You are testing h0 mmean 10 against hammean lt 10 based on

Reference no: EM13632458

1. You are testing H0: M(mean) = 10 against Ha:M(mean) < 10 based on an SRS of 23 observations from a normal population. the t statistic is -3.2.

The degrees of freedom for this statistic are ...?

2. Exercise 14.19 describes a class survy in which students claimed to study an average of x bar = 118 mins on a typical weeknight. Regard these students as an SRS from the population of all first-year students at this university. Does the study give good evidence that students claim to study less than 2 hours per night on the average?

Q: Conclude: What is an appropriate conclusion for your test?

A. We do not reject the null hypothesis and conclude the average student studies less tan 2 hours per night.

B. We reject the null hypothesis and conclude the average student studies less than 2 hours per night.

C. We do not reject the null hypothesis and conclude the average student studies about 2 hours per night.

D. We reject the null hypothesis and conclude the average student studeis about 2 hours per night.

Reference no: EM13632458

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