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## Week 4 Individual Assignment- Five Steps of Hypothesis Testing

by: kimwood Notetaker

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# Week 4 Individual Assignment- Five Steps of Hypothesis Testing

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Week 4 Individual Assignment- Five Steps of Hypothesis Testing
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This 0 page Study Guide was uploaded by kimwood Notetaker on Friday November 13, 2015. The Study Guide belongs to a course at a university taught by a professor in Fall. Since its upload, it has received 12 views.

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Date Created: 11/13/15
Five Steps of Hypothesis Testing for Evaluating Solutions A researcher interested in estimating the number of boys between the ages 26 diagnosed with AS with the number of girls between the ages 26 diagnosed with AS in the United States would place the problem in the form of a hypothesis and a null hypothesis An example might be Alternate Hypothesis A larger number of boys between the ages 2 6 in the United States will be found to have AS than girls between the ages 2 6 The null hypothesis would be There would be no difference in the number of boys and girls with AS in the United States Perhaps a second Alternate Hypothesis might be A bigger number of girls will be found to have AS than boys in the United States A random but representative sample of 30 families that show signs of AS or ASD in their family roots with no more than one boy and one girl within the ages of 2 6 can be in the family From the four ASD forms AS PDD ASD BAP autism is the most similar to AS in signs and likely causes Attwood 2000 Researchers would then determine the characteristics of the comparison distribution which would define the population included in the test method and significance level The significance level is typically between zero and one The test may involve a mean proportion difference between means or proportions zscore tscore chisquare or other significant measure In this case Researchers would test the parents in the 30 families for signs of ASD then test the children for AS through imagine testing genetic testing along with having each child observed by three specialists for two hours a day twice a week for four weeks Observations shall be verbal interaction with each child childtochild verbal interaction along with observing playtime Symptoms to note are abnormal eye contact aloofness unresponsive when child s name is called child fails to use gestures when pointing lack of interactive play and lack of interest in peers Through probability or comparison researchers would compare the number of boys with AS and the number of girls with AS in their sample to determine the significance level of the probability A test statistic is then computed and is based on the number of boys in the study with AS and the number of girls in the study with AS This statistic is then compared with the comparison distribution chosen mean proportion difference zscore t score and chisquare A statistical evaluation is then calculated from the sample data and the comparison distribution to determine the acceptance or rejection of the null and alternate hypotheses The researcher would then decide whether to reject the null hypothesis or not If the probability is less than the significance level chosen the researchers will reject the null hypothesis This is determined by comparing the Pvalue to the significance level The null hypothesis is rejected if the Pvalue is less than the significance level established In this case at least 80 of the boys need to show symptoms of AS and only 20 of the girls can show signs of AS to accept Ha alternative hypothesis and to reject the Ho null hypothesis Margin of error can be no more than 3 on either side of the boys and girls Attwood T 2000 Asperger syndrome Some common questions Do girls have a di erent expression of the syndrome Retrieved May 07 2011 from httpwwwautismorgulltabout autismautism andasperger svndromean introductionautism whydomoreboysthan girlsdevelopitaspx

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