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You plan to conduct a marketing experiment in which students are to taste one of two different brands of soft drink. Their task is to 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. (Hint: if an individual has no ability to distinguish between the two soft drinks, then each brand is equally likely to be selected).
1. What is the probability that the sample will have between 50% and 60% of the identifications correct?2. The probability is 90% that the sample percentage is contained within what symmetrical limits of the population percentage?3. What is the probability that the sample percentage of correct identifications is greater than 65%?4. Which is more likely to occur-more than 60% correct identifications in the sample of 200 or more than 55% correct identifications in a sample of 1,000? Explain.
Identify the null and alternative hypothesis, test statistic, P-value,critical values and state the final conclusion that addreses the original claim:
Sketch the distributions involved, and (c) explain your answers to someone who has never had a course in statistics.
Quality control inspectors randomly select 16 parts, weigh each, and then compute the sample average weight for the 16 parts. The probability that the mean weight of these 16 parts is more than 41 grams or less than 39 grams is?
Evaluate and discuss the following hypothesis based on what you have learned about hypothesis statements. Should they be written differently, or are the sufficient the way they are stated?
A shock can cause the failure of component 1 alone with probability p, component 2 alone with probability q, both components with probability r, or have no effects with probability 1-p-q-r. Suppose no repairs are possible and the system fails when..
To maximize Andre's probability of landing on the net, how far away from the cannon should he position the nearest edge of the net?
After treatment is administered to individuals in sample, sample mean is found to be M = 55. Determine Cohen's d measure effect size for both tests (σ = 20 and σ = 10).
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
The table shows the retail market share of passenger cars from Ford Motor Company as a percent of the US market.
A die is rolled 60 times. An "ace" is the side with one dot. Use the normal approximation to estiate the chance of getting exactly 12 aces.
To find out whether two categorical variables are independent, one should use the.
Scatter plot, Correlation coefficient and Regression equation - Do a complete regression analysis by performing the steps below
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