates and counts are recorded from each individual swab. 1. What is the independent variable? _______________________________________________...

You want to discover whether university makes students more or less politically engaged. You survey 60...

You want to discover whether university makes students more or less politically engaged. You survey 60 students (32 freshmen and 28 seniors) and ask them whether or not they voted in the most recent state election. The results are shown in the table below. did not vote voted Freshmen 16 16 Seniors 4 24 Calculate the appropriate statistical test of your hypothesis, including test statistic, and degrees of freedom. State your conclusion regarding the research question.

You want to know whether left handed athletes weigh more or before. You can only find...

You want to know whether left handed athletes weigh more or before. You can only find 5 of them. You have have to assum and for this problem you will assume that they are a single random smape from a normal population. Before After 175 180 127 120 210 240 195 192 110 112 Test the claim that the weiht of the left hnaded athletes does not chnage from before to after their season. Be sure to give both hypothesis(Ha...

For each of the following, situations, indicate whether Kanban or MRP would be more effective. An...

For each of the following, situations, indicate whether Kanban or MRP would be more effective. An automobile plant producing three styles of vehicles (0.8 point) A custom job shop (0.8 point) A circuit board plant with 40,000 active part numbers (0.8 point) A circuit board with 12 active part numbers (0.8 point) A plant with one assembly line where all parts are purchased (0.8 point)

Les wants to know whether a funny ad or a serious ad is more effective at...

Les wants to know whether a funny ad or a serious ad is more effective at getting consumers to like his company, XYZ Toys. He randomly assigns 100 consumers to watch the funny ad, the serious ad, or no ad at all (IV). After they watch the ad, he asks them how much they like XYZ Toys on a scale from 1 (Dislike a great deal) to 7 (Like a great deal) (DV). What form of study design is this?...

Question