Test the hypothesis using the P -value approach. Be sure to verify the requirements of the test. \( H_{0}: \mathrm{p}=0.5 \) versus \( \mathrm{H}_{1}: \mathrm{p}>0.5 \) \( \mathrm{n}=250 ; \mathrm{x}=140 ; \alpha=0.01 \) Click here to view page 1 of the table. Click here to view page 2 of the table. A. Reject the null hypothesis, because the \( P \)-value is greater than \( \alpha \). B. Do not reject the null hypothesis, because the \( P \)-value is less than \( \alpha \). C. Reject the null hysothesis, because the \( P \)-value is less than \( \alpha \). D. Do not reject the null hypothesis, because the \( P \)-value is greater than \( \alpha \).

The test scores of 40 students are listed below. Find \( \mathrm{P}_{85} \). \( \begin{array}{l}30,35,43,44,47,48,54,55,56,57,59,62,63,65,66,68,69,69,71,72,72,73, \\ 74,76,77,77,78,79,80,81,81,82,83,85,89,92,93,94,97,98\end{array} \)

In order to monitor the ecological health of the Florida Everglades, various measurements are recorded at different times. The bottom temperatures are recorded at the Garfield Bight station and the mean of 30.4 C is obtained for 61 temperatures recorded on 61 different days. Assume a population standard deviation of 1.7 C , test the claim that the population mean is greater than 30.0 C . Use a 0.10 significance level. Decide whether to reject or fail to reject the null hypothesis and state your conclusion. You would [Select] [Select ] population mean is greater than 30.0 C .

Что такое диаграмма рассеяния и для чего она используется?

How many college students are needed to estimate the mean grade point average of all current college students in the United Sates within 20\% percentage points with a \( 99 \% \) confidence. An earlier study gave an estimate of 0.79 for the population standard deviation. \( \mathrm{n}= \)

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Consumer Reports magazine of "best buy, recommended, not recommended" [Select ]