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Data Analysis Problem: For the data set below, calculate the following: Mean or average Variance Standard Deviation Mode Medium Range Q1, Q3, and IQR
44 52 56 48 39
41 54 50 41 45
44 46 40 55 47
39 53 53 41 43
41 48 51 56 45
44 43 48 47 46
Find out the required probabilities utilizing Binomial distribution. According to Best buy, 2/3 citizens have iPods. In a randomly selected group of 3 iPod owners.
State the null hypothesis H 0 and the alternative hypothesis H 1 that we would use for this test. Determining null and alternative hypotheses for the height of a plant.
The Gallup Poll asked a sample of 178 U.S. adults, "Did you, yourself, happen to attend church or synagogue in the last 7 days? Use "Plus Four" method to have a more accurate 95% confidence interval.
A researcher is testing the effect of a new cold and flu medication on reaction time. A sample of n = 9 students is obtained and each student is given the normal dose of the medicine.
To find out whether the course is effective in increasing sales, the appropriate set of hypothesis for testing is:
a random sample of 625 sat scores has a mean of 1500. assume that sat scores have a population standard deviation of
A sample of 3000 observations has a mean of 82 and a standard deviation of 16. Using the empirical rule, find what percentage of the observations fall in the intervals , and x+/- 1s, x+/- 2s x+/- 3s.
airlines overbook tickets sales based on the assumption that a percnetage of passengers will not show on the day.
The State Department of education requires local school districts to keep records on all students within their district. Determine if the following items are categorical or numeric variables.
all work must be done independently.a retrospective sample of males in a heart-disease high-risk region of the western
your price per unit (P), and the number of units (U) sold, you can use a mathematical equation to determine your net income (NI). In this case the formula is: NI = [U * (P-VCu)] - FC.
determine the appropriate hypothesis tests to be used in four research projects described below. in selecting the
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