4. What is the standard error of measure (SEM) for a sample of n-1,200 with s-257 Further, explain and show calculations how to arrive at 2.7%.

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4. What is the standard error of measure (SEM) for a sample of n=1,200 with s-257 Further.
explain and show calculations how to arrive at # 2.7%.
5. If the Significance level is .01 then what is the chance of making a Type I error?
6. If a class of 30 students had an average mean score of 70 on a test with a standard deviation of
7 and the teacher wanted to compare these students to the national population score with a
u=65. What would the "t" value be, is there a significant difference at an alpha level of .01, and
that is the interpretation of the results.
7. Three brands of basketballs with 30 people liking brand A basketball, 20 people liking brand
B, and 62 people liking brand C. Using a chi-square test determine x²,
obe df, x²
if we reject or
accept the No hypotheses for an alpha level of .05 and what is the interpretation of the results.
wies
Transcribed Image Text:4. What is the standard error of measure (SEM) for a sample of n=1,200 with s-257 Further. explain and show calculations how to arrive at # 2.7%. 5. If the Significance level is .01 then what is the chance of making a Type I error? 6. If a class of 30 students had an average mean score of 70 on a test with a standard deviation of 7 and the teacher wanted to compare these students to the national population score with a u=65. What would the "t" value be, is there a significant difference at an alpha level of .01, and that is the interpretation of the results. 7. Three brands of basketballs with 30 people liking brand A basketball, 20 people liking brand B, and 62 people liking brand C. Using a chi-square test determine x², obe df, x² if we reject or accept the No hypotheses for an alpha level of .05 and what is the interpretation of the results. wies
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