State the null hypothesis in words (not formulas)
State the alternative hypothesis in words (not formulas).
Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work). (z-score for Monica is -.58)
When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why.
Are the results statistically significant? How do you know?
What should Lucy conclude about Monica's reading comprehension score in comparison to the population?
Lucy is excited that she remembers how to compute a z-score and does some additional computations to find Monica's z-score in math. You can find the information you need in the Weekly Data Set forum. Use it to calculate Monica's raw math score by hand. Provide your calculations in your Assignment submission (i.e., explain your work). (the raw score is 214.7)
This is the data set
Monica's reading comprehension score = 101
Mean fourth grade reading comprehension score = 104
Standard deviation of the fourth grade's reading comprehension = 5.2
Monica's z-score in math = 2.15
Mean fourth grade math score = 208
Standard deviation of the fourth grade's math scores = 3.1
The only thing i was able to do was compute the z-scores for Monica's reading Comprehension and math scores. Explaining the null and alternative hypothesis and the alpha is confusing to me. The whole assignment is confusing.