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a random sample of 49 drinks from a beverage-dispensing machine gave an average of 122 ounces with a standard deviation
joe knows from experience that on average it takes thirty-five minutes to mow his yard he really needs to mow the yard
the diameters of the holes in donuts produced by krispy kreme donuts are normally distributed with a mean of 11 inches
a stadium vendor serves draft beer in plastic cups on average the vendor places fourteen ounces of beer in each cup
anbspgas station sold a total of 8019 gallons of gas on nine randomly picked days suppose the amount sold on a day is
you work for a consumer watchdog publication and are testing the advertising claims of a tire manufacturer the
in a multiple regression equation k 5 and n 20 mse value is 510 and ss total is 51968 at the 05 significance level
suppose the weight of male babies less than 2 months old is normally distributed with mean 115 pounds and standard
insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a
details are appreciated1 a simple random sample of 40 adults is obtained and each persons red blood cell count is
the mean monthly rent for a one-bedroom apartment without a doorman in manhattan is 264000 assume the standard
using graphs shading and appropriate probability distribution table and assuming that the heights of women are normally
a random sample of 15 items is drawn from a population whose standard deviation is unknown the sample mean isnbspnbsp
question an ordinary fair die is a cube with the numbers1through6on the sides represented by painted spots imagine that
we would like to perform a two-tailed hypothesis test about mean at significance level of 005 the test statistic is
of the 41 males and females the daily number of servings of soda consumed and the daily amount of hours exercised were
an industrial psychologist consulting with a chain of music stores knows that the average number of complaints
in illinois pick 3 game you pay 50 cents to select a sequence of digits out of 1000 possibilities if you select the
according to a survey the mean serum cholesterol level for us adults was 1975 with a standard deviation of 417 a simple
electricity bills in a certain city have mean 9245 assume the bills are normally distributed with standard deviation
suppose that a sample size 58 is drawn from a population with mean 30 and standard deviation 51 find the valve the mean
suppose that a sample of size 64 is drawn from a population with mean 52 and standard deviation 65 find the value the
suppose that about 85 graduating students attend their graduation a group of 22 graduating students is randomly chosena
if you are flipping a biased coin 60 times where the chance of getting a head each time is 38 find the mean expected