APPLET Random Numbers 1.3 ACTIVITY You can find the interactive applet for this activity at MyLab Statistics. SECTION 1.3 Data Collection and Experimental Design 27 The Random numbers applet is designed to allow you to generate random numbers from a range of values. You can specify integer values for the Minimum, Maximum, and Sample Size. You should not use decimal points when filling in the fields. When Sample is clicked, the applet generates random values, which are displayed as a list in the text field. Minimum: Allow repeats (sample with replacement) Maximum: Sample Size: Sample Random numbers 1 23 9 51 23 66 66 40 24 66 20 100 10 EXPLORE Step 1 Specify a Minimum value. Step 2 Specify a Maximum value. Step 3 Specify the Sample Size. Step 4 Click Sample to generate a list of random values. DRAW CONCLUSIONS 1. Specify the Minimum, Maximum, and Sample Size to be 1, 20, and 8, respectively, as shown. Run the applet. Continue generating lists until you obtain one that shows that the random sample is taken with replacement. Write down this list. How do you know that the list is a random sample taken with replacement? Explain how the samples will change when you uncheck Allow repeats. Minimum: Allow repeats (sample with replacement) Maximum: Sample Size: Sample Random numbers 1 20 8 2. Use the applet to repeat Example 3 on page 21. What values did you use for the Minimum, Maximum, and Sample Size? Which method do you prefer? Explain. APPLET
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