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Question Help A manufacturer of game controllers is concerned that their controller may be difficult for left handed users. They set out to find leflies to test Suppose that about 19% of the population is left handed They select a sample of six customers at random in their stores. Complete parts (a) through (c) below a) How many leflies do you expect in the sample? You can expect nyotes) (Type an integer or a decimal) b) What do you expect the sample standard deviation to be? The standard deviation would be (Round to two decimal places as needed) c) If we keep picking people until we find a lefty, how long do you expect it will take? It should takes (Round to two decimal places as needed)

Answer 1

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Solt p= 0.19 ha 6 9 = (1-P) = 0.81 ca) How many leifties do you expect is the sample h* P = 6 * 0.19 = 1:02 (6) standard deviation (o)=5h4P*q 6*0.19 *0.81 4.58 C) There are 19 lefties for every 81 vigetics you expect every (31/19) people to be righties you encounten a lefteri Therefore you should expect to take (+) 5,26 tres