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A recent poll of 1800 people showed that 35% believe gas prices will go down. Find the best point estimate of the proportion of all people who believe gas prices will go down.

a 0.30

b 0.35

c 0.65

d 35

Verified Answer :

toporc

The sample proportion is a point estimate of the population proportion. Therefore we need to convert the given percentage to a decimal fraction to find the best point estimate.
35/100 = 0.35
The best point estimate is 0.35.

Answer:  Option 'b' is correct.

Step-by-step explanation:

Since we have given that

Number of people showed in a recent poll = 1800

Percentage of people believe gas prices will go down = 35%

So, best point estimate of the proportion of all people who believe gas prices will go down is given by

\(\frac{35}{100}\\\\=0.35\)

and Number of people who believe gas prices will go down is given by

\(0.35\times 1800\\\\=630\)

Hence, Option 'b' is correct.

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