(See Steps) The Gallup poll asks respondents how they would rate the honesty and ethical standards of people in different fields--very high, high, average,


Question:

The Gallup poll asks respondents how they would rate the honesty and ethical standards of

people in different fields--very high, high, average, low, or very low. The percentage who rated

clergy "very high or high" dropped from 60% in 2000 to 54% in 2005. This may have been due

to scandals involving sex abuse; or it may have been a chance variation. (You may assume that

in each year, the results are based on independent simple random samples of 1,000 people in

each year.)

  1. What is the null hypotheses?
  2. Perform a one-sided, two-sample z-test (compute the z-statistic and p-value and show your work).
  3. What can you conclude?

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