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A TV show, Lindsay and Tobias, recently had a share of 10, meaning that among the TV sets in use, 10% were tuned to that show. Assume that an advertiser wants to verify that 10% share value by conducting its own survey, and a pilot survey begins with 19 households having TV sets in use at the time of a Lindsay and Tobias broadcast.
Find the probability that none of the households are tuned to Lindsay and Tobias.
(Round to three decimal places as needed.)
Find the probability that at least one household is tuned to Lindsay and Tobias.
(Do not round until the final answer. Then round to three decimal places.)
Find the probability that at most one household is tuned to Lindsay and Tobias.
What is the probability that a U.S. user who downloads music, selected at random, obtained it from either the United States or Canada.
Telephone calls arrive at a switchboard in a Poisson process at the rate of 2 per minute. A random one-tenth of the calls are long distance.
The Federal Government recently granted funds for a special program designed to reduce crime in high-crime areas. A study of the results of the program in eight high-crime areas of Miami, Florida, yielded the following results.
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop. (b) Check the normality assumption. (c) Try the Very Quick Rule.
the total blood cholesterol concentrations in mgdl are shown below for a random sample of six people. in the table
about 34 of americans have type a blood. a blood drive gets 140 donors. what is the probability that at least 40 of
This result prompts a test administrator to claim that standard deviation for eighth graders on examination is less than 29.At a = 0.10, is there sufficient evidence to support administrator's claim?
a bank manager wishes to provide prompt service for customers at the banks drive-up window. the bank currently can
recently the management team at wilson noticed that there were differences in output levels across the various plants.
An article in Parenting magazine reported that 60% of Americans needed a vacation after visiting their families for the holidays. Suppose this is the true proportion of Americans who feel this way. A random sample of 100 Americans is taken.
in a community 40 of the population is smoker. i randomly choose 60 residents from that community and ask if each of
Perform a test to determine whether there is sufficient evidence to support a claim of a linear correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance level alpha.
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