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- In a memory test, the test subjects are given a large number and are asked to memorize it. Historical records show that 80% of test subjects pass the test. To pass the test, a subject must exactly repeat all the digits in the number after two hours. A random sample of 625 people to take the memory test is going to be chosen. Let p be the proportion of people in the sample who pass the test. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of P. 0 (b) Find the standard deviation of p. 0 (c) Compute an approximation for P(P >0.84), which is the probability that more than 84% of the people in the sample pass the test. Round your answer to four decimal places. 0 XA survey was undertaken to compare the educational background of several different generation. One generation of interest was the Millennials (those born after 1980). A sample of 650 Millennials was taken, and each was asked to report the highest level of completed education. It was found that 214 of those surveyed had completed a Bachelor's degree or higher. With 98% confidence, we estimate between ______% and _______% of all Millennials have completed a Bachelor's degree or higher. (After converting to percentages, round the limits of your interval to two decimal places.) A sample of 682 Gen Xers (those born between 1965 & 1980) was taken and they were asked the same question. Of this sample, 169 individuals had completed a Bachelor's degree or highter. With 98% confidence, we estimate between ______% and ______% of all Gen Xers have completed a Bachelor's degree or highter. (After converting to percentages, round the limits of your interval to two decimal places.)A statistician wants to obtain a systematic random sample of size 76 from a population of 7453. What is K? __________ To do so they randomly select a number from 1 to k, getting 57. Starting with this person, list the numbers corresponding to all people in the sample. 57,_____,_____,_____ ...
- Use the random numbers generated above to select a random sample of n = 3 values from the data set shown below: 02 13 25 33 O45 55 58 71 O 84 84 or Submit Question Jump to Answer MacBook Air 100 F4 F2 F3 F5 F6 F7 F8 F9 %23 24 & 4. 5 6 8 R. Y FI #3Numbers are given in this order: Observed count, expected count, contribution to chi square Find out the missing contribution to chi square for drug C, did not improve. Give a numeric answer to three decimal placesBus-173 (Applied Statistics)
- 14The number of dollars a round trip plane ticket costs from North America to Europe is normally distributed with a mean of $1,780 and a standard deviation of $335. What is the probability a randomly selected ticket costs between $775 and $2,785? Enter your answer in decimal form. For example. 75% should be entered as 0.75In the diagram below, all circles represent products and the shaded circles represent defective products. If three items are drawn at random from the lot, what is the probability that they are not defective? оооо ооо оо оо 0000 0 а. 0.5113 0 b. 0.4233 О с. 0.7234 Od. 0.8095 0 e. 0.0030
