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A fast food outlet claims that the mean waiting time in line is less than 3.7 minutes. A random sample of 20 customers has a mean of 3.5 minutes with a standard deviation of 0.8 minute. if a = 0.05, test the fast food outlet's claim using P- values.
compare and contrast the mean the median and the mode. which statistic is not as beneficial for extreme scores and
Sample standard deviation s=4.8. what is a point estimate off the difference between mean annual consumption in Webster City and the national mean?
some laboratory furnace have small glass windows so that samples may be observed. one problem associated with such
Over the past few years the percentage of students who leave Lakeland College at the endof the first year has increased. Last year Lakeland started a voluntary one-week orientationprogram to help first-year students adjust to campus life.
The average demand for carpet from the stores that purchase from the distributor is 4500 yards per month, with a standard deviation of 900 yards. what is the probability that a customer's order will not be met during a month?
Populate the selected graph/frequency chart with fictitious data. Did your selected graph/frequency chart effectively portray the data?
number of products with errors within a day is distributed as......x............ 0........... 1........... 2......... 3
prices for regular unleaded gasoline can vary widely from day to day and location to location. these data were obtained
A survey was mailed to a total of 400 students; 100 were randomly selected from each of the freshman, sophomore, junior and senior classes last semester. What sampling method was used?
realturf is considering purchasing an automatic sprinkler system for its sod farm by borrowing the entire 35000
a psychologist studied the effect of frequent testing on perception of course material. in one of the professors
A fastener manufacturing company uses a chi-square goodness of fit test to determine if a population of all lengths of ¼ inch bolts it manufactures is distributed according to a normal distribution.
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