ssmentMULTIPLE CHOICE:Direction: Read and analyze each statement carefully. Write your answer in your activitysheet/notebook.1. In hypothesis testing, this denotes that there is no difference between two parameters.a. Alternative hypothesisc. Population meand. Null hypothesisb. Population proportion2. The rejection region refers to the region where the value of the test statistic lies forwhich we will reject the null hypothesis. This region is also calleda. Hypothesis testing regionc. Z-score regiond. Probability regionb. Critical region3. This refers to an intelligent guess about a population proportion.a. Hypothesisc. Decisionb. Test statisticd. Interpretation4. What mathematical model is appropriate for decision making?c. test-statistica. Graphical representationb. Normal curved. None of theseon region for a two-

Q.No Correct answer Explanation 1 Option A If the alternative hypothesis states the population…

Answered: 1. In hypothesis testing, this denotes…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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1.Which is the alternative hypothesis? a. There is a significant difference between a person's age and the number of hours he or she sleeps. b. There is no significant relationship between a person's age and the number of hours he or she sleeps. c. There is a significant relationship between a person's age and the number of hours he or she sleeps. d. There is no significant difference between a person's age and the number of hours he or she sleeps. 2. What is the df? 3. What is the critical value from the table?
2. Below is data on the number of vehicles involved in a fatal crash and city in California during 2019. City Single-ve Two-vehicle hicle crash fatalities Los Angeles 175 San Diego 61 San Jose San Francisco Fresno 49 22 33 Sacramento 28 Long Beach 26 crash fatalities 69 19 19 a 13 2. Is there enough evidence to support that the number of vehicles involved in a crash is related to the city in which the accident occur? null and alternate hypotheses test statistic, critical value and/or p-value expected counts reject or fail to reject the null hypothesis ● conclusion in plain English
4. Researchers believe that men are more physically aggressive than women. To test this, researchers ask 20 participants (10 male, 10 female) to rate how aggressive they are on a scale from 1 to 10. Their scores are listed below. Conduct all six steps of hypothesis testing (use p=.05). Be sure to label all six steps. Also, include a concluding statement (which should include the effect size). Males Females 9 1 8 3 9 5 7 2 8 4 6 3 5 2 9 5 7 4 8 3 M 7.6 3.2 s 1.35 1.32
It is a claim about a population characteristic that is initially assumed to be true. A. Alternative hypothesis B. Null hypothesis C. One-tailed Test D. Two-tailed Test
2. Which one of the following statements is correct? A. If you are told a sample percentage is 25%, you would need to know the sample size in order to convert that percentage to a proportion. B. We always begin a hypothesis test by assuming that the alternative hypothesis is true. C. The test statistic is affected by the size of the sample. D. A small P-value means we have evidence in favor of the null hypothesis. E. The test statistic will be negative if the claimed population proportion is smaller than the sample proportion.
A formula that provides the evidence against a null hypothesis is called: A. Test-statistic B. Population statistic C. Both a and b D. Neither a or b
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As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean. There is not sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean. The sample data support the claim that the first population mean is less than the second population mean. There is not sufficient sample evidence to support the claim that the first population mean is less than the second population mean.
It is a hypothesis which is tested for the purpose of rejection under the assumption that it is true. A. Alternative hypothesis B. Composite hypothesis C. Null hypothesis D. Statistical hypothesis
aps Microsoft Word -... 12) and 13) Hypothesis testing for proportions You must show your work: 1. Clearly state the significance level, sample size, sample proportion 2. Clearly state the null hypothesis and alternative hypothesis 3. Present the test statistics (z-score) and P-value 4. Decided if the null hypothesis should be rejected for the alternative or not. 5. Write out the conclusion to the question. ► The recidivism rate for convicted sex offenders is 15%. A warden suspects that this percent is higher if the sex offender is also a drug addict. Of the 320 convicted sex offenders who were also drug addicts, 58 of them became repeat offenders. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? Select an answer H₁: ? Select an answer ✓ c. The test statistic ? = d. The p-value = e. The p-value is ? ✓ a f. Based on this, we should g. Thus, the final conclusion is that…
1. In general terms, what is a hypothesis test? a. A descriptive technique that allows researchers to describe a sample b. A descriptive technique that allows researchers to describe a population c. An inferential technique that uses the data from a sample to draw inferences about the population d. An inferential technique that uses the data from a population to make predictions about the sample
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1. In hypothesis testing, this denotes that there is no difference between two parameters. a. Alternative hypothesis c. Population mean b. Population proportion d. Null hypothesis