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Results from previous studies showed 79% of all high school seniors from a certain city plan to attend college after graduation. A random sample of 200 high school seniors from this city reveals that 162 plan to attend college. Does this indicate that the percentage has increased from that of previous studies? Test at the 5% level of significance.
State the null and alternative hypotheses.
A.H0: p ≤ .79, H1: p > .79 B.H0: p = .79, H1: p ≠ .79 C.H0: = .79, H1: > .79 D.H0: μ = .79, H1: μ > .79
Find the dollar weighted (simple interest) yield rate and the time weighted yield of the account for this year.
A recent study by Ohio State University (March 5, 2008) suggests that students with cell phones may take more risks than students that do not have cell phones.
Little Kona is a small coffee corporation that is planning entering a market dominated through Big Brew. Each corporation's profit depends on whether Little Kona enters and whether Big Brew sets a high price or a low price.
If an applicant to a university has taken test A and scored 910 and another student has taken test B and scored 33, compare these students score using Z-values. Which one has a higher relative score?
Advanced Micro Devices declared a 10 percent price raise for certain advanced microprocessors, used primarily in video games. The processors will sell for about $1,000 compared to Intel's $950 price.
Suppose that you do a test for H0: μ = 6 against HA: μ &neq; 6 you obtain a sample mean of 6.5 and the test gives you a a p-value of 6%. We want to connect the p-value to the confidence interval for the mean.
Suppose two companies, A and B, that produce super computers. Each can manufacture the next generation super computer for math or for chip research.
A random sample of 100 computers showed a mean of 115 gigabytes used with a standard deviation of 20 gigabytes. What is the standard error of the mean.
Ken and Gerard are roommates for a weekend and have succeeded in making their living quarters cluttered in very little time.
For the time-frame of this study, once a market has reached a higher category, it won't fall back to a lower category. What is the probability that Logistics will stop providing service to an Intermediate market before becoming a High market?
A manufacturer of a new, less expensive type of light bulb claims that this product is very well made and even more reliable than the higher priced competitive light bulbs.
The market for olive oil in new York City is controlled by 2-families, Sopranos and Contraltos. Both families will ruthlessly eliminate any other family that attempts to enter New York City olive oil market.
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