Research Question 2: Does suffering from anxiety alter people’s self-reported ability to focus? The mean attention rating on the Conner’s Adult ADHD Rating Scale (CAARS) is 50 and the standard deviation is 10. If we recruit a sample of 100 adults diagnosed with Generalized Anxiety Disorder and find that their mean CAARS score is 49, using an alpha-level of .05, can we conclude that anxiety appears to impact attention ratings? What if we recruited a sample of 500 adults? Answer to part a State research question and research hypothesis: Research Question: Independent Variable: Dependent Variable: Research Hypothesis: State null and alternative hypotheses: H0: H1: Define level of significance (alpha level) α = Collect data and compute descriptive statistics Compute test statistic: Determine probability of test statistic: Reject or do not reject H0: Interpret results of hypothesis test to answer research question!!! Answer to part b State research question and research hypothesis: Research Question: Independent Variable: Dependent Variable: Research Hypothesis: State null and alternative hypotheses: H0: H1: Define level of significance (alpha level) Collect data and compute descriptive statistics Compute test statistic: Determine probability of test statistic: Reject or do not reject H0: Interpret results of hypothesis test to answer research question!!!

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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Research Question 2:

Does suffering from anxiety alter people’s self-reported ability to focus? The mean attention rating on the Conner’s Adult ADHD Rating Scale (CAARS) is 50 and the standard deviation is 10.

If we recruit a sample of 100 adults diagnosed with Generalized Anxiety Disorder and find that their mean CAARS score is 49, using an alpha-level of .05, can we conclude that anxiety appears to impact attention ratings?
What if we recruited a sample of 500 adults?

Answer to part a

State research question and research hypothesis:

Research Question:

Independent Variable:

Dependent Variable:

Research Hypothesis:

State null and alternative hypotheses:

H₀:

H₁:

Define level of significance (alpha level)

α =

Collect data and compute descriptive statistics

Compute test statistic:

Determine probability of test statistic:

Reject or do not reject H₀:

Interpret results of hypothesis test to answer research question!!!

Answer to part b

State research question and research hypothesis:

Research Question:

Independent Variable:

Dependent Variable:

Research Hypothesis:

State null and alternative hypotheses:

H₀:

H₁:

Define level of significance (alpha level)

Collect data and compute descriptive statistics

Compute test statistic:

Determine probability of test statistic:

Reject or do not reject H₀:

Interpret results of hypothesis test to answer research question!!!

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