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For each of these questions you must provide a diagram indicating the area or the percentile of the relevant distribution for the question. These diagrams can be drawn and photographed with the picture file pasted in the space provided or cut and pasted from Minitab. You will lose marks if you do not provide diagrams. The answer to each question should be clearly stated (ie. do not just give computer output for an answer).
a. The Flaky Bakery is famous for its crusty croissants. The numbers of calories in these croissants are normally distributed with a mean of 300 and a standard deviation of 16 calories.i. Find the probability that a randomly selected croissant bought at the Flaky Bakery has less than 320 calories.
ii. Find the probability that a randomly selected croissant bought at the Flaky Bakery has between 280 and 290 calories.
iii. The croissants are packaged into boxes of six. Find the probability that the average number of calories in a box of six randomly selected croissants from the Flaky Bakery is more than 310 calories.
in a sample of children given a new flu vaccine a large number of the children develop a neurological disease. parents
q1.suppose you form a confidence interval for a sample average and the population standard deviation is known. what
Problems on Sampling Variability and Standard Error and Confidence Intervals
a random sample of size 38 is chosen from a population with an unknown mean and variance. the sample mean and standard
The lives of many people are affected by a fear that prevents them from flying. The Marist Institute for Public Opinion conducted a poll of 1014 adults
Of three cards, one is painted red on both sides; one is painted black on both sides; and one is painted red on one side and black on the other. A card is randomly chosen and placed on a table. If the side facing up is red, what is the probability..
According to data from the Tobacco Institute Testing Laboratory, Camel Lights King Size cigarettes contain an average of 1.4 milligrams of nicotine. An advocacy group commissions an independent test to see if the mean nicotine content is higher th..
Marge and Joe have five daughters. They decide to have another baby because they are sure the next one will be a boy (after all, what are the odds of having another girl!)
If PV is a tree before observing the evidence, then we would like PV PV |A= a to be also represented as a tree. Is this always possible?
the following data show the daily closing prices in dollars per share for a stock. period price 1 82.87 2 83.00 3
Suppose that 10% of all adults jog. An opinion poll asks an SRS of 400 adults if they jog. a) What is the sampling distribution of the proportion p^ in the sample who jog?
a previous study indicates that the percentage of chain smokers p who have lung cancer follows a beta distribution with
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