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Consider the hypotheses shown below. Given that x=115?, σ=26?, n=43?, α=0.10?, complete parts a and b.
H0?:μ=125
H1?:μ≠125
a. What conclusion should be? drawn?
b. Determine the? p-value for this test.
a. The? z-test statistic is
What percent of sales representatives earn more than $42,000 per year?
A simple random sample of size n = 3 is drawn from a batch of ten product items. If three of the 10 items are defective, find the PMF and the CDF of the random.
Suppose you want to estimate the sample size for a multiple correlation analysis. There are five predictors in your study.
Let the probability of a decreasing employment be 0.6 and the probability of a positive economic trend 0.5. Further, assume that the probability of a decreasing employment given a negative economic trend is 0.7.
Suppose you, as manager of Tennessee Grilled Pork, will submit proposals for a small business loan and a city business grant to help fund the building of the new location you submitted to the management teams.
Use data to test independence of receiving/not-receiving aspirin and rates of stroke within 10 years. Show (i) assumptions, (ii) hypotheses, (iii) test statistic, (iv) p-value, (v) conclusion in the context of this study.
At the .01 significance level, is there a relationship between job pressure and age?
You can just switch on the heater of your swimming pool / sauna / living room etc. But if you want to be calculate what time you should switch it on
Martin Luther is most often labeled as one of history's greatest reformers. Evaluate his contribution to humanity and tell me if you feel he has earned.
Can the normal approximation to the binomial probability distribution be used?
Engineers hoped to base their decision on re- actions of 50 drivers, but time and budget constraints may force them to cut back to 20. How would this influence the power of the test? Describe.
What is the Pearson correlation coefficient and how strong is the relationship - How much of the variance in the relation between these two variables is unaccounted for?
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