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State the dependent variable

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Reference no: EM131908125

Z-Test

Monica's reading comprehension score = 27 

Mean fourth grade reading comprehension score = 21 

Standard deviation of the fourth grade's reading comprehension = 1.8 

Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district

1. State the dependent variable.

2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why.

3. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why

Reference no: EM131908125

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