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The table below shows five baskets containing different quantities of oranges.
(Baskets) Number of oranges (1) 30 (2) 18 (3) 30 (4) 33 (5) 36
(a) List all samples of size 2, and compute the mean of each sample.
(b) Compute the mean of the distribution of the sample mean and the population mean. Compare the two values.
(c) Compare the dispersion in the population with that of the sample mean.
If the data produce a t statistic of t = 2.50, then which of the following is the correct decision for a two-tailed hypothesis test?
A game company that manufactures a dart game that dispenses tickets has been asked to put a business plan together for a customer who wishes to buy the game.
Compute the two groups using Paired sample t-test. Compute which modification reduced the number of traffic accidents
determine whether each of the distributions given below represents a probability distribution. justify your
You are the designer for your company's web site. You have data to indicate that the mean download time for the homepage is 5.8 seconds and that the standard deviation of download time is 2.1 seconds.
An election poll reported that a candidate has an approval rating of 54% with a margin of error of 4%. Construct a confidence interval for proportion of adults who approve of the candidate.
In analyzing two independent small samples you notice that the standard deviation for both samples are the same. How does this affect the S2p (the pooled variance)? Explain your answer.
How do the graphical and computer-based methods of solving LP problems differ? In what ways are they the same? Under what circumstances would you prefer to use the graphical approach?
Which statistical analysis technique should be used? What is the null hypothesis? Can an analysis be performed? Why or why not?
You own a small tea company, Sweet Leaf, NASDQ ticker symbol LEAF. You are looking at marketing costs versus benefits. Your production manager says it doesn't matter which tea you produce
From an inventory of 48 cars being shipped to local automobile makers, 12 have defective radios installed. What is the probability that one particular dealership receiving 8 cars will find 2 radios being defective? Make assumptions if necessary.
Three children living, has assets of $156,000, has an index of health status of 141, and has 2.5 social activities a week on the average?
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