1. A clothing retailer is calculating the number of shirts sold at each of their locations....
1. A clothing retailer is calculating the number of shirts sold at each of their locations. Is this a discrete or continuous variable? Note, stores cannot sell partial shirts.
| a. Continuous |
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b. Discrete 2. The p-value is the probability that a researcher is making a Type-I error if they decide to reject the null hypothesis.
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1. A clothing retailer is calculating the number of shirts sold at each of their locations....
1. In testing hypotheses, the researcher initially assumes that the alternative hypothesis is true and uses the sample d...
1. In testing hypotheses, the researcher initially assumes that the alternative hypothesis is true and uses the sample data to reject it. True False 2. The first step in testing a hypothesis is to establish a true null hypothesis and a false alternative hypothesis. True False 6. The power curve provides the probability of Correctly accepting the null hypothesis Incorrectly accepting the null hypothesis Correctly rejecting the alternative hypothesis Correctly rejecting the null hypothesis 7. Suppose that Ho: μ ≤...
The alternate hypothesis is a statement that the value of a population parameter (such as proportion,...
The alternate hypothesis is a statement that the value of a population parameter (such as proportion, mean, or standard deviation) is equal to some claimed value. True O False A Uniform probability distribution is applicable to the scenarios where the set of possible outcomes can take on values in a continuous range (e.g. real numbers), such as the temperature on a given day." True False A larger standard deviation indicates that the data is further away from; hence, the normal...
2. (2 True-False. Just say whether each statement is True or False – no need to justify...
2. (2 True-False. Just say whether each statement is True or False – no need to justify your answer. 1. If the number of trials in the binomial distribution increases by 1 (and P equals .50), the probability of getting either of the most extreme possible outcomes (that is, 0 or N) is cut in half. 2. If the number of trials in the binomial distribution increases by 1 (and P does not equal .50), the probability of getting either of...
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1. A parent believes her child has strep throat. The child does have strep but the...
1. A parent believes her child has strep throat. The child does have strep but the test at the doctor's comes back negative. A) Type 1 error B) Type Il error C ) No error, correct decision. 2. A coach believes that the athletes on the team are doing drugs. An athlete who has never used any drugs tests positive for drug use. A) Type I error B) Type Il error C) No error, correct decision. 3. A can of...
ESAND ABUSES 1 Uses Hypothesis Testing Hypothesis testing is important in many different fields because it gives a scientific procedure for assessing the validity of a claim about a population. Some...
ESAND ABUSES 1 Uses Hypothesis Testing Hypothesis testing is important in many different fields because it gives a scientific procedure for assessing the validity of a claim about a population. Some of the concepts in hypothesis testing are intuitive, but some are not. For instance, the American Journal of Clinical Nutrition suggests that eating dark chocolate can help prevent heart disease. A random sample of healthy volunteers were assigned to eat 3.5 ounces of dark chocolate each day for 15...
According to government records, the starting salary for an individual with a BA degree in Liberal...
According to government records, the starting salary for an individual with a BA degree in Liberal Arts in 2010 was $35,000 with a standard deviation of $5,000. A researcher at a small liberal arts college wants to see if the graduates at his college had higher starting salaries than the national average. A random sample of 25 students who graduated in 2010 reveals that their average starting salary was, X = $38,000. Using the data, suppose the true mean salary...
1) Determine whether each of the following applies to the mull or the alternative hypothesis. A)...
1) Determine whether each of the following applies to the mull or the alternative hypothesis. A) Ho B) Ha or H C) The hypothesis that has equality (i.e. no difference). D) The hypothesis that has no equality (i.e. greater, less, or different). E) The hypothesis we assume is true until we have evidence to reject it. F) The research hypothesis. The goal in a hypothesis test is to test a claim. hypothesis. hypothesis. G) The statistical evidence can only support...
Statistics Exam 2 (1) Compatibility Mode Layout References Mailings ReviewView HelpTell me what you want to...
Statistics Exam 2 (1) Compatibility Mode Layout References Mailings ReviewView HelpTell me what you want to do A-e. A.|ー 1,-. Isa-B. ||1Normal 1No Spac Heading 1 Heading 2 Title Paragraph Styles a matched-subjects design d. all of the above would require the same number of subjects 22. For an experiment comparing two treatment conditions, an independent-measures design would obtain score(s) for each subject and a repeated-measures design would obtainscore(s) for each subject a. 1, 1 b. 1,2 c. 2,1 d....
1. Regarding a two-tailed z-test with an alpha of 0.05, we would need a Zobt with...
1. Regarding a two-tailed z-test with an alpha of 0.05, we would need a Zobt with an absolute value less than 1.96 in order to reject the null hypothesis. True or False? 2. What happens to the probability of committing a Type I error if the level of significance is changed from α = 0.05 to α = 0.01? A. It increases B. It decreases C. It stays the same D. Cannot determine 3. Given a Zobt of -1.99 ,...
The alternate hypothesis is a statement that the value of a population parameter (such as proportion, mean, or standard deviation) is equal to some claimed value. True O False A Uniform probability distribution is applicable to the scenarios where the set of possible outcomes can take on values in a continuous range (e.g. real numbers), such as the temperature on a given day." True False A larger standard deviation indicates that the data is further away from; hence, the normal...
1. A parent believes her child has strep throat. The child does have strep but the test at the doctor's comes back negative. A) Type 1 error B) Type Il error C ) No error, correct decision. 2. A coach believes that the athletes on the team are doing drugs. An athlete who has never used any drugs tests positive for drug use. A) Type I error B) Type Il error C) No error, correct decision. 3. A can of...
ESAND ABUSES 1 Uses Hypothesis Testing Hypothesis testing is important in many different fields because it gives a scientific procedure for assessing the validity of a claim about a population. Some of the concepts in hypothesis testing are intuitive, but some are not. For instance, the American Journal of Clinical Nutrition suggests that eating dark chocolate can help prevent heart disease. A random sample of healthy volunteers were assigned to eat 3.5 ounces of dark chocolate each day for 15...
1) Determine whether each of the following applies to the mull or the alternative hypothesis. A) Ho B) Ha or H C) The hypothesis that has equality (i.e. no difference). D) The hypothesis that has no equality (i.e. greater, less, or different). E) The hypothesis we assume is true until we have evidence to reject it. F) The research hypothesis. The goal in a hypothesis test is to test a claim. hypothesis. hypothesis. G) The statistical evidence can only support...
Statistics Exam 2 (1) Compatibility Mode Layout References Mailings ReviewView HelpTell me what you want to do A-e. A.|ー 1,-. Isa-B. ||1Normal 1No Spac Heading 1 Heading 2 Title Paragraph Styles a matched-subjects design d. all of the above would require the same number of subjects 22. For an experiment comparing two treatment conditions, an independent-measures design would obtain score(s) for each subject and a repeated-measures design would obtainscore(s) for each subject a. 1, 1 b. 1,2 c. 2,1 d....
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