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A population has m = 50 and s = 5. If 10 points are added to every score in the population, what are the new values for the mean and standard deviation?
Give a variable that could be used to stratify the population for each of the following studies. List at least four subcategories for each variable.
Testing Hypothesis Using Chi Square Test
b. Compute E[(1 2 X)m]. If X represents the proportion of a substance consisting of a particular ingredient, what is the expected proportion that does not consist of this ingredient?
a company is studying the number of monthly absences among its 125 employees. the following probability distribution
The procedure used to obtain your sample (i.e., random or nonrandom sampling) is not the same as the procedure for assigning participants to conditions; distinguish between random sampling and random assignment.
In 1998, as the advertising campaign, Nabisco Company announceda "1000 Chips Challenge," claiming. Develop the 95% confidence interval for average number of chipsin bags of Chips Ahoy cookies.
thirty percent of the people called agree to participate in a brief telephone survey. in a random sample of four people
Is there a method which is accepted across industries for determining the minimum size of valid sample? N>50 +(8m aka 8 times the number of independent variables)
The standard deviation of heights for women over 20 years old is known to be 2.6 inches. Find the range of interest.
the center of disease control and prevention reported the diastolic blood pressure of adult women in the us are
When the machine is properly calibrated, what is the probability that the mean for a simple random sample of this size will be at least 26.2 seconds?
which of the following is a valid objective function for a linear programming problem?max 5x33y3min 1x 3y3max 5x2
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