Examlex
If f(x) = 6x4- 4x3 + 11 , find the intervals where f is concave up and where f is concave down.
T-statistic
A statistic calculated from a dataset to compare the mean of the data to a hypothetical mean as part of a t-test.
Critical Value
The boundary value from a statistical distribution where, if the observed test statistic is beyond this point, the null hypothesis is rejected.
Null Hypothesis
A default statement suggesting that there is no statistical significance between the specified datasets, or no effect of a certain variable.
T-statistic
A type of statistic used in hypothesis testing, calculated as the difference between an observed sample mean and a hypothesized population mean, divided by the standard error of the mean.
Q69: Use Rolle's Theorem to show that f(x)
Q91: Find all relative extrema of f(x) =
Q103: Answer true or false. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Answer
Q116: If f(x) = 4x<sup>4</sup> - 13x<sup>3</sup> ,
Q139: Find <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Find if
Q180: Use Newton's Method to find the largest
Q196: Find the value of c in the
Q378: Find the relative extreme values for f(x)
Q601: Sketch the graph of y = x<sup>2/3</sup>(x
Q613: Answer true or false. f(x) = 6e<sup>-</sup><sup>x</sup>