In a poll of registered voters nationwide, 43% of those polled blamed oil companies the most for the recent increase in gasoline prices. the margin of error at the 95% confidence level for this point estimate is 2.4%. construct a 95% confidence level for the population proportion who blame oil companies for the recent increase in gasoline prices.

Step-by-step explanation:

Given that in a  poll of registered voters​ nationwide, 43% of those polled blamed oil companies the most for the recent increase in gasoline prices

The margin of error at the​ 95% confidence level for this point estimate is​ 2.4%.

Confidence interval lower bound = 43-2.4% = 41.6%

Confidence interval upper bound = 43+2.4% = 45.4%

Hence confidence interval = (41.6%, 45.4%)

The length of the interval = 2 times margin of error = 4.8%

The mid value = 43%

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step-by-step explanation:

step-by-step explanation:

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