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Between 4 and 9 PM, cars place orders at the drive through window of the Tiki Takeout restaurant once every 5 minutes. The worker who processes those orders gets a ten minute break every two hours.
a) What is the probability of receiving 20 drive through orders in one hour?
b) What is the probability of there being a ten minute gap between orders?
c) Calculate the probability of receiving fewer than 2 orders in ten minutes.
A manufacturer wants to increase the absorption capacity of a sponge. Based on past data, the average sponge could absorb 3.5 ounces.
In other words, could you generate two sets of random numbers (of length, say, 50) and set out the calculations in detail to determine whether the random variables are independent using chi-squared.
What is the best estimate of the average tread life in miles for the entire population of these tires?
1.assuming the population is large which sample size will give the smallest standard deviation to the statistic?a.n
Florida State University administers a mathematics placement test to students where they 1st enter the university.
The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit. At the 0.05 level, is there a difference in among the means?
The average number of miles that 90 truckers drove in a day was 540.0 with a standard deviation of 40 miles. What is the 99% confidence interval of the true mean number of miles driven by all truckers?
Compare two models. Model #1 has an r-squared of .55 and an adjusted r-squared of .50. Model #2 has an r-squared of .52 and an adjusted r-squared of .51. Given this information, what model should you use?
Determine the 90% confidence interval for average days worked by employees in all payroll departments?
For the following population of N=10 scores 14,6,8,3,9,12,1,6. Draw the histogram showing population distribution. Locate value of population mean in your sketch and make estimate of standard deviation.
A sample of 25 students enrolled in the university indicates that X (bar) = $315.4 and s = $43.20.
The file tax contains the quarterly sales tax receipts (in thousands of dollars) submitted to the comptroller of the village fair lake for the period of ending March 2011 by all 50 Business establishments in that locale
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