what is the null hypothesis in r what test is used for spectral density analysis? what is the key parameter in the f test for spectral density why is the critical value for the f test integrated in the plot what is the significance level for the confidence interval for the f test? which statement about the critical value of the f test is not optional? why is ftest optional in r what is the critical value in the f test what is the significance for the test for spectral density does r multitaper test for confidence interval what is the null hypothesis in r can you plot spectrum on mtm can you plot spectral density without a confidence interval which statement is used to test the spectral density test in r and how is it tested? how to do null hypothesis what is the spectral density of an a spectrum? why isn't the critical value of the f test integrated in a graph for the f test? what is the test value for the multitaper package? which is a useful parameter for multitapers? spectral density analysis which hypothesis is included in the f-test test and how to evaluate the spectrum