Mathematics, 13.04.2021 04:00 vanessagomezcx
2. A marketing firm is trying to estimate the proportion of potential car buyers that would consider
purchasing a hybrid vehicle
a. The firm would like their pilot study to have a margin of error that is no more than 4%. How many
people should be in the pilot study in order to meet this goal at the 95% confidence level?
In a sample of 600 potential car buyers, 376 indicated that they would consider purchasing a hybrid
gas/electric powered car.
b. What is the point estimate for the proportion of potential car buyers that would consider buying a
hybrid vehicle? Calculate this value.
c. Find the 95% confidence interval for the true population proportion of potential car buyers that
would consider purchasing a hybrid vehicle.
d. Name two ways we could reduce the margin of error (Hint: think about the sample size n and the
confidence level)
Answers: 3
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What is the simplified form of square root of 400 to the 100th power ?
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There are 40 girls and 32 boys who want to participate in 6th grade intramurals. if each team must have the same number of girls and the same number of boys, what is the greatest number of teams that can participate in intramurals? how many girls and boys will be on each team?
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2. A marketing firm is trying to estimate the proportion of potential car buyers that would consider...
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