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Historically, the average score for QM520 test #1 has been 86 with a standard deviation of 3. If there are 17 students in the class, this semester, compute the z score that allows computing the probability associated with the sample mean score being less that 67.
If a teacher provides me with a dataset to open in spss and ask for me to provide a list of the variables in a work document, how do I find the variable list in spss?
A sample of final exam scores is normally distributed with a mean equal to 20 and a variance equal to 25.
Carry out test of independence to find out whether employee health insurance coverage is independent of size of company. Use α = 0.05 level of significance.
water vapor initially at 3.0 mpa and 300oc state 1 is contained within a piston-cylinder assembly. the water is cooled
The contractor took 27 water samples and found an average pH of 6.3 with a sample standard deviation of 1.86. What is the test statistic for this sample?
A random sample of 20 single men was asked if they would welcome a woman taking the initiative in asking for a date. What is the probability that
What is the null hypothesis for this hypothesis test? What is the alternate hypothesis for this hypothesis test?
probability values based on normal distribution.the old exit exam followed a normal distribution with micro 500 and
Assume the null hypothesis states that the mean is equal to 88. The alternative hypothesis states that the mean is not equal to 88.
Every card is drawn independently with all three cards having equal probability. They continue to take turns until somebody wins. Calculate the probability of Alice winning, the probability of Bob winning, and the probability of Claire winning.
A sports researcher gave a standard written test of eating habits to 12 randomly selected professionals, four each from baseball, football, and basketball. The results were as follows:
At Litchfield College of Nursing, 89% of incoming freshmen nursing students are female and 11% are male.
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