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The results of a survey show that the percent of adults in a certain town who want to add bike lanes to a major roadway is in the interval (0.47, 0.63)

(a) What is the point estimate for the percent who want to add the bike lanes?

(b) What is the poll’s margin of error?

(c) If the town’s adult population is 75,783, what is the best estimate for the number of people who would support the bike lanes?

 May 2, 2020

Best Answer 

 #1
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If you want to know the best point estimate of estimates that range from 47% to 63%, find the mean (or middle value) of these two numbers.

Calculate this, for you will need this to answer the next two questions.

 

The poll's margin of error is the amount from the mean to either of its endpoints (subtract the mean from the larger given value).

 

The best point estimate of that town's adult population can be found by multiplying the mean times the population.

 May 2, 2020
 #1
avatar+21951 
+1
Best Answer

If you want to know the best point estimate of estimates that range from 47% to 63%, find the mean (or middle value) of these two numbers.

Calculate this, for you will need this to answer the next two questions.

 

The poll's margin of error is the amount from the mean to either of its endpoints (subtract the mean from the larger given value).

 

The best point estimate of that town's adult population can be found by multiplying the mean times the population.

geno3141 May 2, 2020

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