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Q1) For Normal distribution X~N(3, 4). Use SPSS to make a normal probability table. In first column, input numbers from -6 to +12 in increment of 0.5, then compute cumulative probabilities for these numbers in second column. Then create a histogram illustrating data distribution. Using generated Normal probability table, determine probability of Pr(X<=5).
Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores
What is the probability of a fatal accident over a lifetime?
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem.
Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
What would that evaluation be and what is the margin of error?
Using the simple test of independence (described in the lecture), decide if the events high calorie and high fiber are independent or dependent. Show your work.
X is a continuous random variable uniformly distributed on [20, 45] that is, the end points c = 20 and d = 45.
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
What is the probability that all tree students pick a different card?
Which of the following(s) can be considered (a) variable(s)?
CASE STUDY: Are the Fish Safe to Eat? Assessing which Factors affect Mercury Levels in Fish in Maine Lakes.
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