In a chemistry class, Angela and Christy were performing a hypothesis test concerning the mean amount of sugar in an 8oz soda drink. Both students arrived at the same test statistics, but Angela’s result was to reject the null hypothesis, while Christy’s result was not to reject the null hypothesis. Which of the following is NOT a possible explanation for why the students had different conclusions? a. Angela was performing a one-tail test, but Christy was performing a two-tail test. b. Angela considered the test statistic to be z, while Christy considered the test statistic to be t. c. Angela computed the p-value of the test statistics, while Christy compared the test statistic to the corresponding critical value in the chart. d. Angela performed an upper-tail test, while Christy performed a lower-tail test. e. Angela was testing at an α=0.05, but Christy was testing at an α=0.01 level.
In a chemistry class, Angela and Christy were performing a hypothesis test concerning the mean amount of sugar in an 8oz soda drink. Both students arrived at the same test statistics, but Angela’s result was to reject the null hypothesis, while Christy’s result was not to reject the null hypothesis. Which of the following is NOT a possible explanation for why the students had different conclusions?
a. Angela was performing a one-tail test, but Christy was performing a two-tail test.
b. Angela considered the test statistic to be z, while Christy considered the test statistic to be t.
c. Angela computed the p-value of the test statistics, while Christy compared the test statistic to the corresponding critical value in the chart.
d. Angela performed an upper-tail test, while Christy performed a lower-tail test.
e. Angela was testing at an α=0.05, but Christy was testing at an α=0.01 level.
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