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Q1) State Department of Weights and Measures is responsible for being sure that commercial weighing and measuring devices, like scales, are correct so customers and businesses are not cheated. Periodically, employees of department go to businesses and test their scales. For instance, a dairy bottles milk in 1-gallon containers. Assume that if filling process is working correctly, mean volume of all gallon containers is 1.00 gallon with standard deviation equal to 0.10 gallons. Based on this information, if department employee chooses a random sample of n = 9 containers, determine the probability that mean volume for sample will be greater than 1.01 gallons?
i) 0.3821
ii) 0.1179
iii) 0.6179
iv) 0.2358
Q2) In the application to evaluate mean number of miles that downtown employees commute to work roundtrip each day, following information is given:
n = 20
If desired confidence level is 95 percent, suitable critical value is:
a) z = 1.96.
b) t = 2.093.
c) t = 2.086.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
A better case can be made that observation 13 (Los Arboles) is an outlier. Describe what this means in plain terms.
Find out the Optimum solution using the given data. Consider the following linear programming problem. Illustrate what is the optimum solution to this problem?
You will investigate four different scenarios of population growth also decline in this town. Graph the model as well as investigate it by four different growth models.
Use the list of random digits below to assign 4 men and 2 women to the shark fin treatment. Read the table from left to right, first selecting the 4 men and then the 2 women. Use the numerical labels given in the chart to the names.
What is the possibility that for a arbitrarily selected customer the service time could exceed 3 minutes?
Find out the mean to the nearest whole number, for the following list of numbers: 20, 43, 67, 52, 67, 44, 62, 90, 21, 19, 15
2 to every even-numbered card, with aces being 1s. Determine the frequencies of 0, 1, and 2. Use SPSS to get the value of test statistic and p-value.
One approach would be to contact every psychology graduate student you know and ask them to fill out a questionnaire about it.
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop. Check the normality assumption.
Calculate (rounded to the nearest tenth) The correlation between IQ and Anxiety r =??
Florida State University administers a mathematics placement test to students where they 1st enter the university.
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