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Research Problem: . A large research project has been going on for several years. In this project, new babies are given a particular vitamin, and
Research Problem: . A large research project has been going on for several years. In this project, new babies are given a particular vitamin, and then the research team follows their development during the first 2 years of life. So far, the vitamin has not speeded up the development of the babies. The mean is 14 months (M = 14), the standard deviation is 3 months (SD = 3), and the ages follow a normal curve. Based on the normal curve percentages, you can figure that only about 2% of babies start walking before 8 months of age; these are the babies who are more than 2 standard deviations below the mean. Do the Steps in Hypothesis Testing 1. State the Hypothesis (Ho and HI ) 2. Set the criteria for decision. (In this research, set the criteria for alpha level= 0.02 equivalent to z 2.33) 3. Compute for the sample statistic (Plot the answer in the normal distribution) 4. Make a decision
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