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shyshy1791
07.12.2019 •
Mathematics
15. which of the following statements is true? a. if the calculated value of f statistic is higher than the critical value, we reject the alternative hypothesis in favor of the null hypothesis. b. the f statistic is always nonnegative as ssrr is never smaller than ssrur. c. degrees of freedom of a restricted model is always less than the degrees of freedom of an unrestricted model. d. the f statistic is more flexible than the t statistic to test a hypothesis with a single restriction
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Ответ:
c) is true
Step-by-step explanation:
Given are four statements. Let us check one by one
a) If the calculated value of F statistic is higher than the critical value, we reject the alternative hypothesis in favor of the null hypothesis
False, we reject H0 in favour or alternate
b) The F statistic is always nonnegative as SSRr is never smaller than SSRur.
F statistics is non negative but reason is bot SSRr and SSRur are positive
Not because SSRr is never smaller than SSRur
c) Degrees of freedom of a restricted model is always less than the degrees of freedom of an unrestricted model.
This is true because in a restricted we put constraints thus df will be less
d) The F statistic is more flexible than the t statistic to test a hypothesis with a single restriction.
False. F statistic is for testing variances while t statistic for means.
Ответ:
lol
Step-by-step explanation:
I'm only writing stuff for points