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The participants in a television quiz show are picked from a large pool of applicants with approximately 60% men and 40% women. X is a random variable that gives the number of females chosen when ten participants are picked randomly.
The random variable x, which is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length.
Out of 1000 people surveyed, 600 belonged to urban areas and rest to rural areas. Among 500 who visited other states , 400 belonged to urban areas. Test 5 % level of significance whether area and visiting other state are dependent.
Hypothesis test for difference between two population variances - compare the variation in the selling price of homes on the oceanfront with those one to three blocks from the ocean.
The State Department of education requires local school districts to keep records on all students within their district. Determine if the following items are categorical or numeric variables.
The KW water is provided to approximately 750,000 people, who are served through more than 362,000 accounts. All accounts are metered and billed monthly.
Standard deviation of 7. At 0.01 significance level, is there more variation in first population?
The diameters of a wooden dowel produced by a new machine are normally distributed with a mean of 0.55 inches and a standard deviation of 0.01 inches. What percent of the dowels will have a diameter less than 0.57?
Let X equal the number of "ones" if a fair dice is tossed two independent times by someone out in the hall. If X=x that person gives the player a bowl consisting of 10-3x red chips and 3x white chips.
Give critical test statistic and compute sample test statistic. Test null hypothesis at alpha level .01.
If a person were to be hit by lightning, they have a 33 percent chance of being killed. Find the odds that a person will be killed if struck by lightning.
Determine the most economical monthly shipping schedule. Provide a table showing the routes and total costs.
Identify the null and alternative hypothesis, test statistics, p-value or critical value(s), conclusion about the null hypotesis and final conclusion that address the original claim.
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