Mathematics, 02.12.2019 22:31 twalalgreen26
The residential energy consumption survey found in 2001 that 47% of american household had internet access. a market survey organization repeated this study in a certain town with 25,000 households, using a simple random sample of 500 households: 239 of the same households had internet access.
a) the percentage of households in the town with internet access is estimated at ; this is likely to be off by or so.
b) if possible, find a 95%-confidence interval for the percentage of all 25,000 households with internet access. if this is not possible, explain why or why not.
Answers: 1
Mathematics, 21.06.2019 20:30
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 max’s data must be true? a) the median of max’s 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.
Answers: 2
Mathematics, 21.06.2019 21:10
Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?
Answers: 2
Mathematics, 21.06.2019 21:30
Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?
Answers: 3
The residential energy consumption survey found in 2001 that 47% of american household had internet...
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