1. p-value is the smallest area under the curve in which we would reject the null hypothesis. True or false.
2. For a one tail test, we divide the level of significance (alpha) by 2 to calculate the critical value. True or false.
3. A p-value can be calculated by the area under the curve to the left of Z when Z is less than the mean. True or false.
4. A respondent to a survey indicates that she drives a Ford Taurus. This is an example of qualitative data. True or false.
1. True. If p-value<
, then we reject the null hypothesis. This means p-value got the
smaller area under the curve.
2. False. For a one tailed test, we do not divide
by 2. For a two tailed test, we only divide
by 2.
3. True. To calculate probability of Z is less mean. We z-tables which gives us curve of left of Z i.e, cumulative distribution table.
4. True. Because qualitative data are measures of type, say Names or other qualitative information.
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