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What is the difference in using the two formulas below to determine the Critical T Value? When does one know which one to use? Would each produce a different result? Can you provide an example in excel so I can see the formula used?
formula: =TINV(alpha,degrees of freedom)
formula: =NORMSINV(alpha/2)
At the .01 signficance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
a coin is tossed until obtainning a head or tossing it up to three times whatever happens first. if x represent the
A sample of 60 children reveals that only 12 missed school during March. What can be said about the difference in absentee rates?
How many Corolla buyers must be surveyed if we want to be 95% confident that the sample percentage is within four percentage points of the true percent all Corolla buyers?
Suppose that the probability that a new medication will cause a bad side effect is 0.03. If this medication is given to 150 people, what is the probability that exactly three of them will experience a bad side effect.
Standard deviation of 1.8 years, and the distribution is approximately normal. if an employee is picked at random, what is the probability that the employee has worked at the store for over 10 years?
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
question acid rain has caused many lakes to become more acidic. a lake is considered nonacidic if the ph level is
In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.
for the high school outreach project that i direct i would like to know if we are having any impact on the high school
what is a measure of dispersion of random variable values about the expected
The objective function always includes all of the decision variables, but that is not necessarily true of the constraints. Explain the difference between the objective function and the constraints. Then, explain why a constraint need not refer to all..
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