Question

We wish to estimate (with 95% confidence) what percent of students take the bus to school....

We wish to estimate (with 95% confidence) what percent of students take the bus to school. We survey a random sample of 850 students and get the following results:

70 students take the bus, 770 students do not take the bus and 10 students did not respond

We should use:

  • 2-SampTInt
  • TInterval
  • 2-PropZInt
  • ZInterval
  • 1-PropZInt
  • 2-SampZInt
0 0
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Answer #1

Here, sample size is given 850

Out of 70 students take the bus to school

Here, we need to find proportion

So, answer is 1 propZInt

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