Mathematics, 10.03.2021 01:10 Brad876
A 2017 Marist and Yahoo News survey of 1,122 randomly selected US adults found that 52% had tried marijuana. Based on the survey results, the 95% confidence interval for p, the proportion of adults who have tried marijuana is (.490, .549). An organization for the legalization of marijuana puts out literature that states that over half of US adults have tried marijuana. Which is the best interpretation of whether the interval supports this claim?
a.) Since the interval includes numbers greater than 50% as plausible values, the interval supports the organization’s claim.
b.) Since the interval’s point estimate is greater than 50%, the interval supports the organization’s claim.
c.) Since the interval is constructed using 95% confidence, we are 95% confident that the sample proportion is correct.
d.) Since the interval includes plausible values both below and above 50%, the interval does not support the organization’s claim.
e.) Since the majority of the interval is above 50%, the interval supports the organization’s claim.
Answers: 1
Mathematics, 21.06.2019 21:30
Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.
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Mathematics, 21.06.2019 21:40
The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?
Answers: 2
A 2017 Marist and Yahoo News survey of 1,122 randomly selected US adults found that 52% had tried ma...
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