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A federal report indicated that 24% of children under age 6 live in poverty in Georgia, an increase in previous years. How large a sample is needed to estimate the true proportion of children within 2% with 99% confidence?
let xn1.32 the proportion and find the proportiona. propxlt2.85b. propxgt3c. prop1.33ltxlt5.3d.
A group of 20 sales associates agree to go through a week-long sales class to improve their productivity. The amount of their sales are computed for one month before and one month after the training course.
If he were to conduct a second study to reduce the maximum error of estimate to 6, about how many hard drives should he include in his new sample?
answer the following in 50 to 150 words each. provide citations for all the sources you use. what is racism? in what
A pair of dice is tossed once. Let X denote the sum of the face values, and let Y denote the absolute value of the difference between the face values.
He randomly samples 45 oil wells throughout the United States and determines the mean output to be 10.7 barrels per day with a standard deviation of 1.3 barrels. Test the researcher's claim at the .025 level of significance.
Linear Optimization.
the thickness of manufactured metal plates is the variable of interest. due to many factors such as slight variations
Are these results sufficient to conclude that the self-hypnosis has a significant effect? Assume that increasing and decreasing allergic reactions are equally likely if the training has no effect. Use an alpha of .05."
Find the 90% confidence interval for the variance and standard deviation of the ages of seniors at oak park college if a sample if 24 students has a standard deviation of 2.3 years.
odds makers try to predict which professional and college football teams will win and by how much the spread. if the
If random sample of 9 loads is selected for a weight check, determine the probability that mean weight of those loads is more than 40.60 tons.
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