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The faculty senate at a large university wanted to know what proportion of the students thought foreign language classes should be required for everyone. The statistics department offered to cooperate in conducting a survey, and a simple random sample of 500 students was selected from all the students enrolled in statistics classes. A survey form was sent by email to these 500 students. In this case, the population of interest is: A. all the students at the university. B. all the students enrolled in a statistics class. C. the 500 students who got the email survey. D. the students who responded to the email survey. E. all the students who think that foreign language classes should be required for everyone.
suppose you know that the distribution of sample proportions of the residents of one town over 70 years old in samples
suppose thatnbspfnbspx nbspe-x-7.4nbspfor 7.4 ltnbspxnbspandnbspfnbspx 0 fornbspxnbsp? 7.4. determine the following
How many students weigh less than 128 pounds? b) how many students weigh more than 165 pounds? c)how many students weigh between 135 and 165 pounds?
what is the variance standard deviationrange and coefficient of variation?36.20 31.15 35.05 40.20 33.75
At 1 excavation site 8641 pot shards have been found that have not presently been cleaned also identified. Define the probability.
question a company sells packets of biscuits that they claim on average contains at least 20 g biscuits in each
A study to get a quick idea of the medical acceptability of a new aspirin substitute which cannot be dispensed over the counter without prescription.
a simple random sample of 29 students enrolled in graduate programs was selected and the age of each student when they
A baseball player hits 59 home runs during a season with 161 games. What is the empirical probability that the player would hit at least one home run during any given game of the season?
Which of the following is not true about the student's t distribution? It has more area in the tails and less in the center than does the normal distribution.
What is the critical F value for a sample of four observations in the numerator and seven in the denominator? Use a one-tailed test and the .01 significance level.
if the endpoints of a confidence interval for the difference between a pair of treatment means are both positive
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