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Assume that a sample is used to estimate a population mean mu. Find the 80% confidence interval for a sample of size 1075 with a mean of 36.7 and a standard deviation of 5.5. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).
suppose that x represents a single observation from the distn given by fx theta thetaxtheta - 1 for 0 lt x lt 1find
one out of 5000 individuals in a population carried a defective gene. a random sample of 1000 individuals is studied.
Use any method to decide whether to rejects or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.
Contains at least 1 card of your denomination and gives you "trips" that is, contains exactly 1 card of your denomination and 2 other unpaired cards.
Use this information to compute a 95% confidence interval for average number of credit cards carried by students.
You take a random sample and perform a hypothesis test, getting a p-value of 0.2578. What is the appropriate conclusion? Conclude at the 5% level of significance.
What role of operations that applies when you are solving an equation does not apply when you are solving an inequality? What is the inherent meaning and justification of cross-multiplication as it applies to solving an inequality?
What would happen if the forest service agent took another sample of 31 trees? Would the slope change? Would the intercept change? What about a third sample of 31 trees?
Tread wear was found to be 80,000 miles with a standard deviation of 5,600 miles. What is the best estimate of the average tread life in miles for the entire population of these tires?
For all questions, clearly explain/show your answers. For the Analysis section, justify your answers with the appropriate graphs, statistics, equations, etc.
Construct the payoff table for this decision situation. Compute the expected value of each alternative amount of milk that could be stocked, and select the best decision.
State the correct decision and give justification for your decision.
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