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A quality control engineer selects a part to be tested. The part is then declared acceptable, repairable, or scrapped. Then another part is tested. List all the possible outcomed of this experiment.
San francisco also reported that a scientific polling organization found that new zealanders favor the law by a margin of 56.4% to 39.3%. Explain why the two polls can give such widely differing results and which poll is likely to be more reliable..
A random sample is selected from a normal population. The population mean is 60 and the standard deviation is 15. after treatment the sample mean is 65. the sample size is 25.
What are the mean and the standard deviation of the number of firms that purchase a Unix machine from Sun Microsystems?
For an examination in which grades of 70 and 88 correspond to standard scores of -0.6 and 1.4 respectively. Find:
Find out the upper and lower bounds on average life expectancy of the Canadian women such that at least 90% of all population is included.
The times required to assemble a product are normally distributed with a mean of 47.5 minutes and a standard deviation equal to 8.5 minutes. What percent of the assembly workers require: (do not include % symbol)
When using SPSS to perform a 2 independent sample t-test, the P-Value was .136...with alpha set to .05. I have to decide to accept or reject the null hypothesis.
You will be graded on accuracy, completeness (addressing each point above), and effectiveness (utility, ease of reading).
Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is t..
Find the P-value that would be used to determine if the percentage of customers who prefer mint chocolate chip ice has increased at a 5% level of significance.
Two different simple random samples are drawn from two different populations. The first sample consists of 20 people, with 10 having a common attribute.
Suppose that you wish to perform a nonparametric test for a difference among the medians of three or more independent populations. Which of these tests would be appropriate?
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