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A random sample of 100 voters found that 44% were goint to vote for a certain candidate. Find the 99% limit for the population proportion of voters who will vote for that candidate.
a) 1.2% < p < 56.8
b) 32.7% < p < 55.3%
c) 34.3% < p < 53.7%
d) 37.7% < p < 50.4%
Obtain a test statistic and p -value. Interpret the results at α = .01.
Show that it satisfies the required condition for being a probability distribution.
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Recognize and describe potential threats (up to 3) to internal validity.
The first three digits of a university telphone exchange are 452. if all the sequences of the remaining four digits are equally likely, what is the probability that a randomly selected universtiy phone number contains seven distinct digits?
Give an example of two variables that probably have a significant linear correlation coefficient, but one variable does not necessarily cause the other.
If a woman purchases Super Cola, what is the probability that it is a diet soda?
Is there a method which is accepted across industries for determining the minimum size of valid sample? N>50 +(8m aka 8 times the number of independent variables)
M&M Confidence Interval regarding the count of each color of M&M contained in a "fun size" bag of M&Ms for hypothesis testing. Use the traditional hypothesis testing method,
Draw the decision tree and perform a decision tree analysis of Steeley Associates decision situation using expected monetary value and what is the value of the information provided by Bernard Consultants (EVSI)? Give a recommendation as to whether ..
Describe the following correlation. The students with the highest grades in written French were also the students with the highest grade in spoken French.
Let x1, ..., xn be a random sample from an exponential distribution, X ~ EXP(theta) a) If x(bar) = 17.9 with n = 50, then find a one-sided lower 95% confidence limit for theta.
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