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Research Scenario: Children who experience chronic pain as a result of medical procedures are the focus of a psychiatrist's study. Specifically, the psychiatrist wants to measure whether a new program helps decrease feelings of chronic pain in the short-term. She measures children's self-reports of pain levels before treatment on a standardized scale with a range of 0-10, with 10 being the most severe. She then administers the new program, and measures children's pain levels after treatment. The data are contained in the table below. Does the new treatment decrease self-reported levels of chronic pain?
Which SPSS test should I use for this question?
In each of the following situations, specify the population. Also, state the two categorical variables that would be measured for each unit in the sample.
Under what condition might you prefer to use the median rather than the mean as the best measure of central tendency? Explain why
How can we determine whether there are violations of the ANOVA model assumptions?- What should we do if such violations exist?
If a buyer chose 5 CDs randomly from the box without replacement, what is the probability that less than three of the chosen CDs were country music?
The null hypothesis is that the mean math scores for boys and girls in fifth grade are the same. Conduct a hypothesis test.
Explain why it makes sense for a set of data to have a correlation coefficient of zero when the data show a very definite pattern.
World-renowned physicist Stephen Hawking claims that black holes do not gobble up everything that falls into them without leaving a trace.
The probability density function of X X is f(x)=360x 3 f(x)=360x3 , 10=x=15 10=x=15. Find the expected life of this device.
In carrying out a study on views of capital punishment, a student asked a question 2 ways:
assume that the data has a normal distribution. also assume that the standard deviation of the population sigma is
What is the (a) Minimum number of doctors required so that at least 70% of the arriving patients can receive treatment immediately
What actions can be taken to improve product availability while reducing safety inventory?
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