In a random sample of 50 homeowners selected from a large
suburban area, 19 said that they had serious problems with
excessive noise from their neighbors.
a) Construct a 99% confidence interval for P , the population
proportion of the homeowners who have had serious problems with
excessive noise.
b) give one sentence interpretation of your confidence
interval
c) Suppose the researcher decided that he wanted to obtain a
shorter confidence interval than the one calculated above. This
could be accomplished by:
1. Using a lower level of confidence
2. Using a larger sample size
3. using a higher level of confidence
4. Both 1 & 2
Show transcribed image text In a random sample of 50 homeowners selected from a large suburban area, 19 said that they had serious problems with excessive noise from their neighbors. Construct a 99% confidence interval for P , the population proportion of the homeowners who have had serious problems with excessive noise. give one sentence interpretation of your confidence interval Suppose the researcher decided that he wanted to obtain a shorter confidence interval than the one calculated above. This could be accomplished by: Using a lower level of confidence Using a larger sample size using a higher level of confidence Both 1 & 2
In a random sample of 50 homeowners selected from a large suburban area, 19 said that they had serious problems with excessive noise from their neighbors. Construct a 99% confidence interval for P , the population proportion of the homeowners who have had serious problems with excessive noise. give one sentence interpretation of your confidence interval Suppose the researcher decided that he wanted to obtain a shorter confidence interval than the one calculated above. This could be accomplished by: Using a lower level of confidence Using a larger sample size using a higher level of confidence Both 1 & 2
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