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suppose a sample ofnbsp1000nbspadults was askednbspdo you buy clothes from your mobilenbspdevice and the results are
a professor claims that the average of scores obtained by mathematics majors is close to the average of scores obtained
a researcher wishes to test the claim that the average cost of tuition and fees at a 4-year college at least 7000 she
a womens clothing department wants to find out if there is a relationship and what kind of relationship between the
the healthy drinks store stated that the average consumption of water per day was at least 100 gallons to test the
make up your own problem that can be solved with the equation pa or b pa pb - pa and b state the problem and show all
suppose that x is a discrete uniform random variable with pmf equal to 2 for values of x 1 2 3 4 and 5 determine the
if a combination lock has 4 numbers to any combination and 40 numbers on the dial assuming there cannot be 2
a sample of 100 women is obtained and their heights in inches and pulse rates in beats per minute are measured the
suppose that 0 was inside of the 95 confidence interval from that measure could you conclude that the water became
a quarter back completes 32 of his passes we want to observe this quarterback during one game to see how many pass
in the article randomised clinical trial yoga vs written self-care advice for ulcerative colitis aliment pharmacol ther
a bucket contains 18 blue slips of paper and 27 green if you select 2 without replacement what is the probability that
1 in a population of normally distributed measurements the mean equals 70 say you took a random sample size of 16 from
an advertising executive hypothesized the use of clay puppets in a tv ad would be rated as more interesting than humans
recently a large academic medical center determined thatnbsp6nbspofnbsp17nbspemployees in a particular position
amanda and ben are in different statistics classes amanda scores a 15 on a quiz her classmates have a mean of 20 and
in the regression model below we regress an individuals years of education on hisher fathers years of education and
in the following regression modellnhousepricebeta1beta2sizebeta3bedroomsuwe study the effect of house size and number
if in a sample of n16nbspselected from a normalnbsppopulationnbspx56 and s20 the critical values of t if the level
a research article described a random sample of 584 smokers who tried to quit smoking by using either a nicotine patch
historically 25 of all students taking an statistics course have failed ie receive a grade below c professor han thinks
a recent survey identified the top accounting firms within 10 geographical regions across country x the top 2 regions
suppose that a deck of n cards numbered 1 2 20 is thoroughly shuffled and dealt for 1 lt i lt 20 let xi be the number
choose a business question that you can answer with the help of statistical analysis briefly describe that question and