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on average the parts from a supplier have a mean of 975 inches and a standard deviation of 122 inches find the
a process is normally distributed with a mean of 104 rotations per minute and a standard deviation of 82 rotations per
a puck company wants to sponsor the players with the 10 quickest goals in hockey games the times of first goals are
a puck company wants to sponsor the players with the 20 quickest goals in hockey games the times of first goals are
the blenders produced by a company have a normally distributed life span with a mean of 82 years and a standard
the random variablenbspxnbsptakes on the values 5 20 30 and 200nbspwith probabilites 060 030 008 and 002
if we are interested in job satisfactionname a variable that correlates with job satisfaction but we do not have
a laboratory worker finds that the 3 of his blood samples test positive for the hiv virus in a random sample of 70
a bottle of water is supposed to have 12 ounces the bottling company has determined that 98 of bottles have the correct
the probability of someone ordering the daily special is 52 if the restaurant expected 96 people for lunch how many
fifty-seven percent of employees make judgements about their co-workers based on the cleanliness of their desk you
recent test scores on the law school admission test lsat are normally distributed with a mean of 1624 and a standard
sixty-seven percent of adults have looked at their credit score in the past six months if you select 31 customers what
a professor records the following final exam scores 68 6 m sd students scoring in the top 18 get an a what is the
a researcher records the following body mass index bmi scores for a group of participants 291 13 m sd participants who
1 prince georges county public schools wants to access the effectiveness of its new 1st grade reading program ten 1st
a researcher records the following number of birdcalls made during an experimental session with robins 84 09 m sd
a researcher determines that students study an average of 60 15 m sd minutes per week assuming these data are normally
how would i calculate this anystate auto insurance company took a random sample of 382 insurance claims paid out during
how would i calculate this santa fe black-on-white is a type of pottery commonly found at archaeological excavations at
what is the 99 confidence interval for a sample of 52 seat belts that have a mean length of 856 inches long and a
according to a pew research center poll 22 of adult americans have contributed to an online fundraising project a
in a sample of 41 temperature readings taken from the freezer of a restaurant the mean is 297 degrees and the standard
consider the probability distribution shown belowx 0 1 2 px 065 030 005compute the expected value of the
a researcher reports that the size of an effect in population a is d 010 and the effect size in population b is d 034