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In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.
1) the top 10% receive A2) the next 20% receive B3) the middle 40%receive C4) the next 20% receive D5) the bottom 10% receive F.
Find the lowest score on the final exam that would qualify a student for an (A, B, C, D)
Within each of your current careers/ jobs, there are sets of data that can be analyzed. For example, a teacher can use a set of test scores, a dietician can analyze a set of patient weights and correlate them to incidences of diabetes, and a sales..
Produce the summary output and give the estimated equation for your chosen model and find a suitable regression model to predict y2 using x2 as an explanatory variable. Comment on the output used and justify your choice of model.
Solve the problem: According to police sources a car with a certain protection system will be recovered 94% of the time. Find the probability that 4 of 8 stolen cars will be recovered.
Construct a 99% confidence interval estimate of the population proportion of accounts that would purchase the additional line if the handset were free.
In a study of the consumer's view of the economy, the probability that a consumer would buy a house during the year was 0.0013, and the probability that the consumer would buy a car during the year was 0.198. There was also a 0.0100 probability t..
Five test vehicles of each kind were crashed, with results given below. Research question: Are mean crash damages the same for these 3 vehicles?
A grab bag comprises 11 $1 prizes, 7 $5 prizes, and 2 $20 prizes. Three prizes are selected at random. Determine the probability which exactly two $20 prizes are chosen?
There are twelve months. Given the cohort of 100 which starts the program, about how many are left after twelve months?
Estimating the sample standard deviation using normal score - Find the sample standard deviation?
Generate a training sample of size 100 for each class, as well as a test sample of 5,000 per class. (Best to generate the centroids matrices per class once and store them).
Here is a two-way table showing enrollment data for full-time undergraduate students in U.S. colleges and universities. The entries are thousands of students:
Suppose a simple random sample of 30 days is selected for observation. What is the probability that the sample mean for the 30 days will be between 300 and 340 books?
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