Which of the following is the best null hypothesis for the research question: Does playing music...
Which of the following is the best null hypothesis for the research question: Does playing music for a dog during a storm decrease its stress response?
| a) music affects dog stress during storms by blocking out stressful stimuli |
| b) music increases dog stress during a storm by magnifying stressful stimuli |
|
c) dogs that listen to music during storms will have the same stress level before and after the storm |
|
d) dogs that listen to music during a storm will have the same stress level as those who don't |
Homework Answers
the best null hypothesis for this observation is
c) dogs that listen to music during storms will have the same stress level before and after the storm
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Which of the following is the best null hypothesis for the
research question: Does playing music...
1a.) Do employees perform better at work with music playing? The music was turned on during...
1a.) Do employees perform better at work with music playing? The music was turned on during the working hours of a business with 45 employees. Their productivity level averaged 5.2. On a different day the music was turned off and there were 40 workers. The workers' productivity level averaged 4.8. What can we conclude at the .01 level, if computed p-value is 0.12? a. Yes. Employees perform better at work when music playing. b. No. Employees don’t perform better at...
Determine whether each of the following statement is a) research hypothesis directional; b) research hypothesis nondirectional; or, c) research hypothesis null a. There is no relationship b...
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6. A two-tailed hypothesis test for a repeated-measures research design Previous studies have shown that playing...
6. A two-tailed hypothesis test for a repeated-measures research design Previous studies have shown that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen (within 5 degrees of the center). A graduate student is interested in whether playing video games increases peripheral visual perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For his study, he selects a random sample of 81 adults. The subjects...
Which of the following statements about the Null Hypothesis Decision Strategy is false? Group of answer...
Which of the following statements about the Null Hypothesis Decision Strategy is false? Group of answer choices As a last step, we state whether our scientific hypothesis is actually true or not The logic of NHDS is much the same for all research scenarios except for when we have categorical response variables Confidence in our conclusions about our population of interest is greater when we are able to obtain a random as opposed to a nonrandom sample from that population...
Choose the correst answer(s) on questions 1-5 (Please Help) Question 1 Which of the following statements...
Choose the correst answer(s) on questions 1-5 (Please Help) Question 1 Which of the following statements is true? (Select all correct answers) If the mean of two groups remains the same, the P value will not change even if the sample size (n) of those two groups changes. The P value is the probability that the alternative hypothesis is true. In a study of comparing the amount of alcohol consumed by men and women the null hypothesis would be defined...
Chose the corectt answer(s) questions (1-3) Question 1 Which of the following statements is true? (Select...
Chose the corectt answer(s) questions (1-3) Question 1 Which of the following statements is true? (Select all correct answers) If the mean of two groups remains the same, the P value will not change even if the sample size (n) of those two groups changes. The P value is the probability that the alternative hypothesis is true. In a study of comparing the amount of alcohol consumed by men and women the null hypothesis would be defined as: “There is...
9. (14 points) For each scenario below, indicate the appropriate test and alternative hypothesis by selecting...
9. (14 points) For each scenario below, indicate the appropriate test and alternative hypothesis by selecting two let- ters from the following: (A) single mean, (B) difference of means, (C) paired means, (D) correlation, (E) single proportion, (F) difference of proportions. (G) chi-square independence, (X)H: < or H : > Bo, (Y) H :8 , and (Z) H, the 2 nominal variables are not independent. Here, stands for a population parameter and its assumed value under the null hypothesis. Each...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value asso...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value associated with our test statistic is greater than the significance level of the test we have chosen. c. our sample mean is smaller than the population mean. d. the p value associated with our test statistic is smaller than the significance level of the test we have chosen. 2. In a study of simulated juror decision making, researchers...
please help Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis...
please help
Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
i need help to understand those two question from discussion in this artical please. 3. Take...
i need help to understand those two question from discussion
in this artical please.
3. Take a few minutes to re-read the first four paragraphs of the Discussion section. Explain in your own words the "metabolic suppression hypothesis" proposed by the researchers: what is the hypothesis, and why might it be plausible? WRITE YOUR RESPONSE HERE PLEASE (don't forget the in-text citation, as well as quotation marks and a page number if you are quoting in your answer) This study...
6. A two-tailed hypothesis test for a repeated-measures research design Previous studies have shown that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen (within 5 degrees of the center). A graduate student is interested in whether playing video games increases peripheral visual perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For his study, he selects a random sample of 81 adults. The subjects...
9. (14 points) For each scenario below, indicate the appropriate test and alternative hypothesis by selecting two let- ters from the following: (A) single mean, (B) difference of means, (C) paired means, (D) correlation, (E) single proportion, (F) difference of proportions. (G) chi-square independence, (X)H: < or H : > Bo, (Y) H :8 , and (Z) H, the 2 nominal variables are not independent. Here, stands for a population parameter and its assumed value under the null hypothesis. Each...
please help
Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
i need help to understand those two question from discussion
in this artical please.
3. Take a few minutes to re-read the first four paragraphs of the Discussion section. Explain in your own words the "metabolic suppression hypothesis" proposed by the researchers: what is the hypothesis, and why might it be plausible? WRITE YOUR RESPONSE HERE PLEASE (don't forget the in-text citation, as well as quotation marks and a page number if you are quoting in your answer) This study...
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