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Sara has eight new summer outfits. She plans to pack three of the new summer outfits in her trip to Tokyo.
(a) How many different ways can the three summer outfits be selected?
(b) Please describe the method used and the reason why it is appropriate for answering the question. Just the answer, without the description and reason, will receive no credit.
Format for answer (Example) nCr =10C3 = 10! /(10-3)!3! = 120
Identify a research issue, problem, or opportunity that uses data that has absolute zero measurements, ratio level data.
Find the probability that a randomly selected sheet manufactured by this factory is between 74.5 and 75.8 centimeters.
"A major retail chain uses survey data to estimate the mean age of customers. A 95% confidence interval for the mean age of all its customers is found to be (21.7, 46.5) using a sample size of 135"
Give the 90% confidence interval for the mean score in the population of all young women.
To find the probability values in case of raw data, binomial, normal
An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She randomly selects ten schools from the district and interviews all of the teachers at the selected schools.
Perform a parametric analysis by assessing the fractional change in the probability of failure with respect to a small change in the mean and standard deviation of selected variable.
Ten years ago, 53% of American families owned stocks or stock funds. A sample of 300 observations collected by the Investment Company Institute indicate
the ship is pushed through the water using an a-36 steel propeller shaft that is 8 m long measured from the propeller
1- use a ruler to measure the thickness of a single page of the text. awhich unit of measurement did you use amp why?2-
Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the level of significance, that houses in Sun Beach have higher appreciation over the past three years..
What are the differences between reference groups and referent systems?
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