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Determining the minimum sample size. How large would the sample need to be to guarantee an error of no more than 3.4 on a 96 percent confidence interval for the mean of a population with the standard deviation of 19?
Statistics and Probability, Statistics
In a specific sample size of 100, what is the range within the groups average iron level would be considered ususal? Using the Central Limit Theorem and the Empirical Rule
The monthly sales demand for a new product is uncertain, but it is considered to be adequately described by a normal random variable with mean 50,000 units and variance 100,000,000. (a) A factory to manufacture the new p ...
Past data from a specialized lung cancer clinic show that 10% of patients entering the clinic have lung cancer. Data also shows 5% of the patients are smokers. Additionally, it is found that 7% of the patients are smoker ...
A researcher is planning to a silvicultural study using 3 different fertilizers on 3 adjacent plots. How many ways can the 3 plots be arranged if there are 18 fertilizers to choose from?
One-year Treasury bills currently earn 2.25 percent. You expected that one year from now, 1-year Treasury bill rates will increase to 2.75 percent and that two years from now, 1-year Treasury bill rates will increase to ...
How do you calculate true population proportion if your defective sample is too small? For example, if you have 50 and defect is 4. Please look below for more details
What is the sample size for studies with MOE of +/-3.5% and +/-2.8%?, with a confidence level of 95%, sample statistics of .50? Please show work.
How would I calculate this to get the probability. If a person bought 1 share of Google stock within the last year, what is the probability that the stock on that day closed at less than the mean for that year? Hint: You ...
Amy wants to deposit money each year for the next five years and each deposit to have $30,000 in real dollars currently and the inflation rate is 3% per year and the nominal interest rate is 9.18%. (Round off all answers ...
A political researcher wants to determine if there is an association between gender (male, female) and political party affiliation (Democrat, Republican, Independent). What type of statistical test should be used?
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