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Question: 1. When people choose a number between 1 and 10, the mean is 6. To investigate the effects of subliminal (below threshold) stimuli on behavior, a researcher embedded many low numbers (1 to 3) in a video clip. Each number appeared so briefly that it couldn't consciously be seen. Afterward the participants were asked to "choose a number between 1 and 10." Analyze the data with a t test and an effect size index. Write an interpretation.
2. Please review the objectives at the beginning of the chapter. Can you do them?
(a) What is the best estimate of the average obesity percentage for these countries? (Round your answer to two decimal places.) (b) The United States has an average obesity rate of 33.9%. Is this rate above average or below?
Therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed.
Suppose a research firm conducted a study to determine the average amount of money steady smokers spend on cigarettes during a week.
A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening night midnight showing of the latest Harry.
What is the probability that the difference between the sample percentage and the population percentage will be more than 3%? Interpret the meaning of this probability.
What are the coefficients for testing this contrast?- Perform the test. Do the data provide evidence to support this hypothesis?
let x denote the amount of time for which a book on 2-hour reserve at a college library is checked out by a student and
What is the average annual income of a female with 8 years of eduction and 20 years ofworking experience? What about a male of the same condition?
Examine this decision, using reasonable input parameters. It doesn't appear that this deliberate fouling strategy is used very often.
Conduct an appropriate statistical test at the 1% level of significance to determine whether the Department of Health's concern is justified. What conclusion can be drawn from the findings? Use Excel's NORMSDIST function to find the p-value for th..
the number of emergency calls received by the local 911 call center is as follows. using trend projection to forecast
The average math achievement test score of the population of eighth graders in a large city is known to be 100. You have selected a child at random. Her score turns out to be 110. You select a second child at random. What do you expect his or her ..
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