QUESTION 1 The Childhood Autism Rating Scales (CARS), for the population at large, has a mean of 33. A social worker is interested in knowing whether a new
therapy technique employed with Autistic Children lowers their scores on the CARS. She takes a random sample of 11 children with Autism, has them
undergo the new therapy technique for three months, and finds their scores to be the following on the CARS: 32.01, 33.22. 30.99, 31.64, 33, 32.50,
33.67.33.11, 31.54, 31.99.32. Test the null hypothesis at the .01 level of significance.
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