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To find the test statistics using chi square method?
A professional bowler has been having trouble 'hitting the pocket' in order to get strikes . His average has been 205 with a standard deviation of 10 pins. If in his next 15 games his standard deviation is 14 -- test the belief that his game is more variable than in the past.
Use area = 0.025
What is the null and alternate hypothesis?
Find critical value and test statistic Use Chi squared method.
Define the rejection region. State the statistical decision.
Create a 99 percent confidence interval for mean daily intake of milk. You may suppose daily intake amounts are usually distributed.
When the names of all the students at Omega University were dropped to a fishbowl, they would include:
Find the probability that in a given month:
Find the probability that a randomly selected employee earns less than $5.43.
Examined the effect of body position on blood pressure
Let S = {c, h, j, q, t, y} be a sample space of an experiment and let E = {c, h}, F = {c, q, y}, and G = {h, j, t} be events of this experiment. (Enter your answers using roster notation. Enter Ø for the empty set.)
In ANOVA, which of the following is not affected by whether or not the population means are equal?
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
What is the probability of this actually happening?
The probability that the daily demand at this store is at least one and at most three is:
If a single test is run and indicates that oil is present, what is the revised probability that oil is actually present?
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