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Optimism and LongevityA cancer specialist from the Los Angeles County General Hospital (LACGH) rated patient optimism in 20- to 40-year-old male patients with incurable cancer in 1970. In 1990, the researcher examined hospital records to gather the following data:• Socioeconomic status (1-7 rating of occupation; higher ratings indicate higher levels of SES)• Age in 1970• Optimism in 1970 (1-100 rating, higher scores indicate higher levels of optimism)• Longevity (years lived after the 1970 diagnosis)Using the SPSS data file for Module 7 (located in Topic Materials), calculate a simultaneous multiple regression with SES, age, and optimism as the independent variables and longevity as the dependent variable.1. Do the independent variables correlate statistically significantly and practically with the dependent variable?2. Is collinearity between the independent variables a concern?3. What is the R and adjusted R-square for all independent variables entered simultaneously?4. What variable(s) provide a significant unique contribution(s)?5. Compose a results section for this statistical analysis.
Determine the critical value, z0, to test the claim about the population proportion p
I'm trying to determine what happens to the sample size if the level of confidence is reduced from 95% to 90% but the allowable error and the standard deviation remain
What is the probability that all 5 are basketball players? If the players are to be arranged in a line, how many arrangements are there if the basketball players are together?
How large a sample must one take to be 90% confident that the estimate is within 0.05 of the true proportion and find the 99% confidence interval of the population proportion of persons living in Phoenix who are obese.
What is the difference between hypothesis and theory? If there is a difference between the two, what comes first - hypothesis or theory?
If you were with the franchisee, would you want the level of significance to be higher or lower? why? if you used the franchisee's level of significance, would your power be higher or lower than before or would it not change?
A reasearcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to test the claim that the treatment population mean is smaller than the control po..
Calculate the expected number of days it takes to get the order and standard deviation.
The population of lengths of aluminium-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches.
A box in a certain supply room contains four 40 w light bulbs, five 60-W bulbs, and six 75-W bulbs. If two are randomly selected from the box and at least one of them is found to be rated 75-W.what is the probability that both of them are 40- W bu..
Using Excel or any Regression Program, please run the sold price as a function of Lot Sqt, BR, and Age - also bring the computer output of the Regression.
How large a sample should she check in order to be 93 percent confident that the true proportion is estimated to within 0.014?
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