step 1. Start by looking at the distribution of sample means when random samples are selected from a population that has a normal distribution with mean m 5 100 and standard deviation s 5 10. Make sure that "Normal" is selected as the population shape and enter 100. When you click on the sample button, the app will generate 1000 random samples of size 5 from this normal population, calculate the sample mean for each sample, and display a histogram of the sample means. You should see a screen similar to the one that follows, although yours will be different since you will not have the same set of 1000 random samples. Write a brief description of the histogram of the sample means, being sure to discuss center, variability, step 2. Next, click the reset button to clear the display. Generate a new histogram of 1000 sample means for random samples of size 10. Write a brief description of the histogram of the sample means, being sure to discuss center, variability, and shape. How does this distribution compare to the distribution of sample means from Step 1? step 3. Repeat Step 2 for sample sizes of 20 and 50. step