Mathematics, 25.02.2021 17:50 maelonramirez
An environmental research firm wants to estimate the proportion of cars in Jackson County, Missouri that would be considered SUVs. Using the county's vehicle registration records they randomly select 220 vehicles. From that list they determined that 90 of them were SUVs. The sample proportion is 0.409, and the 95% confidence interval for the proportion of cars in Jackson County that are SUVs is (0.344, 0.474).
Select all of the following which would produce a confidence interval with a larger margin of error.
If you created a 90% confidence interval instead of the 95% confidence interval the margin of error would?Answer 1
If you had a random sample of 98 vehicles instead of 220 the margin of error would?Answer 2
If you created a 99% confidence interval instead of the 95% confidence interval the margin of error would?
Answer
If you had a random sample of 320 vehicles instead of 220 the margin of error would?
Answers: 2
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Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about maxβs data must be true? a. the median of maxβs data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
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The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96
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Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?
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An environmental research firm wants to estimate the proportion of cars in Jackson County, Missouri...
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