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Fit a multiple linear regression model for predicting the hospital duration using age, sex, body temperature, white blood cell counts, antibiotic use, blood culture and service (medication vs. surgery) Use a cut off value of 0.10 to assess the significance of the predictors. Identify all significant predictors. Assess the model fit for the multiple linear regression model using appropriate statistics and graphics. With this identify outliers and influential observations using appropriate statistics that can be generated in SPSS
Fit a multiple linear regression model for predicting the hospital duration using age, sex, body temperature, white blood cell counts, antibiotic use, blood culture and service (medication vs. surgery). Using a cut-off value of 0.10 to assess the significance of the predictors. Identify all significant predictors.
Which of the following would produce a new confidence interval with smaller width based on these same data and produce a new confidence interval
Determine the 95% confidence interval for your estimate what data have you utilized as the basis of your predictions what suppositions have you made.
At.01 significance level, can we conclude that 30-year mortgage rate for small banks is less than 6%? Evaluate the p-value.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Obtain the simple linear regression equation, then analyze the residuals by (a) constructing a histogram
If we fit the least-squares line to the 12 data points (one for each month) we obtain the following results from a software package. Notice that temperature is taken as the explanatory variable and crawling age as the response.
Let Y be the number of envelopes for which the machine fails to remove a check. Using the Central Limit Theorem to approximate P{Y≤10}.
Find the value for the correlation coefficient r.
Simulate both one-and two-teller systems, calculate waiting time, average queue length, and percentage utilization for each system.
Compute an F-statistic for each linear construct and determine its significance.
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
If you have a statistical package that computes binomial probabilities, find the probability that at least five funds outperform the market in all 10 years.
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