A manager believes that the introduction of a new model of keyboard for administrative staff will increaseproductivity. If productivity increases substantially, she will replace all the firm's current keyboards with thenew models. To test this belief, she asked a sample of 12 administrative staff members to type a standarddocument on his/her old keyboard, and the number of words per minute were measured. After receivingthe new keyboards and spending a few weeks becoming familiar with their operation, each employeethen typed the same document using the new model of keyboard. Let Difference = New – Old.1. This is an example of a:O a. One-sample z-testO b. One-sample t-testO c. One-sample proportionO d. Dependent samples t-testO e. Independent samples t-test2.The test statistic value for this right-sided test is equal to 2.38. In which interval will the p-value of this hypothesis test fall?) a. (0, 0.01)O b. (0.01, 0.05)OC. (0.05, 0.10)Od.(0.10, 1)

We have given that The information of new model and old model keyboard. Let difference = New - Old

Answered: 1. This is an example of a: O a.…

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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A researcher is interested in assessing if there are differences in the average number of monthly religious event attendances across religious affiliations. Religious event attendance is measured as an interval-ratio variable: it is the number of events that each survey respondent reported attending in the previous month. Religious affiliation is measured as a nominal variable with the following categories: Protestant, Catholic, Jewish, Muslim, Hindu, Buddhist, other, and not religious. Which of the following hypothesis tests would be appropriate, given the types of variables presented? O Chi-square test O Two-sample difference-of-proportions z-test O ANOVA O One-sample difference-of-proportions z-test
In a 25-unit sample of a variable with a population average of 50, the Mean was 53 and the variance was 100. Which of the following is the test statistic for hypothesis testing? Please select one: a. 2.5 b. 1 c. 0.75 d. 3 e. 1.5
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Is the proportion of wildfires caused by humans in the south different from the proportion of wildfires caused by humans in the west? 350 of the 519 randomly selected wildfires looked at in the south were caused by humans while 383 of the 500 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a = 0.01 level of significance? Rectangular Snip a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer | (please enter a decimal) Select an answer v Select an answer H1: Select an answer v Select an answer vSelect an answer v (Please enter a decimal) c. The test statistic ? v = (please show your answer to 3 decimal places.)
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