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Question: According to the most recent Labor Department data, 10.5% of engineers (electrical, mechanical, civil, and industrial) were women. Suppose a random sample of 50 engineers is selected.
a. How likely is it that the random sample of 50 engineers will contain 8 or more women in these positions?
b. How likely is it that the random sample will contain fewer than 5 women in these positions?
c. If the random sample included 200 engineers, how would this change your answer to part b?
Conduct an analysis of variance test to determine whether there is any evidence that the mean weights of any two watchband types are different.
Based on a two-tailed 0.05 What do you conclude?
A 12 ounce bottle of beer has 355 ml. The Random Brewing Company sets its machinery so that the contents of a bottle is normally distributed with a mean of 355.5 ml and a standard deviation of 1 ml. (The contents of a bottle are also independent from..
the distance between flaws on a long cable is exponentially distributed with mean 12 m.a. find the probability that the
What type of relationship is proposed?- Graph the proposed relationship.- Identify the independent variable and the dependent variable in the statement of the hypothesis.
With a population standard deviation of 15. Use the 95% confidence interval. Approximately how many Kleenexes should go in the automobile glove compartment boxes?
Design a 95 percent confidence interval for the proportion of defectives in a large lot, if a sample of 200 showed 12 defectives.
assume that you plan to use a significance level of 0.05 to test the claim that p1 p2. use the given sample sizes and
What would happen if the forest service agent took another sample of 31 trees? Would the slope change? Would the intercept change? What about a third sample of 31 trees?
Analyze how the level of measurement and the distribution of the data influenced the type of graphical descriptions presented.
Stat 11 Spring 2011 - Homework 4. Using the sample given in (12) with Method 1a, how many people would you estimate are in the class
a statistics practitioner would like to estimate a population mean to within 50 units with 99 confidence given that the
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