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[{"left":"Excel Problems 1\n\n
","right":"http://assignment.store/excel-problems-1/\n\nUnit 3 Exam\n\nVirtual\n\nElements\n\nof below.\n\nStatistics--S\n\nSTUDENT\n\nNAME:\n\nAnswer Course\n\neach of the\n\nproblems\n\nFor possible\n\npartial credit, show at\n\nleast the ideas of your work and formula's used in the spreadsheet--as\n\nexpressed earlier, the templates are available in the next worksheet for use\n\n(see the tab near the bottom of the Excel window). Any problem with an\n\nanswer only and no explanation/demonstration of the process(es) used to\n\nget that answer can only be graded correct/incorrect with no partial credit\n\ngiven. 1. following confidence levels and sample sizes?\n\n(Remember that in regard to confidence level this\n\nimplies z-value\n\ntwo-tails)\n\nCritical\n\nfor an 96% confidence level for\n\n(a) sample of size n= 50:\n\nCritical t-value for a 95% confidence level for sample\n\n(b) of size n = 30: 2 3. associated critical t-values as opposed to a zdistribution and critical z-values within a confidence\n\ninterval or hypothesis testing situation? Apple iPad engineers would like to know the mean\n\ntime for movie downloads. They calculated the\n\ndownload time for a specific movie by 28 randomly\n\nDetermine the mean and standard deviation of this\n\n(a) sample data. using this sample result to estimate the mean\n\n(b) download time for this same movie of all Apple iPads\n\nbased upon a 98% desired level of confidence. Determine the 98% confidence interval for the mean\n\n(c) download time all iPads. State your final confidence interval result in a\n\n(d) sentence that interprets the result within the context\n\nof the situation. 4. Answer the following: Download time of Apple iPads (in\n\n25\n\n28\n\n23\n\n26\n\n23\n\n25\n\n24\n\n25 What is the meaning of the term “null hypothesis” in\n\n(a) statistics. How do you know when to perform a “two-tailed” test\n\n(b) in a hypothesis-testing situation versus a “right-tailed”\n\nor “left-tailed” test? In multiple choice problems 5 and 6, select the best answer.\n\nas the test statistic from the collected sample and a 1.975 as\n\n5.\n\nyour critical value in a right-tailed test. Which of the following is\n\nthe correct decision statement for the test?\n\nA.\n\nFail to reject the null hypothesis\n\nB."},{"left":"","right":""},{"left":"","right":""},{"left":"","right":""}]
Excel Problems 1
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James Lewis
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