Question

3. The American Community Survey (ACS), part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten years, but with a smaller percentage of participants. The most recent survey estimates with 90% confidence that the mean household income in the U.S. falls between $69,720 and $69,922. a. Find the point estimate for mean U.S. household income. b. Find the error bound for mean U.S. household income. 4. Find the critical value, $Z_{\alpha/2}$ corresponding to a 88% confidence level.

          3. The American Community Survey (ACS), part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten years, but with a smaller percentage of participants. The most recent survey estimates with 90% confidence that the mean household income in the U.S. falls between $69,720 and $69,922.
a. Find the point estimate for mean U.S. household income.
b. Find the error bound for mean U.S. household income.
4. Find the critical value, $Z_{\alpha/2}$ corresponding to a 88% confidence level.

3 the american community survey acs part of the united states census bureau conducts a yearly census similar to the one taken every ten years but with a smaller percentage of participants th 66855

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