Statistical Inference-Quiz 6

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For this quiz, use the EG DIB evaluation dataset. Note that the variable "total_ely1" contains Year 1 endline test scores. For now, ignore covariates or clustering in your calculations.

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1. Suppose that you sample 50 students and get a sample mean of 10.8 and a standard deviation of 3.4. Would you reject the null hypothesis that the true population mean is 9.6, with a two-tailed hypothesis test and a 5% level of significance? Use Stata's ttesti command. *

1 point

Yes

Not enough information

2. Suppose that the EG dataset is a sample of students from the target population (rather than the population itself). Using this data, test the null hypothesis that the true population mean of the variable "total_ely1" is 10.0. Would you reject the null hypothesis, using a two-tailed hypothesis test and a 5% level of significance? Use Stata's ttest command. *

1 point

Yes

Not enough information

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