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A two-factor study with two levels of factor A and three levels of factor B uses a separate sample of n = 5 participants in each treatment condition. How many participants are needed for the entire study?
A) 5
B) 10
C) 25
D) 30
Find the probability that a random selection of 9 songs will have mean length of 186.30 seconds or less. Assume distribution of the lengths of the songs is normal.
Time it took then to change a water pump was 18 minutes. The SD of the sample was 3. Find the 99% of the interval of the true mean.
What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test. Under what conditions should you use the Wilcoxon sum rank test?
Consider a normal population with µ = 25 and σ = 7.0. (A) Calculate the standard score for a value x of 23.
pretest-posttest design and internal validity threats.answer the question either by writing the design name or by
Construct a 95% confidence interval for the population mean, μ. assume the population has a normal distribution. In a random sample of 26 computers.
Telephone interviews were conducted on a representative sample of 1,003 adults living in the United States. For this sample, 506 adults admitted that they have paid to download music
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
Past studies indicate that only 85% of booked passengers show up for their flight. Find the probability that if the airline books 150 persons for a 140-seat plane, not enough seats will be available.
max z 3x 9ysubject to 20x 32y 16004x 2y 240y 40x y 0at the optimal solution what is the amount of slack
the number of automobiles that arrive at a certain intersection per minute has a poisson distribution with a mean of 5.
What is the probability that the airline will not have enough seats for all the ticket holders who show for the flight? (Use 3 decimal places)
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