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An advertising agency is hired to introduce a new product. The agency finds that after its campaign 66% of all consumers are familiar with the product. We ask 10 randomly selected customers whether or not they are familiar with the product. (a) Is this a binomial experiment? Explain how you know. (b) Use the correct formula to find the probability that, out of 10 customers, exactly 5 are familiar with the product. Show your calculations or explain how you found the probability.
Find the probability taht exactly 6 are satisifed with the airlines. Find the probability that fewer than 4 are satisfied with the airlines. Find the probability that 5 or more are satisfied with the airlines. Find the probability that between 3 a..
What is the chi-square goodness-of-fit test? What are the differences/similarities between this test and an independent t-test? How do you know when to use one analysis over the other? Show an example.
Determine the sample space of one such throw and determine the probability for each event and in the game of Ludo, a player has to throw one die and move a selected token based on the number shown on the die.
No information is available about its value. How large a sample size is needed to estimate it to within 0.15 with 99% confidence?
What is the standard error of the difference between the means?
Identify this F ratio. What does the F ratio tell you about the fit of the regression equation to the sample points? What does it suggest?
In an analysis of variance summary table, if the mean square between = 35 and the mean square within = 28, then the null hypothesis of the groups having the same mean is?
Misses the dart board with probability 0:02, what is the probability that seven throws will result in no bull's-eyes, no triples, a double twice, and a complete miss once?
Based on these results, a confidence interval for the population mean is found to be μ = 5.7 ± 4.4. Find the degree of confidence.
A researcher is conducting proportionate stratified random sampling with a sample size of 250. Approximately how many people should be sampled from each stratum?
Regression - What factors predict duration of dyspnea in elders with heart failure?
Conditional and compound probabilities.The table below gives the distribution of blood types by gender in a group of 1000 individuals.
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