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A study conducted by a research program found the 39.5% of college freshmen spent six or more hours a week studying or doing homework during their senior year in highschool. To verify these results, a random sample of 200 freshman was asked how many hours they studied a week during their senior year in high school. A total of 88 students from this sample responded what they studied six or more hours a week. Which of the following statements is correct?
let x equal to the grade of a student in a stat course. suppose that x is nu 100. using the traditional method of
samples of two different types of automobiles were selected and the actual speed for each car was determined when the
Suppose that patrons of a restaurant were asked whether they preferred beer or whether they preferred wine. 70% said that they preferred beer. 60% of the patrons were male. 80% of the males preferred beer.
1.suppose that you are a student worker in the statistics department and they agree to pay you using the random pay
1.an experiment was performed to investigate lifetime of a component exposed to high heat. three different oven types
in basketball a players free throws percentage ft is expressed as a number between 0 and 1 which represents the
Find the Celsius temperature(to the nearest degree when Fahrenheit temperature is 9 degrees by solving the equation 59= 9/5 C +32, where F is the Fahrenheit temperature (in degrees and C is the Celsius temperature.
an official from the downtown development authority claims that the percentage of local businesses that have had some
currently available medication is -9.4 minutes with a standard deviation of 2.8 minutes. Construct a 95% CI for the mean difference in times between the experimental and currently available medication.
undergrad students in a section of stat 225 are classified as lower classmen freshman and sophomores and upper classmen
There are 25 students in a probability class. Assume that there are 365 days in each year, and that the birthrate is constant throughout the year.
based on faa estimates the average age of the fleets of the 10 largest u.s. commercial passenger carriers is 13.4 years
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