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How is it what you are learning in QMB 6357 (Statistics Probability) about statistics and Excel relevant to your work? What has been the most valuable skill you've learned and why? in your answer, provide specific instances of when you think you might apply what you have learned in the work environment.
Is it reasonable to conclude that the distribution is normally distributed with a mean of $10 and a standard deviation of $2? Use the .05 significance level.
A much larger sample would be needed to estimate the proportion of the U.S. Army's 2.4 million active duty and reserve personnel who approved the repeal than would be needed to estimate the proportion of the Marine Corp's 200,000 personnel who fel..
Examine the data and determine if the distribution of IQ scores could be normal. You should confirm or reject normality by means of a visual inspection of the shape of the distribution.
Would this indicate that the actual proportion of stopped drivers given tickets is not equal to .88? Use a 1% significance level.
What are the limits of the 99% prediction interval of the daily sales in dollars of an individual grocery store that has spent $3000 on advertising expenditures?
The average stock price for companies making up the S&P 500 is $30, and the standard deviation is $8.20. Assume the stock prices are normally distributed.
Random sample of 100 people yielded following data on number of tissues utilized in a cold: x-bar = 38, s = 20. By using sample information provided, compute the value of test statistic for the relevant hypothesis test.
The manager of a local bank wants to estimate the average amount held in checking accounts by the customers. A random sample of 30 customers is selected, and the results indicate a sample average of $4,750 and a sample standard deviation of $1,200..
Previous studies have indicated the standard deviation of annual earnings for college students is $850. How large a sample would need to be taken to estimate the mean for college students' annual earnings to within $200 with 99% confidence?
Has there been a significant decrease in the proportion of students who change their major after the first year in this program? Test at the .05 level of significance.
What is the appropriate set of hypotheses to test such that a possible outcome of the test would indicate;
Give the formula for the proper statistic to use, and also the p-value and An experiment was conducted to compare the weights of the combs of roosters fed two different vitamin-supplemented diets
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