147-sample5

# 147-sample5 - 1. When performing a test of significance a...

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When performing a test of significance a box model is set up, the null and alternative hypotheses are formulated and a. the Student's curve is used when the SD of the box is known. b. the Student's curve is used when the histogram of the box is quite different from the normal curve. c. the Student's curve is used when the number of measurements (draws from the box) is less than 25 and the histogram of the box is not too different from a normal curve. d. the Student's curve is used when the number of measurements (draws from the box) is very large but the histogram is quite different from the normal curve. e. both (a) and (d) are true. Answer (c) 2. When calculating the standard error from a box model which one of the following statements is not true? a. SE for sum = x SD of box. b. SE for average = . c. SE for average = . d. SE for percent = x 100%, where SE for count = SE for sum from a 0 - 1 box. e. All of the above statements are true. Answer (e) 3. When performing a test of significance, a. the P-value gives the chance that the null hypothesis is true. b. the larger the P-value the more evidence there is that the alternative hypothesis is true. c. if the P-value is less than 1% then the result is not significant. d. the P-value is computed assuming the null hypothesis is true. e. both (a) and (b) are true. Answer (d) 4. When drawing tickets at random with replacement from a box, the SD of the box can be estimated by a. using the SE of the sample average to estimate the SD of the box. b.

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## 147-sample5 - 1. When performing a test of significance a...

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