QUESTION 5 "If we have a sample of 15 individuals, what is the degrees of freedom for this sample?" 0 15 O 14 O 200 OD QUESTION 6 A sample statistic is said to be unbiased if the average value of the statistic across samples is higher than the true population paramter. 0 True 0 False QUESTION 7 What happens to the standard deviation of a sample if we multiply every score in the sample by 10? 0 "Nothing happns, the SD stays the same" 0 The SD gets divided by 10 O The SD no longer exists 0 The SD is also multipled by 10 QUESTION 8 Why is it important to know the variance or SD of a sample? 0 It gives a sense of what the whole distribution looks like Q It gives a sense of where a score falls in the distribution Q It helps us to know whether we can identify a pattern in our data 0 All of the above QUESTION 9 We use degrees of freedom when we are calculating variance for a sample because 0 othenrvise the variance will be biased O othenrvise the variance will be boring O "othenivise, the variance will be larger than any of the observations in the data se \" O "othenrvise, the variance will be smaller than any of the observations in the data set"