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Rich Happier: 2012 A Gallup poll asked, "Do you think that rich people in America today are happier than you, less happy, or about the same?" In 2012, 27% said less happy, 11% said happier, and 57% said about the same.
The reason these don't add to 100% is that there were some people who had no opinion. Suppose Gallup were to do another survey polling 1500 people, and the percentages were the same as those in 2012.
a. How many respondents would say less happy?
b. How many would say happier?
c. How many would say about the same?
Determine which is the dependent variable Y and which is the independent variable X. Explain your reasoning. Draw a scatterplot and indicate the relationship if any. Explain. Compute the least-squares regression equation. Show major line items of you..
samples of our students from an applied experimental design class were polled regarding the number of hours they spent
The probability that a bank customer will default on a loan is 0.04 if the economy is high and 0.13 if the economy is not high.- What is the probability that the person will default on the loan?
A college is considering making the purchase of a laptop computer a requirement for some of its programs. In the past, only 20% of students owned laptop computers. A random sample of 300 students revealed that 77 of them had laptop computers
If, in such a county, 15 seniors in this age group were to come down with such an illness during the coming year, would this be considered rather unusual? Explain your conclusion.
What measure would you use and why? Make sure to provide enough detail about the situations so that others can understand your responses. Work as a correctional officer.
suppose a reputed psychic in an extrasensory perception esp experiment has called heads or tails correctly on ten
a. Determine the mean and median for the PHSI between January 2004 and August 2005. Specify the shape of the PHSI's distribution. b. The PHSI was at 111.0 in January 2004 and it was at 129.5 in August of 2005. Determine the average monthly increa..
Now suppose that the die is loaded so that the probability of any particular simple event is proportional to the number showing on the corresponding upturned face; that is, P(O1) = c, P(O2) = 2c, . . . , P(O6) = 6c. What are the probabilities of t..
Ethical Guidelines for Statistical- Why is it important to statistics ethically? Give an example of unethical use of statistics and explain why it is unethical.
the us senate committee consists of 8 members. 5 members are democrates and 3 are republicans. a subcommittee of size 4
From a shipment of 500 iPods, 6 of which have a click wheel problem, a simple random sample of 30 ipods is taken and the number found to have the click wheel.
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