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Meagan Dubean manages a portfolio of 200 common stocks. Her staff classified the portfolio stocks by 'industry sector' and 'investment objective.
Investment Industry SectorObjective Electronics Airlines Healthcare TotalGrowth 100 10 40 150Income 20 20 10 50Total 120 30 50 200
If a stock is selected randomly from Meagan's portfolio, P (Healthcare ∪ Electronics) = ________ .
A) 0.25B) 0.85C) 0.60D) 0.75E) 0.90
If x is a binomial random variable with n=8 and p=0.6, what is the probability that x is equal to 4?
A) 0.500B) 0.005C) 0.124D) 0.232E) 0.578
A sample of 93 IQ scores was randomly selected from a certain population. At the 0.03 level of significance, test the hypothesis that the population has a mean IQ of 105.
What is the probability that at most five cases of E. coli per 100,000 are reported in California this year?
State one referenced hypothesis including the three variables (FA as an IV, age as the covariate and RS as the DV)
In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health." PepsiCo's response included a new "Smart Spot" symbol on its products that meet certain nutrition criteria
What is the probability that the person thinks that "Made in America" ads boost sales and uses social media online?
Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales.
Select an industry with which you are familiar. Predict how future technology will inform, support, and potentially hinder productivity, culture, and work satisfaction within an organization in the industry.
A pie chart shows the market shares of cola products. The "slice" for Pepsi-Cola has a central angle of 90 degrees. What is its market share.
A survey found that 85% of women in a given city enjoy shopping online. Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
Explain how you can determine n3 from knowing n1 and n2. Thus, the multinomial distribution of (n1, n2, n3) is actually two-dimensional.
The test statistics in a right tailed test is z= 2.50. Also use a .05 significance level and state the conclusion about the null hypothesis (reject null hypothesis or fail to reject the null hypothsis)
P(A 1 )= .20, P(A 2 ), and P(A 3 )= .40. P(B 1 I A 1 ) = .25. P(B 1 I A 2 ) = .05. P(B 1 I A 3 )=.10. Use Bayes' theorem to determine P(A 3 I B 1 )
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