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1. You conduct a hypothesis test and you observe values for the sample mean and sample standard deviation when n=25 that do not lead to the rejection of the null hypothesis (the p value is .0667). If you observe the same sample mean and standard deviation for a new sample n>25, the p-value will___
a. increase b. decrease c. may either increase or decrease d. None of the above
2. In a one way ANOVA where the IV has 5 levels (groups), there are 10,12, 14, 11, and 9 subjects in each group. The degrees of freedom within are_______.
A manager hopes to improve the sales figures for 10 employees by sending them to a motivational seminar. To test the effectiveness of this seminar
Given that alarm has just sounded, find out the probability that real emergency situation exists?
A salesman must select 2 of the first component and 3 of the second to take on a sales call. How many different systems can the salesman select?
Compute the Kappa statistic and its standard error regarding reproducibility of the diagnosis of dyspnea in the clinic.
A research study reports t(14) = 2.17. How many individuals participated in the study? Is this t statistic sufficient to reject the null hypothesis using a two-tailed test with alpha = 0.05?
How many solutions exist for a quadratic equation? How do we determine whether the solutions are real or complex? Translate the following into a quadratic equation, and solve it, showing your work:
Airplane Safety: Suppose that 62% of all adults think that airplanes would be safer places if pilots carried guns. An opinion poll plans to ask an SRS of 1009 adults about airplane safety.
suppose that in the setting of the previous exercise you are willing to settle for a margin of error of $1000. will the required sample size be larger or smaller?
Woodco manufactures tables and chairs. Each table and chair must be made entirely out of oak or entirely out of pine. A total of 150 board feet of oak and 210 board feet of pine are available.
A snack company distributes chips in bags labeled 6 ounces. The local Bureau of Weights and Measures randomly selects 50 bags of chips and obtains a sample mean of 5.9 ounces.
Automobiles arrive at the drive-through window at a post office at the rate of 4 every 10 minutes. The average service time is 2 minutes. the Poisson distribution is appropriate for the arrival rate and service times are exponentially distributed.
Write down the name of 4 parts of the regression equation.
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