The main inference to be made is that Howler monkeys weigh an average of 17 pounds and spider monkeys weigh an average of 14 pounds Both sets of data have a standard deviation (z) that is equal to 2
<span>The mean of the first set (howler monkey) = (15 + 16 + 17 + 17 + 17 +17 + 18 + 19)/ 8 The sum of all weights is divided by the number of monkeys weighed (n = 8)mean = 17<span> </span></span>
