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designing and writing a report on a statistical study of your ownselect a question of your own to investigate using one
you are interested in using linear regression to test whether drinking a protein shake improves weightlifting
forty-four percent of consumers with credit cards carry balances from month to month five consumers with credit cards
a teacher wants to estimate the average pa of all teachers in a district she wants to be 95 sure her estimate is
three different brands of pain relief medication are available for minornbspaches and pains it is of interest to know
if x and y are statistically independent random variables both with probability density function fte-t i0 infinityt
if the slope of a straight line is 23 and correlation coefficient is 0777 calculate coefficient of
validity true story i once spoke to a retired professor who used to teach general studies geography his grading
reliability the data that we collect is not useful unless we know that it is reliable and valid think of the judges on
question to qualify for security officers training recruits are tested for stress tolerance the scores are normally
question i am sending this question second time because i have suspicion about the solution i am solving it by
mouse parts produces mouse ears white gloves and other parts that are incorporated into the production of mickey mouse
a consumer psychologist asked to test a claim by a swimming school that its instructors could teach the average
assume that you plan to use a significance level of alpha 005 to test the claim that p1 p2 use the given sample sizes
1 a producer specifies that the mean lifetime of a certain type of battery is at leastnbsp240 hours a sample of 18 such
1 consider a test of h0 mu le 100 versus h1 mu gt 100 suppose that a sample ofnbspsize 20 has a sample mean
according to a recent poll 29 of adults in a certain area have high levels of cholesterol they report that such
assume that womens heights are normally distributed with a mean given by mu equals 633 in and a standard deviation
assume that you want to test the claim that the paired sample data come from a population for which the mean difference
entertainment software association would like to test if the average age of gamers those that routinely play video
assume that the number of pieces of junk mail per day that a person receives in their mail box follows the poisson
in a survey of 635 males ages 18-64399 say they have gone to the dentist in the past yearconstruct 90 and 95 confidence
consider repair costs for car a and car b the mean repair cost for each is 500 per year which statistics about repair
a ski gondola carries skiers to the top of a mountain it bears a plaque stating that the maximum capacity is 14 people
your statistics teacher knowing the power of sampling decides to use only 3 of your 5 quiz grades in assigning your