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The show represents Excel output for an ANOVA analysis with σ = 0.05.
A study conducted on the annual incomes of Teachers in the state of California in metropolitan areas having a population less than 100,000 and in metropolitan areas having a population over 500,000.
At the 0.01 level of significance, is the mean grade of the female students higher than that of males.
Production costs for the large number of previous orders of varying sizes for product are in file production.xls. An analyst evaluates the production cost per unit in each order and averages these t
The Product Design & Marketing Departments have agreed to consider changing the material used for the handle of an ax produced by their firm for consumer use. The material currently used is hick
In order to evaluate the means of two populations, independent random samples of 484 observations are selected from each population, with the following results.
Compute using SPSS the association between smoking and esophageal cancer and then by using SPSS the association between dichotomized smoking variable and esophageal cancer using SPSS.
Test the claim that the two samples described below come from populations with the same mean. Presume that the samples are independent simple random samples. Utilize a significance level of 0.04.
Two independent samples have been selected, 92 observations from population 1 and 72 observations from population 2. The sample means have been calculated to be ~x= 6.9 and x2 = 11.4.
A paired difference experiment yielded and pairs of observations. In each case described below, what is the rejection region for testing H0: mean= 6 against Ha: mean >6. Utilize standard deviation
Compute using SPSS association between smoking and esophageal cancer and then by using SPSS association between the dichotomized smoking variable and esophageal cancer by using SPSS.
Conduct a paired difference test described above. The test statistic is?
A manager would like to know relationship between billable hours spent on the job the total cost of job including materials.The file jobs.xls contains the data. Summarize the relationship.
Make use of the traditional method with α = 0.05 to test the claim that the weights of statistic textbooks vary more than the weights of text in general: σ = 0.65kg. A simple random samp
A Study was conducted with α = 0.01 to conclude if there is significant linear correlation between the number of credits hours earned at the same time of taking Statistic 101 and grade in the
Examine the sample set of statistics using the statistical test of my choosing. The data corresponds to the group of clients suffering with the mental illness.
Find the proportion of the total variation that can't explain by the linear relationship between the two variable. (Round to the nearest whole percent.)
Find out the critical values X2/L and X2/R for a 90% confidence level and n=19. Utilize a Chi-Square Distribution table.
A human resources director, on learning regarding the regression effet, decides to hire people who have been fired by their previous employer for the poor performance.
Do one of the following as appropriate" find the critical value Zα/2, find out the critical value tα/2, or state that neither the normal nor the t distribution applies.
Employ the expected collision claim amount to find out the collision insurance premium that would let the company to break even on collision portion of policy.
Assume that you bought (randomly select) three laptops from the production run of 10 laptops. Of 10 laptops, 9 are destined to last at least two years without needing the single repair.
Find out the mean and standard deviation for number of actual voters in groups of 1002. In survey of 1002 people, 701 said that they voted in last presidential election (based upon data from ICR Rese
Supposing that 50% of all people are opposed, determine the probability of getting at least 89% opposed in the survey of 1012 randomly chosen people.
In the recent years, scores on standarized test for high school students with the 3.5 to 4.0 grade point average were normally distributed, with the mean of 39.9 and standard deviation of 1.8.