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1. When sampling is from a normal population with an unknown variance, is the sampling distribution of the sample mean normal? Explain.
2. When sampling is from a normal population with a known variance, what is the smallest sample size required for applying a normal distribution for the sample mean?
An explanatory variable in a simple regression is bimodal. If the simple regression has a large r2, then what sort of distribution would you expect for the response?
Analyze the data and explain which one would be the better medication for both a sore throat and a fever. If damage to the fuselage was far more common, explain why he made this recommendation.
the random sample shown below was selected from a normal distribution849546construct a 95 confidence interval for the
The first randomly selected drinker qualifies.- Three soft drink users will have to be interviewed to find the first Gatorade drinker.
let b and c be independent random variables uniformly distributed over 07 and 03 respectively. what is the probability
The U.S. Postal Service reports 95% of first-class mail within the same city is delivered within 2 days of the time of mailing. Six letters are randomly sent to different locations. What is the probability that all six arrive within 2 days
To meet the increasing demand for new software products, many systems development experts have adopted a prototyping methodology. The effects of prototyping on the system development life cycle (SDLC) was investigated in the Journal of Computer In..
Discuss the kinds of research that could be carried out as part of a marketing communications campaign, indicating when this research should be conducted.
an open-label study where participants are aware of the treatment they are taking is run to assess the time to pain
suppose that the random variable y is an observation from a normal distribution with unknown meannbspmu and variance
Using the appropriate statistical procedure on the SPSS, test the between group means for a significant difference.
What does the error of estimation tell us about the results of a study conducted using probability sampling?- What happens to the error of estimation as one's sample size increases?
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