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does a follow-up reminder increase the renewal rate on a magazine subscription a magazine sent out 760 subscription renewal notices without a
for a certain aptitude test it is known from past experience that the average score is 1000 and the standard deviation is 125 if the test is
this problem set introduces you to the use of spss for analyzing data with one iv and more than one dv to investigate comparison of means you will
suppose that the company currently has 180 units in stock and it will not be receiving any further shipments from its supplier for at least 3 weeks
what happens when we try the option for best subsets inside minitab for my good problem question click regression then best subsets list the
a coin is tossed until obtainning a head or tossing it up to three times whatever happens first if x represent the number of times that the coin is
the life span of a battery is normally distributed with a mean of 2500 hours and at percent of batteries have a life standard deviation of 50 hours
the computer anxiety rating scale cars measures an individuals level of computer anxiety on a scale from 20 no anxiety to 100 highest level of
problem 1 - what sample size is needed to obtain a 90 percent confidence interval for the mean protein content of meat if the estimate is to be
problem 1 - of a random sample of 600 trucks at a bridge 114 had bad signal lights construct a 95 percent confidence interval for the percentage of
1-state whetherbeach othe following true or false and explain whya a high negative correlation value for example p-95 means that the value of the
1 at your supermarket the typical shopper spends 1893 with a standard deviation of 1252 you are wondering what would happen in a typical morning hour
the evidence linking global warming to human activity-such as burning fossil fuels-is weak therefore human activity does not cause global
retired workers and disabled workers both receive social security benefits what information would we need to test the claim that the difference in
hamilton county judges try thousands of cases per year in an overwhelming majority of the cases disposed the verdict stands as rendered however some
the editor of a textbook company is trying to decide whether to publish a proposed business statistics textbook information on previous textbooks
based on our past history of winning bids on projects the probability of winning the next contract to build a school is 040 to build a hospital 030
i have an assignment coming up on july 2nd that consists of 15 tf 15 mc and 10 essay questions tf and mc dont require work to be shown but the essays
discovering statistics referring to the information from my first question as stated nielson media research reported that for the week ending july 11
question the associated press reports that the mean trading volume for equity and index options contracts was 36 million in july 2007 assume that the
the point of averages of a scatterplot of y against x is 14 1 the sd of x is 6 and the sd of y is 7 the decimal fraction of points in the
at a certain university 25 of students support the green party suppose we take samples of size 100 students and are interested in the population
the national center for education statistics reported that mean number of instructional computers per public school nationwide was 124 assume that
the mean number of shares traded on on the new york stock exchange in june 2004 was 24 billion per day assume that the distribution of shares traded
a national grocers magazine reports the typical shopper spends six minutes in line waiting to check out a sample of 16 shoppers at the local farmer