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the file midterm dataxls has a tab labeled income data 2009 this data is collected income data from a sample of 400 people in 2009 use a hypothesis
we want to investigate the income data in the excel file midterm dataxls there is a tab labeled income data 2006 the data in the tab
you have an assembly line which produces 1l bottles of seltzer with a standard deviation of 005lbullassuming the distribution of volume is normal
the national marine fisheries services is part of the national oceanic and atmospheric administration nmfss programs support the conservation and
1a certain brand of batteries has a lifetime that has a normal distribution with a mean of 3800 hours and a standard deviation of 390
a new weight-watching company weight reducers international advertises that those who join will lose on the average 10 pounds the first two weeks
a study was designed to investigate the effects of two variables - 1 a students level of mathematical anxiety and 2 teaching method - on a students
to study the physical fitness of a sample of 28 people the data below was collected representing the number of sit-ups that a person could do in
the amounts of money won by the top ten finishers in a famous car race are listed below1172246 163659 440584
the quick method for a confidence interval for a proportion uses p plusmn1radicn as an approximation for a 95 confidence interval the margin of
bambridge associates llp has hired you to analyze the demand in 30 regional markets for custom financial plans for high net worth individuals y a
the recoverytime files record the time in days for male blue-collar workers to recover from a common wrist fracture each man was given a
according to a recent study when shopping online for luxury goods men spend a mean of 2401 whereas women spend a mean of 1527 suppose that the study
do people of different age groups differ in their response to e-mail messages a survey by the cent of the digital future of the university of
a coin that is balanced should come up heads half the time in the long run a coin is tossed 4040 times and gives 2085 heads is the coin biased use
a manufacturer has received complaints that aging production equipment is forcing workers to work overtime in order to meet production quotas
the monthly income in tk3939spersons workingin afarmis as flows 14870149301502014460147501492015720151601468014890 find average monthly
solve the following problem in spss a college is conducting a study of its students expectations of employment upon graduation students are sampled
a cognitive psychologists knows that concrete words which easily evoke images eg sunset truck are easier to remember than abstract words but she
consider a cournot duopoly with two firms firm 1 and firm 2 operating in a market with linear inverse demand pq x q where q is the sum of the
a rightist incumbent player i and a leftist challenger player c run for senate each candidate chooses among two possible political platforms left or
a the banks excess reserves are its actual reserves less required reserves actual reserves are given as 450 from its balance sheet required
in this problem we use the csdata data set which is available in csdatatxt we done an indicator variable say higpa to be 1 if the gpa is 30 or better
jockos garage has been accused of insurance fraud data on estimates made by jocko and another garage were obtained for 10 damaged vehicles available