A researcher is interested in examining whether self-affirming oneself leads to increases in happiness scores. The researcher has a sample of 15 Grade 8 students spend 5 minutes each morning and evening repeating a series of positive statements to themselves in a mirror while looking right into their own eyes. After 30 days of doing this task, the researcher asks the subjects to rate their level of happiness on an interval scale of 1-10, where higher scores represent higher levels of happiness. Below are the data in Figure 1. SECTION I: Using the data from this histogram -use formulas not excel Using the standard normal curve, and the data obtained in Section I, answer the following questions: What percentage of the sample scored above this score? What percentage of the sample scored below this score? Is a student that scored X = 3 considered as being an extreme or typical score in the distribution? (Justify your response in one sentence) What percentage of the sample scored above this score and what percentage of the sample scored below this score?
A researcher is interested in examining whether self-affirming oneself leads to increases in happiness scores. The researcher has a sample of 15 Grade 8 students spend 5 minutes each morning and evening repeating a series of positive statements to themselves in a mirror while looking right into their own eyes. After 30 days of doing this task, the researcher asks the subjects to rate their level of happiness on an interval scale of 1-10, where higher scores represent higher levels of happiness. Below are the data in Figure 1. SECTION I: Using the data from this histogram -use formulas not excel
Using the standard normal curve, and the data obtained in Section I, answer the following questions:
What percentage of the sample scored above this score? What percentage of the sample scored below this score?
Is a student that scored X = 3 considered as being an extreme or typical score in the distribution? (Justify your response in one sentence)
What percentage of the sample scored above this score and what percentage of the sample scored below this score?
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