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For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
4 digits to the right of the decimal
Q. To the right of 2.120
Q. To the left of 1.337
Q. To the left of -1.746
Q. To the right of 2.583
Q. Between -2.120 and 2.120
Q. Between -1.746 and 1.746
Determine how large a sample would be necessary to estimate the population proportion with a margin of error of .05 at 95% confidence.
Test the hypothesis that the annual income of corporate trainers in areas of more then 500,000 are significantly more than those in areas of less than 100,000. Use the 5% level of risk.
Identify the formal hypothesis testing process. Perform a hypothesis test of one proportion.
Formulate the null and alternative hypotheses for a hypothesis test. Identify the population and describe how to select a random sample for a hypothesis test. State in clear terms the conclusion that should be given if the null hypothesis is rejec..
At least 14 units of B and no more than 20 units of A must be used. Each unit of A weighs 5 kg and each unit of B weighs 10 kg. How many units of each type of raw material requires?
The annual precipitation amounts in certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches.
Test the claim that the actual amount of coke exceeds 12 ounces. (Note: You can use the value of $s$ as the value of $sigma$ for your hypothesis test).
Without using formulas, explain the meaning of (a) expected value of a random variable; (b) actuarial fairness; and (c) variance of a random variable.
If you increase in the equation, would it move the graph upward? Express your answer in terms of time, initial position, initial velocity, and acceleration.
Provide at least 1 example of how a real company has used each of the following multivariate techniques: factor analysis, multi-dimensional scaling, and cluster analysis.
In addition, the gender of the respondent is noted. After analyzing the results the following table of joint probabilities was produced: Find the probability that a customer who rates Windsor as excellent is a man. 0.45
Roll a balanced 8-sided dice and a balanced 6 sided die and add the spots on the up-faces. Call the sum X. What is the probability distribution of the random variable X.
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