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A single observation of a random variable having a hyper geometric distribution with N = 7 and n = 2 is used to test the null hypothesis k = 2 against the alternative hypothesis k = 4. If the null hypothesis is rejected if and only if the value of the random variable is 2, find the probabilities of type I and type II errors.
Test, at the 5% significance level, whether the average cost-to-income ratio amongst all JSE companies adheres to the rule of thumb. Formulate the null and alternative hypothesis and interpret the findings.
consider a steady flow cycle consisting of a pump boiler turbine and condenser with water as the working fluid. the
Find the probability that 665 or fewer college students in the sample send and receive text messages with their phones? Is this result unusual?
Explain five steps used in hypothesis testing. Be specific, using numerical examples as well as symbols and verbal explanations.
Select either the Least Squares Method, the Moving Average Method, or the Weighted Moving Average and provide step-by-step instructions you would employ to plot the associated trend line.
"Use the data in the following payoff matrix and regret matrix to answer the following questions. What is the optimal decision regarding at which location(s) to purchase property using the MAXIMIN decision rule?
If the population standard deviation σ= 25, what is the required minimum sample size to construct a 90% confidence level for the population mean with an allowable error of ± 3, using Z0.05=1.645?
Mmore than 520gms, within 10grms of the stated weight & weight that only 5% of bottles contain less than this weight?
Determine which statistical technique you will employ to measure the quality characteristics of your organization. Provide examples to support the rationale.
Find The probability of making exactly four sales, The probability of making no sales, The probability of making exactly two sales and The mean number of sales in the two-hour period.
consumption of alcoholic beverages by young women of drinking age has been increasing in the united kingdom the united
Let f:N x N -> N be the function defined recursively as follows: Use induction on the sum i + j to prove that f(i, j) = 2i + j + 6 for all (i, j) in N x N.
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