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Conduct a marketing experiment in which students are to taste one of two different brands of soft drink. Their plan is to correctly identify the brand tasted. You select a random sample of 200 students and assume that the students have no ability to distinguish between the two brands.
A) What is the probability that the sample will have between 50% and 60% of the identification correct?
B) The probability is 90% that the sample percentage is contained within what symmetrical limits of the population percentage?
Heights are sampled of kids from three schools. Using a 0.05 significance level, if when looking at ANOVA results, your p-value is 0.04, what can you say about your sample data? no minimum word count.
What is the value of the standard error of the mean? What is the value of the confidence coefficient for a confidence interval with the indicated confidence level?
Determine how many miles they live from the Bank, is the mean travel distance for this sample considered a parameter or a statistic? Explain.
What is the probability that the number of tails is between 87 and 100 inclusive. round the final answer to 4 decimal places.
Use graphical sensitivity analysis to find out range of probabilities of state of nature S1 for which each of decision alternatives has largest expected value.
The standard deviation is 0.73. Would it be unusual to randomly select 10 people and find that greater than 8 recognize the Famous Brand?
Scatter plot, Correlation coefficient and Regression equation - Do a complete regression analysis by performing the steps below
Find the critical t-value that corresponds to 90% confidence. Assume 90 degrees of freedom.
As a condition of employment, Fashion Industries applicants must pass a drug test. Of the last 220 applicants 14 failed the test. Develop a 99 percent confidence interval for the proportion of applicants that fail the test.
In an article appearing in Today's Health a writer states that the average number of calories in a serving of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from 75
Suppose that = $7600, is there adequate evidence to conclude that mean annual wage of people from this county is signicantly dierent than state mean?
Make a forecast for 2004, using either the fitted trend model or a judgment forecast. Why is it best to ignore earlier years in this data set?
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