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Suppose a basketball player is an excellent free throw shooter and makes 93% of his free throws. Assume that free throw shots are independent of one another. Suppose this player gets to shoot three free throws. Find the probability that he makes at least one of the three consecutive free throws.
In random, independent samples of 250 adults and 375 teenagers who watched a certain television show, 147 adults and 228 teens indicated that they liked the show.
The finished subassembly two must be inspected. A list of activities, their predecessors, and their durations is given in the following Table.
Set up the appropriate null and alternative hypothesis for testing whether the original sample overestimated the average executive director annual salary.
Discuss the concept of statistical significance, including your understanding of what it means, why it is important, and how it can be used.
Suppose that combined verbal and math SAT scores follow a normal distribution with mean 896 and standard deviation 174. Suppose further that Peter finds out that he scored in the top 3% of SAT scores. Determine how high Peter's score must have bee..
Formulate a linear program that can be used to determine the number of hours each graphic designer should be assigned to the project in order to minimize total cost. What is the total cost?
The Complaints Department of a popular used car dealer receives most complaints about the electrical system, particularly the starter.
In a standard test for reaction time, female candidates for flight school are found to have times that are normally distributed with a mean of 0.65 seconds and a standard deviation of 0.15 seconds.
Discuss how a t Test can be employed in hypothesis testing by the use of directional vs. nondirectional hypotheses. Discuss types of research where using the t statistic may be an appropriate alternative to using a z-score.
For what value of t will the null hypothesis not be rejected?
ABC Corporation has been using statistical process control for several months.
Setup the alternative hypothesis that will test the claim that the percentage of women preferring white wine is 25% higher than men.
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