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A researcher has completed a survey of 2,047 viewers in Geelong to determine which TV network they primarily watch on Monday from 7 pm to 8 pm. Below is the table:
Network (Number)
ABC (276)
Seven (452)
Nine (307)
Ten (241)
SBS (107)
None of the above (664)
Express all of your results to four decimal places (ie. 90.25% should be written as 0.9025 and 20.50% should be written as 0.2050)
For the following, find the probability that a randomly selected viewer assuming that no viewer watches more than one channel:
Revise the prior probabilities in light of the consultants track record - What is the posterior probability of good demand given that the consultant has indicated demand will be good?
pretest-posttest design and internal validity threats.answer the question either by writing the design name or by
Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
Speci?cally, we recall that to improve its safety record, the company began tracking the time in between recordable safety incidents. During the ?rst year of the pro- gram, the waiting time (in days) until the occurrence of a recordable safety in..
The noise level in a room is measured n times.- In terms of the true mean µ determine the PDF of the sample mean.
Tests of hypothesis for two populations. List one test statistic that could be used for comparing two populations with hypothesis testing. Can you think of an example where this could be used?
a) Set up the null and alternative hypotheses, and perform the hypothesis test. b) Does the jury selection system appear to be fair?
Define f (r) to be the smallest integer n such that for all regular Markov chains with r states, the nth power of the transition matrix has all entries positive. It has been shown,14 that f (r) =r2 - 2r + 2.
Assuming an approximately normal distribution of commuting times for those who work at the plant, construct and interpret the 90% and 95% confidence intervals for the mean.
using the company records for the past 500 working days the manager of a car dealership has summarised the number of
The following table describes the asset allocation of your portfolio with the corresponding return in percentage, X, and the proportion of that specific asset in the portfolio, P(X).
(a) Let Ni be the number of consecutive days during which component I is responsible for the functioning of the system, for i = 1,2. What is the probability distribution of ?
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