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Question: For each of the following scenarios, write the desired probability in a format such as P(X = 10) and specify n and p. Do not actually compute the desired probability. If you cannot specify a numerical value for p, write in words what it represents.
a. A random sample of 1000 adults is drawn from the United States. X = the number in the sample who are living with a partner but are not married. The desired probability is the probability that at least 1/4 of the sample fits this description.
b. A pharmaceutical company claims that 20% of those taking its new allergy medication will experience drowsiness. To test this claim, it randomly assigns 500 people to take the new medication and measures X = the number who experience drowsiness. The desired probability is the probability that 110 or more people in the sample experience drowsiness if the claim is true.
c. A student has not studied the material for a 20-question true-false test and simply guesses on each question. A passing grade is 70%; the desired probability is the probability that the student passes the test.
Develop a three-year moving average to forecast sales in year 12. Develop a 3-year weighted average to predict demand in year 12, in which sales in the most recent year is given a weight of 2 and sales in the two years prior to that are each given..
You're interested in determining the volume of sales dollars necessary for the coming year to reach the break-even point. You've decided to break down the sales for the club into four categories, they are as follows:
Identify the scaling of Number of bicycles ridden by students in the freshman class, Types of bicycles ridden by students in the freshman class variables.
In this problem, we will analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product
manufacture of a certain component requires three different machining operations performed sequentially. machining time
A clinical trial was conducted comparing a new compound designed to improve wound healing in trauma patients to a placebo. After treatment for 5 days, 58% of the patients taking the new compound had a substantial reduction in the size of their wou..
a random sample of 16 csn students is taken. the average age in the sample was 27 years with a standard deviation of 4
What variables will be included, and collection methods used to obtain data. What is the population, sampling method used and why it is the best. Plan for data: describe what you will do with data once you have it, include types of graphs used and..
Construct a 95% confidence interval for the mean number of calories per bite for similar desserts.
A client has an investment portfolio with mean value is equal to 4500 USD, with a standard deviation of 300 USD. What is the probability that the value of her portfolio is between 3900 USD AND 5400 USD?
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? State the null hypothesis and the alternate hypothesis.
Combined Fuel Economy (using an average of driving conditions) in miles per gallon by whether the car has two- or four-wheel drive. Summarize what you see about the fuel economies of these two types of vehicles.
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