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Below are two data sets. Using descriptive statistics, discuss the two data sets in relation to each other. Both data sets come from an operation where potato chips are being placed in small connivance store bags that are to hold 6.0 oz.
Data from Machine #1 Data from Machine #2
6.10 6.40
5.90 5.60
6.10 6.10
5.80 5.80
6.20 6.70
5.90 5.40
6.00 6.00
6.00 6.40
6.30 6.40
5.80 5.00
5.90 5.20
6.10 4.90
6.30 4.80
For a sample with standard deviation of 10, a score of X = 44 corresponds to z-score of 0.50. Based on this info, determine the sample mean?
Compare the margin of error for the interval estimates in parts (a), (b), and (c). The margin of error (Increases or Decreases) as p-bar gets smaller.
Do the data indicate that the sleeping pill is effective at a 1% level of significance?
Given same values n=20, p=0.6, and x=17, calculate probability of x successes in n independent trails of experiment.
What does the standard deviation mean? Interpret the standard deviation relative to the average or mean?
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 class has 13 women and 18 men. If student if selected randomly, determine the probability student is a woman?
Developing project network using AOA that determines completion times.
Determine a 95% confidence interval for true mean cost to repair this type of car.
In fitting the simple linear regression model Yi ~ N (α + β xi, σ 2 ) to the following data:
Suppose that the mean of the annual return for common stocks from 2000 to 2012 was 8.5%, and the standard deviation of the annual return was 25.2%.
Number of rescue calls received by rescue squad in city follows a Poisson distribution with mu = 2.83 per day. Squad can handle at most four calls a day. Determine the probability that squad will be able to handle all calls on a particular day?
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