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Question: Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250 surveyed, 98 reported owning a tablet. Using a 95% confidence level, compute a confidence interval estimate for the true proportion of people who own tablets.
Assume a sample of 400 American adults were taken. Show the sampling distribution of the proportion of adults who balance their checkbook at least once a month.
a researcher is interested in the effect of st. johns wort on memory. a group of 25 college students is selected to
(a) A random variable X is to measure the number of customers who use this drive-thru ATM in a 15- minute interval. What is the probability that between 8 and 10 customers, inclusive, use this ATM in a given 15-minute interval? (b) What is the pro..
the beer institue conducted a study with looking at beer purcheses per capita across states. some states buy more beer
a batch contains 34 bacteria cells. assume that 12 of the cells are not capable of cellular replication. six cells are
according to an fda research every fourth egg has salmonella bacteria. an inspector checked 4 eggs what is the
In conducting a survey of adults, a pollster claims that he randomly selected 50 subjects, 3 were men. Is this statistically significant?
real estates salesthe association of real estate agents for foreign properties areafp is a local body representing
Jim and Mike go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Mike will pay three days in a row is 0.125.
bob nale is the owner of nales quick fill. bob would like to estimate the mean number of gallons of gasoline sold to
the variance of a sample of 81 observations equals 64. the standard deviation of the sample equalschoose one answer.a.
Household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude? (Use (alpha) = 0.10.) z = ? P-value =?
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