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Are females more likely to develop high blood pressure than males?
For this research question:
Clearly identify the independent and dependent variables you would study.
Determine whether a one-tail or two-tail test is most appropriate and explain why.
Generate a testable null statistical hypothesis and an alternative statistical hypothesis.
Select an alpha level of .05, .01, or .001 and justify your choice.
Jim Sellers is thinking about producing a new type of electric razor for men. If the market were favorable, he would get a return of $100,000, but if the market for this new type of razor were unfavorable
Indicate your hypotheses, decision rule, statistical decision and management conclusion using the critical value and then find the p-value and state your decision rule, statistical decision and management conclusion using this method.
A computer diskette manufacturer is concerned that some diskettes have bad sectors that would cause a diskette to hold less information than it was intended to hold.
The population of IQ scores forms a normal distribution with mean of μ = 100 and a standard deviation of σ = 15. What is the probability of obtaining a sample mean greater than M = 105,
Which of the following statements is not true of the null hypothesis? A) It is your theory B) It is what you would expect by chance alone C) Assumes things to be equal D) None of the above
Jeweller desires to know how many of each item to make each week to maximize profit. Create the integer programming model for this problem (written in format similar to way Problems 1 and 2 were presented).
Parameter of interest is mean score in this population. Sample is an SRS of size n = 4 drawn from population. Determine the mean of 10 scores in the population.
In Texas, 1991, the weights of babies, the mean birth weight for all babies is 3369 grams, with a standard deviation of 581 grams, (454 grams = 1 pound). Looking at a baby that weighed 16.1 lbs at birth: What would his Z-score be when compared to ..
Use a 0.05 significance level to test the claim that the mean speed of all cars is greater than the posted speed limit of 70 mph. Based on the above situation compute the value of the test statistic.
A group of students collected data at the Cedar Point amusement park and reported that the "wait time" to ride the "Top Thrill Dragster" roller coaster is consistently distributed within a range of 40 minutes to 90 minutes.
Get a test statistic and p -value. Interpret results at α = .01.
In a manufacturing process, the diameter of the steel rods is the product characteristic. A random sample of 25 steel rods is taken and sample mean is 8.88 cm.
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