Recent poll 1875 corporate exec showed aver price car $46,000 = sample statistic - random # generator
choose 10 cities. Student collects data from each person in cities = cluster sample - market researcher
chooses 20 people at random from each neighborhoo
90% 1.645, 95% 1.96, 98% 2.326, 99% 2.576, Rejected is rejecting the Ho, Fail to
reject means not enough evident to conclude anything.
Population Proportion =
p
z 2 p (1 p) n
p = given # / total = 0.l00 ex (yes
or no question)
Population Mean =
x
t 2s n
HARRIS TEETER V/S FOOD LION
Is Harris Teeter more expensive then Food Lion? My answer is yes
Shopping at random, I collected the prices of different items from different location at the Food Lion store.
I then searched online at the Harris Teeter website
Recent poll 1875 corporate exec showed aver price car $46,000 = sample statistic - random # generator choose 10 cities.
Student collects data from each person in cities = cluster sample - market researcher chooses 20 people at random from
each neighborhoo