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What type of test is described below and can you provide the null and alternate hypothesis? Using an old manufacturing process, the standard deviation of the amount of wine put in a bottle was 0.23 ounces. With new equipment, the quality control manager believes the standard deviation has decreased.
With this information, by constructing a 2 by 2 table, compute the predicative value positive and predictive value negative of the ELA in hypothetical population of 1000000 blood donors.
What was the critical F value chosen?
To avoid the problem of not having access to Tables of F distribution with values given for the lower tail, the numerator of the test statistic should be the one with:
In forestry there appears to be a correlation between the diameter of a tree at breast height and the totol height of the tree. For the following sample of ten white spruces first construct a scatter plot then find the correlation (r) between heig..
Department decided to conduct the test at the 0.05 level of significance whether the modification actually increased the life of the AAA battery. What was their decision rule?
Income level of the industrial salespeople and their employment status. Be sure to state the critical value, the value of the Chi-square test statistic, and your decision (accept/reject).
Estimate and interpret the p-value of the calculated test statistic.
Also, 72 percent of the managers have MBA degrees. Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
A mean of 45 months and a standard deviation of 8 months. if a random sample of 600 batteries is selected, how many batteries would weigh last more than 48 months?
What are the 3 measures of dispersion/variation in a dataset? How do you calculate each of these 3 measures?
Consider the following two binomial experiments. In a binomial experiment consisting of six trials, how many outcomes have exactly one success and what are these outcomes?
For every additional hour spent studying for the exam you would expect a grade improvement of 60.2 points
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