Test the hypothesis of a zero slope using the r function ols

Assignment Help Basic Statistics

Reference no: EM131397173

R has a built-in data set called leuk. The third column indicates survival times of patients diagnosed with acute myelogenous leukaemia. The first column indicates the patient's white blood cell count at the time of diagnosis.

Using least squares regression, assuming homoscedasticity, test the hypothesis of a zero slope using the R function ols. Test this hypothesis again, only now do not assumed homoscedasticity; use the function olshc4.

Reference no: EM131397173

Questions Cloud

Compute the moments for the column-strip : Assume the slab is 7½ in. thick and supports a superimposed dead load of 25 psf and a live load of 50 psf. There is no edge beam. The columns are all 18 in. square.

Percentage of animals infected : A virus is spreading across an animal shelter. The percentage of animals infected after t days is given by V(t)= 100 / 1 + 99e -0.135t (its 100 over that other stuff)

Explain why given result is not a satisfactory reason : Verify that for the data in Table 6.6, when testing the hypothesis of homoscedasticity using the R function khomreg, you fail to reject with α = 0.05. Explain why this result is not a satisfactory reason for assuming homoscedasticity.

Identifies what the confidential information in scenario is : Identifies what the confidential information in the scenario is. Analyzes why the client would want the information to remain undisclosed and what the potential issues could be if the information was disclosed.

Test the hypothesis of a zero slope using the r function ols : Using least squares regression, assuming homoscedasticity, test the hypothesis of a zero slope using the R function ols. Test this hypothesis again, only now do not assumed homoscedasticity; use the function olshc4.

Determine a p value when testing the hypothesis : For the following 10 bootstrap sample means, determine a p-value when testing the hypothesis H0: µ = 8.5.- What would be an appropriate 0.8 confidence interval for the population mean?

How can long-term assets best be tested for ownership : ACC 497- How can long-term assets best be tested for ownership? What effect would a decrease in interest rates by the Federal Reserve most likely have in the nation's manufacturing sector, all other factors remaining constant?

Assume that the population is growing exponentially : At the beginning of the year 1995, the population of Townsville was 3255. By the beginning of the year 2015, the population had reached 4543. Assume that the population is growing exponentially, answer the following.

Why is the confidence interval substantially longer : Use trimci to get a confidence interval for the mean, resulting in (8.50, 33.99). Why is the confidence interval substantially longer?

User Account

All Pages