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suppose that a sample of 15 randomly chosen people were put on a special weight loss diet the amount of weight lost in
stanford university conducted a study of whether running is healthy for men and women over age 50 during the first
in a recent sample of 84 used cars sales costs the sample mean was 6425 with a standard deviation of 3156 assume the
a telephone poll of 1000 adult americans was reported in an issue of time magazine one of the questions asked was what
refer to the above problem another question in the poll was how much are you worried about the quality of education in
six different national brands of chocolate chip cookies were randomly selected at the supermarket the grams of fat per
a quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served
using the same p and level of confidence suppose that n were increased to 100 would the error bound become larger or
from a stack of ieee spectrum magazines announcements for 84 upcoming engineering conferences were randomly picked the
insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a
according to a recent survey of 1200 people 61 feel that the president is doing an acceptable job we are interested in
an article regarding interracial dating and marriage recently appeared in the washington post of the 1709 randomly
refer to the problem abovea construct three 95 confidence intervalsi percent of all asians that would welcome a white
the ice chalet offers dozens of different beginning ice-skating classes all of the class names are put into a bucket
discussion correlation revelation regression and correlation are the most used and most abused tools in research people
construct a 92 confidence interval for the true proportion of girls in the age 8 - 12 beginning ice-skating classes at
the mean age for all foothill college students for a recent fall term was 332 the population standard deviation has
construct a 95 confidence interval for the true mean age of winter foothill college studentsidentify the following
using the same mean standard deviation and level of confidence suppose that n were 69 instead of 25 would the error
discussion putting you on many alleged studies are misleading in that the conclusions are often based on undisclosed