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The time spent? (in days) waiting for a kidney transplant for people ages? 35-49 can be approximiated by the normal? distribution, as shown in the figure to the right.
u=1665
o=211.5
?(a) What waiting time represents the 90th ?percentile?
?(b) What waiting time represents the first? quartile?
a random sample of 625 sat scores has a mean of 1500. assume that sat scores have a population standard deviation of
use this information about the overhead reach distances of adult females mean 205.5 cm sd 8.6 cm and over head reach
Which bread type has the highest average demand? Develop a fequency distribution for each bread type. Develop a histogram for each bread type. Which bread type has the highest standard deviation in demand?
You would like to know what is the probability that that the bond price is between $960 and $1060. Calculate your answer and show all work
You have landed nine sales contracts with an average price of $3,782 and a standard deviation of $1,290. Identify a reasonable idealized population.
Use Levene's test to determine if the assumption of homogeneity of variances is valid. Give hypotheses, test statistic, p-value, decision and conclusion.
Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?
seventy percent of houshold say the would feel secure if they had 50000 in saving. you randomly select 8 houshold and
a) Find the range of the data set? (round to the nearest tenth) b) Change 46.5 to 69.6 and find the range of the new data set (round to the nearest tenth)
based on the u.s. bureau of justice data 16 of persons arrested are women. if 400 arrest cases are randomly selected
at a certain university the average attendance at basketball games has been 3100 spectators per game. due to the dismal
If a die is rolled four independent times, what is the probability of one four, two fives, and one six, given that at least one six is produced?
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