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Question 1 - One sample test on optimism Are a certain sampled population of women in a poor urban setting as optimistic as women nationally? Click the link below to download Week 2
Discussion Question 1. The data contained was collected from 1,000 women in the area around downtown Philadelphia. Run a one sample t test on the women's state of optimism given that the National norm on this test for all women is 45.1. Week 2 Discussion Question 1 Data - Excel (58.1 KB) State the null and alternative hypothesis. What is the value of t for the analysis? Is this value significant and at what level? Why? What are the CI values and what do they mean here?
Using the notation of this section, let U be the number of observed values of X in the smallest d items of the combined sample of m + n items.
A box contains 13 yellow, 29 white and 20 red chips. Two chips are randomly drawn from the box, without replacement.
a government testing agency studies aspirin capsules to see if customers are getting cheated with capsules that contain
Suppose that the joint distribution of X and Y is uniform over the region in the xy-plane bounded by the four lines x = - 1, x-I, Y = x + I
At an a=0.05, can you support the company's claim using the test statistic?
Standard Chartered Hong Kong introduces Staff Community Programme and Employee Volunteering Policy. Staff voluntarily establish an employee-led committee that o
(a) Use Excel to develop a time series model that Hillstone can use to prepare seasonally adjusted trend forecasts of passenger vehicle tyre sales on a quarterly basis. (b) Prepare seasonally adjusted trend forecast estimates for 2012 and 2013 on a..
Given the regression equation Y = 2.6 + .02X the constant or intercept is: (a) .02X (b) 2.6 above zero on the X axis
Use Chebyshev's theorem to determine the percentage of the data within each of the following ranges (to the nearest whole number)
An electronics store provides the following data regarding the number of advertisements and the number of TV's sold during an eight week period. Develop a separate scatter diagram for each set of data (Week # vs. # of Advertisements and Week# vs. # ..
Does a cronbach alpha result greater than 0.9 indicate any statistical problem such as issues of duplication in a questionnaire or test items?
In order not to run out of stock before the receipt of a new order, at what inventory level should the firm place an order? That is, what is the reorder point?
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