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You arrive at a bus stop at 10 o'clock, knowing that the bus will arrive at some time uniformly distributed between 10:00 and 11:00.
a) What is the probability that you will have to wait longer than 10 minutes?
b) If at 10:20 the bus has not arrived, what is the probability that you will have to wait atleast an additional 10 minutes?
find the minimum sample size that should be chosen to assure that the proportion estimate p will be within the required
At a = 0.05, what is the test value?
The time in hours required for 40 individuals to complete their federal income tax returns. Using past years' data, the population standard deviation can be assumed known with σ=9 hours.
The true proportion of tall peas (based on a 3:1 phenotypic ratio) is 3/4 or p = 0.75. What is the probability that 5 are tall and 5 are dwarf.
A study shows that employees that begin their work day at 9:00 a.m. vary their times of arrival uniformly from 8:40 a.m. to 9:30 a.m. The probability that a randomly chosen employee reports to work between 9:00 and 9:10 is?
If the standard deviation of the process is unknown, another approach is to use the sample range as a measure of process variability. Calculate the control limits for the above process using the sample range.
Describe and perform the five-step hypothesis test process: set up the hypothesis, select a level of significance, establish the decision rule, calculate the test statistic, and draw conclusion.
a cardiologist has a device that measures prothrombin clotting times protimes of patients who are taking the blood
When using SPSS to perform a 2 independent sample t-test, the P-Value was .136...with alpha set to .05. I have to decide to accept or reject the null hypothesis.
a 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of
to calculate beta requires making a what if assumption about the true population parameter where the what-if value is
The sum of the squares error measures the variability in the measurements within the groups. Equal replication means that the same number of objects being observed are randomly selected from each population.
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