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By adding Michael Jordan's $30 million the shape of the curve would no longer be bell-shaped but would become positively skewed. Furthermore, the distribution of the annual salaries would no longer be symmetrical as it would be incorporating the $30 million which is an outlier as NBA players do not make any where near this amount annually. The best measure of central tendency for this scenario would be to use median as it is not affected by extremely large values.
Although the two samples have an identica winning percentage,one is significant and the other is not. Explain why the two samples lead to different conclusions.
Jerry however is unsure the 0.6 probability of a favorable marketing research study is correct. How sensitive is Jerry's decision to this probability value ? How far can this probability value deviate from 0.6 without causing Jerry to change his d..
Suppose that these 49 patients constitute the random sample, and that population is normally distributed with standard deviation of 10. Calculate the 95% confidence interval for heartbeats per minutes in population.
Students are the University of New Harmony received 10, 000 course grades last semester. The table below breaks down these grades by which school of the university taught the course.
If the data were collected for a sample of 50 households rather than 100, develop an 85% confidence interval estimate of the population mean annual amount spent, assuming the population has a normal probability distribution.
Determine the approximate probability that in random sample of 1000 individuals who have purchased fries at McDonald's.
ICR questioned 1000 American male and female heads of household regarding their house cleaning attitudes. The survey has a margin of error of plus or minus 5%.
When would you use a one- or two-sample hypothesis test? Provide examples. What are the differences between dependent and independent samples? Provide examples.
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0?
State the Null Hypothesis and the Alternative Hypothesis. Determine the test statistic. Determine the P-value
Find the value of k that makes f(x; y) a valid probability distribution.
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