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Question: A survey found that an American Family generates an average of 17.2 lb of glass garbage each year. Assume that the standard deviation of the distribution is 2.5 pounds. If a sample of 55 families is randomly selected, find the probability that the sample mean is
a.) between 12 and 18 lb?
b.) below 16 lb?
c.) Above 18lb?
These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.
Then use ogive to estimate median and first and third quartiles. Also utilize it to reply following question: What percent of 60 mutual fund loads are less than 75.
Your bakery produces loaves of bread with '1 pound' written on the label. Here are weights of randomly sampled loaves from today's production:
a random sample of 16 students from the student body of a large university had an average age of 25 years and a sample
List two socioeconomic factors that would be appropriate to use for strati?cation. Explain how each factor would relate to the consumption of alcohol in general and of wine in particular.
Which regression models explain less than 50% of the observed variation between the actual values of the dependent variable and the mean value of the dependent variable values for the sample data set?
The report "Audience Insights: Communicating to Teens (Aged 12-17)" (www.cdc.gov, 2009) de- scribed teens' attitudes about traditional media, such as TV, movies, and newspapers.
the number of monthly breakdowns of a computer is a random variable having poisson distribution with lambda1.8. use
Develop a Venn diagram to illustrate the data, hence use it to find the probability that a worker picked at random: (1) Does not speaker English, (2) Speak neither of the languages, (3) Speak French and Russian but not English.
A school tracks the absences of pupils as part of a flu surveillance system. Regular reporting of absences among 25 students in grade 1 are taken, and based on these data, the long-run proportion of absences under normal conditions is estimated to..
How would figure out a 90% and 95% confidence interval for the below informaion? What would be the formula? Can I figure this out in Excel or Megastat? How would I do that?
a multiple choice test consists of 60 questions. each question has 4 possible answers of which one is correct. if
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