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1using your own words what is statistical variability why is it important for researchers to understand the variability in their data2provide
to get a c in history nandan must average 74 on four tests scores on the first three tests were 69 74 and 65 what is the lowest score that nandan can
optimism and longevitya cancer specialist from the los angeles county general hospital lacgh rated patient optimism in 20- to 40-year-old male
1a rbd on the number of insects was performed yielding the following table test the constrast if insecticide 1 and 2 are different from 3 and then
describe data and objectives - starting with descriptive statistics reader has no idea what this is all about histogram needs much finer bins to be
another one i need these corrected so i can figure the correct way please helpdf is wrong can not pool variances when they differ this much there
the spell-checker in a desktop publishing application may not catch all misspellings eg their there or correctly interpret the spellings of proper
at a community college it is known that the grade point average gpa of all students has a distribution which is both mound shaped and symmetric the
1 a create a set of 5 points that are very close together and record the standard deviation next add a 6th point that is far away from the original 5
exploratory data analysisa perform exploratory data analysis on all variables in the data set realizing that you have six groups be sure that your
there are assumptions of multiple regression one of them is the residuals are independent this means that successive observations of the dependent
hemmingway inc is considering 5million research and development rampd project profit projections appear promising but the companys president is
1 what is the purpose of conducting an experiment how does an experimental design accomplish its purpose2 what are the advantages and disadvantages
a group of statistics students decided to conduct a survey at their university to find the average mean amount of time students spend studying per
in studies for a medication 13 percent of patients gain weight as a side effect suppose 514 patients are randomly selected use the normal
a file cabinet manufactor estimates that 5 of its file cabinets will have drawers that close improperly assume a production of 120 cabinets is
starbucks coffee co uses a data-based approach to improving the quality and customer satisfaction of its products when survey data indicated that
directions answer each of the following questions show your work or explain how you arrived at your conclusion whenever appropriate use your
rocky mountain tire center sells 9000 go-cart tires per year the ordering cost for each order is 40 and the holding cost is 50 of the purchase price
quality control is an important issue at acme company which manufactures light bulbs in order to conduct testing of the life hours of their light
the business manager of a large corporation wanted to determine whether there was a difference between what salesmen spend on lunch and what
a study was conducted to estimate hospital costs for accident victims who wore seat belts twenty randomly selected cases have a distribution that
in order to monitor the ecological health of the florida everglades various measurements are recorded at different times the bottom temperatures are
1write your response to the following questionwe often hear you can lie with statistics this is one way of saying statistics can be easily
calculate the standard deviation of the data for this calculation compute the difference between each one of the observations and the mean this