A professor suspects that the more often students attend their online lecture the better they will do on their quiz. Which of the following would be the null hypothesis for this professor's study?
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- An exercise science student believes that during professional rugby games the average distance covered by a winger and the average distance covered by a back are different. When reviewing game statistics the student found that the average distance covered by a random sample of 17 wingers was 11.09, and the average distance covered by a random sample of 20 backs 7.21. What is the null hypothesis for this study?“One way” means that Question 8 options: there is only one correct way to calculate the test statistic. the results can be in only one direction. there is only one sample (group) in the study. there is only one IV in the study.Q2. Please answer fill-ins.
- Tanner recently moved into a new neighborhood and was surprised by the large amount of trick ortreaters he received. He asked his neighbors and found out that in previous years they averaged about40 trick ortreaters each Halloween Tanner thinks this year there were a lot more. Below is the data that each house got this year:House 1 49House 2 48House 3 35House 4 53House 5 40 What statistical test should we use to test hypothesis? (Z-Test, One-Sample T-Test, Dependent Two-Sample, or Independent Two-Sample) Why?A researcher should reject the null hypothesis if the Pearson's correlation coefficient is 0. a. true b. falseCanvas Student ..ll GuCS This is a Blood pressure before 6 Researchers have conducted a study to determine if 30 minutes of country line dancing makes a difference in blood pressure. They use eight subjects with the before and after blood pressure scores listed below. 8 5 7 4 7 10 4:57 PM 6 8 Blood pressure after 5 8 4 6 3 7 6 4 tailed test. (2) Please analyze their results and perform hypothesis testing to make a conclusion. Calculate the effect size. Use your answers to make choices for the following questions: 51% See Answer P chegg.com The problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.
- Athabasca Fishing Lodge is located on Lake Athabasca in northern Canada. In one of its recent brochures, the lodge advertises that 75% of its guests catch northern pike over 20 pounds. Suppose that last summer 65 out of a random sample of 84 guests did, in fact, catch northern pike weighing over 20 pounds. Does this indicate that the population proportion of guests who catch pike over 20 pounds is different from 75% (either higher or lower)? Use? = 0.05 . Is the sample size large enough to approximate distribution using Normal distribution? WHY?.b. What are the hypotheses?In a study, a large sample representative of the households in the US were asked about their smoking habits. The data suggested that current smokers were on average much healthier than those who recently stopped smoking. Investigators concluded that smoking does not necessarily lead to worse health outcomes. Consider the following statements. Select the ones you agree with, based on the information given. Group of answer choices A.In a randomized experiment, smoker and non-smoker groups are similar across all potential characteristics. b.The conclusions were justified by the data. c.This is an observational study. d.This study is a randomized controlled experiment. e.The results can be explained due to confounding. Current smokers are different from those who recently stopped in ways that are related to health outcomes.2. Mr. Bates wants to compare the midterm scores of his students who took the course during the fall semester versus the spring semester. Here is the data: Fall 89 86 64 91 92 94 87 83 86 90 74 59 87 97 87 Spring 76 70 82 94 76 66 72 51 75 97 74 81 85 96 74 Can he say that his fall students scored better than his spring students? (Use a = .10) Type of Test: Null Hypothesis: Alternate Hypothesis: SE: Test Statistic: P-value: Decision: Sentence:
