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The Web-based company Henrietta Balloons has a goal of processing 96% of its orders on the same day they are received.
If 95 out of the next 100 orders were processed on the same day, would this prove that they are exceeding their goal, using a 90% confidence level?
A. Choose the Hypothesis
B. Specify the Decision Rule
C. Calculate the Test Statistic
D. Make the Decision
E. Give an interpretation of the Decision
F. P-value Method
1. Calculate the P-value, what is it?
2. Does that P-value support the Decision in Part D?
An investment counselor would like to meet with 12 of his clients on Monday, but he has time for only 8 appointments. How many different combinations of the clients could be considered for inclusion into his limited schedule for that day?
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? Compute the value of the test statistic.
Descriptive statistic results from quarterly sales figures over a 18 year period (73 qtr) are below. Please interpret the standard Deviation and Median in terms of sales results,
Determine the covariance matrix for values of this process at time t=1,2,3,4. Determine its inverse(numerically) and write formula for pdf of corresponding random vector.
In a recent study of incomes in Allegheny county in Pennsylvania it was found that distribution of family incomes is skew to the right. what can we say about the relationship between mean and median?
Let the following all-integer linear program: Max 1x1 + 1x2, s.t. 4x1 + 6x2
To test the hypothesis that students who finish an exam first get better grades, Professor Barker kept track of the order in which papers were handed in.
Consider binomial distribution with 14 identical trials, and probability of success of 0.4.
Is it true that one of the major assumptions underlying ANOVA is that all the populations being studied in the experiment have the SAME distribution?
A sample of 12 homes sold last week in St Paul, Minnesota, is selected. The results are shown below and create a scatterplot. Insert the trendline into the graph and show the regression equation.
A large university says the mean number of classroom hours per week for full-time faculty is more than 9. A random sample of the number of classroom hours for full-time faculty for one week is listed.
Construct a time series plot. What type of pattern exists in the data? Compute the exponential smoothing forecasts for a = .2.
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