STA 2015 Quiz 6_ questions and answers_ latest updated spring 2026 -Galen College.

STA 2015 Quiz 6_ questions and answers_ latest updated spring 2026 -Galen College. STAT 2015 Quiz 6 Question 1 The t-distribution is used when the exact value of the population standard deviation is known. True False Question 2 The independence condition required for using the Central Limit Theorem can be satisfied if the data come from a random sampling process. True False Question 3 The t-distribution is bell-shaped like the normal distribution, but it has tails that are ? indicating that observations are more likely to fall beyond two standard deviations from the mean. shorter thicker non-existent thinner Question 4 In a t-distribution, the degrees of freedom describe the ? of the t-distribution. correctness usefulness normalityshape Question 5 As sample size increases, the t-distribution approaches the standard normal distribution. True False Question 6 When using the t-distribution, the population standard deviation is used to calculate the sampling error (SE). True False Question 7 Paired data is data that has a special ? between data pairs. correspondence difference normality sum Question 8 When analyzing paired data, it's useful to consider the difference in outcome of each pair of observations. True FalseQuestion 9 When performing a t-test for a single mean with sample size 28, the degrees of freedom would be ? . 28 30 27 29 Question 10 ANOVA is a process that allows one to compare means across many groups. True False