Which of the following about the t-distribution is true? (Choose all that apply) () Its shape accounts for the variability of using sample data. O It uses the population standard deviation. ) It is possible to use with small samples. O) It is the same shape as the normal distribution. Question 2 2.5 pts The "fat tails" in a t-distribution helps account for the ... O variation between samples and the population. O variability between cases. fact we are doing analyses on a sample. O uncertainty from using s as an estimate of aDegrees of freedom are a mathematical way to correct for ... O bias. O underestimates caused by having fewer independent pieces of information than your sample size sample size. O overestimates from having more information, such as the mean, than just your individual cases. Question 4 2.5 pts The probability of a t-test statistic is dependent on the degrees of freedom. O True O False[ Select ] A hypothesis is abou a parameter and we use data data v to test the hypothesis