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A study is to be conducted on the proportion of U.S. citizens who believe the minimum wage should be raised. What is the minimum number of people that should be included in the study if we want to estimate the true proportion with a margin of error of 0.03 and a 95% level of confidence?
describe the characteristics of the f distribution. provide examples.what are we testing when we test for two
When writing about the probability that it will rain in Boston on July 4 of next year, a newspaper reporter states that the probability is ½, because either it will rain or it will not.
find the critical value taalpha2 that corresponds to a confidence level of 95 and a sample size of
The mean of the population was computed to be 126.9 grams and the standard deviation was 1.20 grams. Which food results in a more uniform weight?
What probability distribution does n1 alone have? Specify the values of the sample size index and parameter for that distribution.
let x1 and x2 be observations of a random sample size of n2 from a distribution with p.m.f. fx x6 x123. then find the
What is the importance of hypothesis testing for independence of variables using two-way tables? Is there an example of this for a better understanding?
the weight of coffee in a can is normally distributed with a mean of 16.1 oz and standard deviation of 0.5 oz.a
the american restaurant association collected information on the number of meals eaten outside the home per week by
A national Retail Foundation survey found housholds intended to spend an average of $932 during the December holiday season. Assume that the survey included 850 households and that the standard deviation of the sample is $215.
At a national seashore, the number of swimmers per day who require lifeguard assistance averages 4.1, on any day when 7 or more swimmers are assisted, the lifeguards receive a $20 bonus for extra effort.
It's your first day at the Jedi Temple, working as a lightsaber manufacturer. Your first task on the job is to analyze the control and capability of this process. Your main concern is to see if the lightsabers fit within the required length specif..
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