Normal population produced the mean
A random sample of size n=9 from normal population produced the mean x bar = 9 and the standard deviation s = 1.5. Obtain a 95% confidence interval for μ and test H0 =μ = 10 against H1 = μ doesn't equal 10 based upon confidence interval.
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The property owner wishes to fence the garden plot adjacent to the road. Determine the function which models cost of fencing garden.
People arrive at a queue according to the following scheme: throughout each minute of time either 0 or 1 person arrives. The probability that 1 person arrives is p and that no person arrives is q=1-p. Let Cr be number of customers arriving in firs
Is the claim that M>3.5 substantiated by these data? To answer this question, formulate the null and alternative hypotheses, calculate the test statistic, determine the p-vale, and make your conclusions.
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The January 2007 Consumer Reports study found that 15% of 525 broiler chickens tested were infected with the Salmonella. Determine the margins of error for report if we want 90% confidence in our estimate of proportion of infected chickens.
Is the claim that µ > 3.5 substantiated by these data? To answer the question, formulate the null and alternative hypotheses, calculate the test statistic, find the p-value and then make your conclusions.
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