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Apply the ideas of questioning the data (namely, examining the sources of data to evaluate their representativeness and quality) to newspaper and magazines that you read. This is a good course-long activity to improve your statistical reasoning.
Project 1: Find an article that contains an example of a non-representative sample. Describe the sampling procedure and the weaknesses. How would you improve the sampling process? Attach a copy the article to your report.
Project 2: Find an example of an eye-catching headline or title for an article explaining the results of an investigation. Describe the sampling process. Give a few questions that should be asked before the conclusionsshould be accepted at face value. Attach a copy of the article to your report.
Stephanie bought eighteen pens, some black and the rest blue, for $8.22. The blue pens cost $0.06 more than the black pens. The number of blue pens that she bought was as close as possible to the number of black pens that she bought. What was the ..
A ball is thrown upward with a speed of 96 ft/s from the top of a building if height 432. Find the maximum height that it can reach.
Should you develop this product? How do you make a decision in this situation? Also, how can one come up with the probability of success (or failure)?
To determine the number of deer in a games preserve, a conservationist catches 555 deer, tags them and lets them loose. Later 534 deer are caught; 178 of them are tagged. How many deer are in the preserve?
let f be the function defined by f(x) = 12x^(2/3) - 4x. a) find the intervals on which f is increasing. b) Find the x and y coordinates of all relative maximum points.
for the remaining 30% you choose randomly among the 5 answers. What percent of the answers should you expect to get right?
It is known that 20 tickets were sold in advance and 15 the same day, for total receipts of $900 . What was the price of each kind of ticket?
A colony of bacteria grows according to the law of uninhibited growth. If 100 grams of bacteria are present initially, and 250 grams are present after two hours, how many will be present after 4 hours? Note: Do not round the value of k.
Five years ago, an automobile manufacturer started offering an extended warranty to buyers of its sport-utility vehicle. The extended warranty covered defects occurring after the initial three-year warranty expired.
How is solving for a specified variable in a formula similar to finding a solution for an equation or inequality? How is it different? Demonstrate how to solve a formula for a variable by creating an example.
researchers asked a sample of 50 1stnbspgrade teachers and a sample of 50 12thnbspgrade teachers how much of their own
If the rope is pulled in at a rate of 1.4 m/s, how fast is the boat approaching the dock when it is 10 m from the dock?
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