Use the table to answer the question. This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School 1 25 6 2 25 8 3 25 7 4 25 2 5 25 5 For a class project, you take five different samples of students and ask them whether they walk to school. The data is consolidated in the preceding table. Which of the following correctly shows the variability in the sample proportions (p^) ?(1 point) Responses This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School (p^) 1 25 6 0.24 2 25 8 0.32 3 25 7 0.28 4 25 2 0.08 5 25 5 0.20 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School left parenthesis p-hat right parenthesis 1 25 6 0.24 2 25 8 0.32 3 25 7 0.28 4 25 2 0.08 5 25 5 0.20 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School (p^) 1 25 6 0.12 2 25 8 0.16 3 25 7 0.14 4 25 2 0.04 5 25 5 0.10 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School left parenthesis p-hat right parenthesis 1 25 6 0.12 2 25 8 0.16 3 25 7 0.14 4 25 2 0.04 5 25 5 0.10 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School (p^) 1 25 6 0.06 2 25 8 0.08 3 25 7 0.07 4 25 2 0.02 5 25 5 0.05 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School left parenthesis p-hat right parenthesis 1 25 6 0.06 2 25 8 0.08 3 25 7 0.07 4 25 2 0.02 5 25 5 0.05 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School (p^) 1 25 6 0.18 2 25 8 0.24 3 25 7 0.21 4 25 2 0.06 5 25 5 0.20 This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School left parenthesis p-hat right parenthesis 1 25 6 0.18 2 25 8 0.24 3 25 7 0.21 4 25 2 0.06 5 25 5 0.20 Skip to navigation

1 answer

To determine which option correctly shows the variability in the sample proportions (\( \hat{p} \)), we need to look at the provided calculated sample proportions from the initial table. The values for \( \hat{p} \) based on the number of students who walk to school are:

  1. Sample 1: 6 out of 25 = \( \hat{p}_1 = \frac{6}{25} = 0.24 \)
  2. Sample 2: 8 out of 25 = \( \hat{p}_2 = \frac{8}{25} = 0.32 \)
  3. Sample 3: 7 out of 25 = \( \hat{p}_3 = \frac{7}{25} = 0.28 \)
  4. Sample 4: 2 out of 25 = \( \hat{p}_4 = \frac{2}{25} = 0.08 \)
  5. Sample 5: 5 out of 25 = \( \hat{p}_5 = \frac{5}{25} = 0.20 \)

The calculated sample proportions are as follows:

  • Sample 1: 0.24
  • Sample 2: 0.32
  • Sample 3: 0.28
  • Sample 4: 0.08
  • Sample 5: 0.20

Now, we need to check the provided response options to see which one matches these values:

  1. One option lists \( p = 0.24, 0.32, 0.28, 0.08, 0.20 \) (This matches the calculated proportions).
  2. Another option provides values that are all significantly lower, indicating incorrect proportions (0.12, 0.16, etc.).
  3. Other options also provide inappropriate proportions.

The correct response that shows the sample proportions \( \hat{p} \) accurately is:

This table shows calculated sample proportions for students who walk to school. Sample Students in the Sample Number Who Walk to School (p^) 1 25 6 0.24 2 25 8 0.32 3 25 7 0.28 4 25 2 0.08 5 25 5 0.20 (the first option corresponds correctly to the calculated values).