A researcher is comparing two multiple-choice tests with different conditions. Inthe first test, a typical multiple-choice test is administered. In the second test,alternative choices (i.e. incorrect answers) are randomly assigned to test takers.Which test produced more homogeneous results? The results from the two testsare shown below.Number of respondentsEx[x²Regular testRandomized AnswerBoth testsNone of the testsOther:Regular Test2061421,467Randomized Answer152956,812

Introduction: It is required to identify which of the two tests- regular test or randomized test-…

Answered: A researcher is comparing two…

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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random sample of residents from various income brackets were asked their operating on tac reform for the country of Guyana. The data so gathered were analyzed by a statistician and the results he obtained using MINITAB are shown below: Low. Middle. Might. Total For. 26 75 14 115 (30.67) (51.11) (33.22) Against. 60 95 105 260 (69.33) (115.56) (**) Neutral. 34 30 11 75 (20) (33.33) (21.67) Total. * 200 130 450 Child's = 0.71+ 11.17+ 11.12+ ***+ 3.66+ 11.89+ 9.8 0.33+ 5.25=55.2 DF =??, PM value = ??? Carefully define the…
if a researcher concludes that cereal color has no effect on amount consumed but the researcher was wrong in this conclusion which of the following best represents his decision? correct decision, type 1 error, type 2 error, or type 3 error
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Many businesses and organizations insist that official communications use professional-looking fonts, such as Times New Roman. Fonts characterized as less Which method describes an experiment? Method A is an experiment because the students choose their own font. professional, such as Comic Sans, should be avoided. A student would like to determine if font choice makes a difference in the average grade on a typed response in English classes. There are currently four English Method B is an experiment because the students are randomly assigned a font. Both methods describe experiments because both fonts are used on the assignment. classes available from which the student can collect data, and each class has a similar writing assignment. O Neither method describes an experiment because a third font should be included for comparison. The student considers two methods for collecting data. Method A: At the start of the assignment, students choose a font, either Times New Roman or Comic Sans,…
find p value and its meaning please A survey of 1000 adults from a certain region asked, "If purchasing a used car made certain upgrades or features more affordable, what would be your preferred luxury upgrade?" The results indicated that 58% of the females and 51% of the males answered window tinting. The sample sizes of males and females were not provided. Suppose that of 600 females, 348 reported window tinting as their preferred luxury upgrade of choice, while of 400 males, 204 reported window tinting as their preferred luxury upgrade of choice. Complete parts (a) through (d) below. a. Is there evidence of a difference between males and females in the proportion who said they prefer window tinting as a luxury upgrade at the 0.05 level of significance? State the null and alternative hypotheses, where π1 is the population proportion of females who said they prefer window tinting as a luxury upgrade and π2 is the population proportion of males who said…
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Luonpea Reattempt this question dudnsanOus When you are done, click here to see a summary of your score Question with last attempt is displayed for your review only In a certain school district, it was observed that 34% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 118 out of 288 students are only children. The school district administrators want to know if the proportion of only children in the special program is significantly different from the proportion for the school district. Test at the o 0.01 level of significance What is the hypothesized population proportion for this test? 251 P = (Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol) Based on the statement of this problem, how many tails would this hypothesis test have? one-tailed test two-tailed test Choose the correct pair of hypotheses for this situation: (B) (A) |(C) Ho:…
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