Do these data show sufficient evidence to reject the claim that the choice of college major is independent of hand posture? let alpha =0.05
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In a psychology experiment, 140 students were divided into majors em-
phasizing left-hemisphere (LH) brain skills (e.g. philosophy, physics, and
mathematics) and majors emphasizing right-hemisphere (RH) skills (e.g. art,
music, theater, and dance). They were also classified into one of three groups
on the basis of hand posture (right noninverted (RN), left inverted (LI), and
left noninverted (LN)). The data are as follows:
LH RH
RN 89 29
LI 5 4
LN 5 8
Do these data show sufficient evidence to reject the claim that the choice of college major is independent of hand posture? let alpha =0.05
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- 6) In a psychology experiment, 140 students were divided into majors em phasizing left-hemisphere (LH) brain skills (e.g. philosophy, physics, and mathematics) and majors emphasizing right-hemisphere (RH) skills (e.g. art, music, theater, and dance). They were also classified into one of three groups on the basis of hand posture (right noninverted (RN), left inverted (LI), and left noninverted (LN)). The data are as follows: LH RH RN 89 29 LI 5 4 LN 5 8 Do these data show sufficient evidence to reject the claim that the choice of college major is independent of hand posture? Let α = 0.05.Hospital administrators at a local hospital are interested in quality of care. As such, they ask a random sample of patients that have used the hospital's health care services to fill out a questionnaire. The questionnaire has questions about the patient's worry (negative, positive), the hospital staff's communication skills (low, medium, high), and satisfaction with medical care. The administrators are interested in how patient's worry and their assessment of the hospital staff's communication impact their satisfaction with medical care. The survey data are below. What can the administrators conclude with an α of 0.01? Communication Worry low med high negative 76868 54545 67495 positive 86677 78687 78666 A) Input the appropriate value(s) to make a decision about H0.Worry: p-value = Communication: p-value = Interaction: p-value = B) Using the SPSS results, compute the corresponding effect size(s) and indicate magnitude(s).Worry: η2 = Communication: η2 =…A personality study on university students was conducted to investigate the hypothesis that extroverts have lower grades than introverts. Fifteen students completed a questionnaire that classified them as "extroverts", "average", "introverts". Overall grade point averages on a 5 point scale were reported and the following data were obtained: Group 2 (Average) Group 1 (Introverts) 3 2 Group 3 (Extroverts) 3 2 1 4 15 2 3 3 Test the hypothesis at the 5% significance level (a = 0.05) using the 5-step hypothesis testing procedure (show ALL steps). Make sure to clearly state the null and alternative hypotheses in formal symbol notation (or in words if formal symbol notation is not appropriate). Show your work. Show the formula and all steps of the calculations and not just the final answer. Round all values to 2 decimal places. If ANOVA is the appropriate test, you must show the complete ANOVA summary table.
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