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If the critical values for a statistical test are -1.96 and 1.96, determine if you would reject or fail to reject the null hypothesis in each of the following cases: (a) z=1.06 (b) z=2.06 (c) A z score beyond which 7% of the data fall in each tail.
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
What is the probability of making a Type II error if the population mean is 24,000 miles?
Discuss the concept of statistical significance, including your understanding of what it means, why it is important, and how it can be used.
What is the appropriate procedure to test for a significant in different means between the 2 age groups. What is the p-value corresponding to your this answer and compute a 95% CI for the difference in means between the two groups.
A random sample of five observations from the first sample resulted in a standard deviation of (12). A random sample of seven observations from the second sample gave a standard deviation of (7) at the (.01) significance level.
It is known that 60 percent of all registered voters in the 42nd congressional District are Republicans. There registered voters are selected at random from the district. Compute the probability that exactly 2 of the 3 selected are Republicans, u..
A 15-minute Oil and Lube service claims that their average service time is no more than 15 minutes. A random sample of 35 service times was collected, and the sample mean was found to be 16.2 minutes, with a sample standard deviation of 3.5 minute..
Compare the differences of Simple random sampling & Cluster sampling using specific examples, and show the pros and cons of each method.
In a pilot study, five kids are given several problems of each type to practice (and then tested on three problems), in one of the three Sequences: D-R-T, T-D-R, OR R-T-D.
Costs of Television: Listed below are prices (in dollars) and quality rating scores of rear-projection televisions. All of the televisions have screen sizes of 55 or 56 inches.
What is the calculation if facebook reports that the average number of facebook friends worldwide is 175.5 with a standard deviation of 90.57 . If i was to take a sample of 25 students, what is the probability that the mean number of facebook frie..
What is the probability that the average of the scores of the two students from university A will be greater than average of the scores of the three students from University B?
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