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Forecasting: The sales data for the lone star Sports Apparel Company for the last 12 years are as follows:
2001 $400,000
2002 440,000
2003 480,000
2004 518,000
2005 554,000
2006 587,000
2007 617,000
2008 654,000
2009 700,000
2010 756,000
2011 824,000
2012 906,000
Questions:
a. What is the 2001- 2012 compound growth rate?
b. Using the result obtained in part a, what is your 2013 projections?
c. If you were to make your own projections, what would you forecast?
For a normal distribution, the probability of randomly selecting a z-score greater than z = -2.00 is p = .0228.
For a sample of 138 independent observations from a normal distribution of unknown μ and variance σ 2 = 2.6, the sample mean is 52.3. What is the width of the 95% confidence interval for μ?
Evaluate z statistic for the Wilcoxon rank sum test, standard deviation for the Wilcoxon rank sum test and P-value for the Wilcoxon rank sum test
The mathematics SAT scores of the seven students in a mathematics seminar are 533, 553, 578, 586, 619, 626, and 633. Suppose that the student with the score of 533 drops the seminar and is replaced by a student with a score of 765.
To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measure each child's attention span before and after taking the drug.
If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?
You take a random sample and perform a hypothesis test, getting a p-value of 0.2578. What is the appropriate conclusion? Conclude at the 5% level of significance.
Develop a 90% confidence interval for the true mean weight. What sample size would be necessary to estimate the true weight with an error of +/- 0.03 grams with 90% confidence?
An element E has a constant failure rate λ and a reliability at time t of R(t)=p, if p=0.5 and 0.9, what is the effect on Rs(t), basic reliability, serial Mean Time Between Failure, hs(t), MTBFs if additional elements are added to the baseline sys..
Test the hypothesis that no difference exists between the groups at α = .05 and perform and report all related tests and statistics.
Burnwood Tech plans to issue some $60 par preferred stock with a 6% dividend. A similar stock is selling on the market for $70. Burnwood must pay flotation costs of 5% of the issue price.
Which is the probability that the median of the sample is between $17 and $20?
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