4. Six sets of identical twins were randomly selected from a population of identical twins. One child wastaken at random from each pair to form an experimental group. These children participated in a programdesigned to promote creative thinking. The other child from each pair was part of the control group thatdid not participate in the program to promote creative thinking. At the end of the program, a creativeproblem-solving test was given with the results shown in the following table:Twin PairABCD E FExperimental group 53 35 12 25 33 4739 21 5 18 21 42Higher score indicate better performance in creative problem solving. Do the data support the claimControl groupthat the program of the experimental group did promote creative problem solving?

Null hypothesis: μDifference=0 Alternate hypothesis: μDifference>0 This is one tailed test. The…

Answered: p. These children The other child from…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 40 ounces and a standard deviation of 10 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 20 and 70 ounces? c) What percentage of the widget weights lie above 30 ? Question Help: Video Message instructor %
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which day did the students awnser the mean number of problems for the week?
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Type your answer in the box provide: The following table contains data from a study of two airlines which fly to Small Town, USA. If one flight is selected, find P ( on time and Upstate Airlines). ( round your answer to three decimal places) number of flights which were on time number of flights which were late podunk Airlines 33 6 upstate Airlines 43 5
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Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke Prevention Study asked whether adding another anticlotting drug named dipyridamole would make a difference for patients who had already had a stroke. Here are the data on strokes during the two years of the study: Aspirin alone Apsirin & Dipyridamole Number of Patients This test is two-t led. What is the test statistic? -2.700 200 = V 200 Is there a significant difference in the proportion of strokes in the two groups? Test at a = 0.05. Round your answers to three decimal places, and round any interim calculations to four decimal places. #v Fill in the hypotheses below where p₁ denotes the proportion of patients in the aspirin group who suffered a stroke and på denotes the proportion of patients in the aspirin & dipyridamole group who suffered a stroke. Ho: P₁ Ha: P₁ Number of Strokes P₂ 60 P₂ 86 Using your answer from the previous question, find the p-value. ▼ Part 2 of 4 Part 3 of 4
IDENTIFY THE P VALUE AS WELL
Lexie wants to know the proportion of shoppers at Lakeline Mall who are 25 years old or younger. She takes a random sample of 300 shoppers at Lakeline Mall and sees that 189 of them were 25 years old or younger. Let p represent the proportion of shoppers at Lakeline Mall that are 25 years old or younger. Identify the population and the sample in this study. Population = the 300 shoppers selected; Sample = all of the shoppers at this mall. Population = all of the shoppers at this mall; Sample = the number of people 25 years old or less. Population = all of the shoppers at this mall; Sample = the 300 shoppers selected. Population = the 300 shoppers selected; Sample = the number of people 25 years old or less.
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p. These children The other child from each pair was part of the conta omote creative thinking. At the end of the program, results shown in the following table: ABCDE F 53 35 12 25 33 47