Mathematics, 07.05.2020 03:03 courtlyn8
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: 1
Mathematics, 21.06.2019 19:30
Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?
Answers: 2
Mathematics, 22.06.2019 03:00
At the beginning of the year, adrian's savings account balance was \$28$28. each week, he deposits another \$15$15 into that account, and he doesn't spend any of his savings. is his savings account balance proportional to the number of weeks since the start of the year?
Answers: 1
Mathematics, 22.06.2019 03:00
Can you make 1000, using only eight 8’s? if you had your choice, would you rather have 5 million dollars, or 1 penny, doubled every day for a month?
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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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