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Give an example of a survey that is poorly designed because it contains one or more of the following kinds of bias. And then, indicate how the survey could be corrected:
voluntary response sample
convenience sample
nonresponse bias
bias in wording of questions
confounding
undercoverage
response bias
the weights of a fish in a certain pond that is regularly stocked are considered to be normally distributed with a mean
1 a batch of 500 containers for fronzen orange juice contains five that are defective. two are selected at random
Otherwise, no ordering will take place. Find the steady-state probabilities of the state of this Markov chain?
What is the relationship between the variance and the standard deviation?
micron technology has sales offices located in four cities dallas seattle boston and los angeles. an analysis of the
Suppose a one tailed t test is being applied to find out if the population mean is less than $120. The level of significance selected is 0.01 and 26 bank accounts were sampled.
Find the probability using the Poisson distribution.
Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective.
SAT Math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 116. a) what percentage of SAT scores are between 399 and 631?
sam will read either one chapter of his probability book or one chapter of his history book. if the number of
Draw to scale a time series graph representing and using the ratio-to-moving-average method, determine the quarterly seasonal indices.
A player of a video game is confronted with a series of opponents and has an 80% probability of defeating each one. Success with any opponent is independent of previous encounters. The player continues to confront opponents until defeated.
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