Which measure of dispersion do we use for a right-skewed distribution? 0 Sample mode 0 Sample variance 0 Sample range @ Sample IQR Question 2 [1 point} xx Saved A market research firm wants to estimate the average income of consumers using o' XiZg X )\" W The researcher wants the margin of error of the interval to be at most 0.1 at S596 confidence. Suppose it is known that o':2 Calculate the minimum sample size n neeclecl to guarantee this