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Questions Posted by StatisticsSolver
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Stats Need one or two steps pls
The manager of a company believed that her company's profits were following an exponential trend. She used Microsoft Excel to obtain a prediction equation for the logarithm (base 10) of profits:...
|Feb. 03, 2009||$0.25||Closed, closed||Mathematics||Statistics||
An econometrician is interested in evaluating the relation of demand for building materials to mortgage rates in Los Angeles and San Francisco. He believes that the appropriate model is: Y = 10 + 5X1+...
|Feb. 03, 2009||$1.00||Closed, closed||Mathematics||Probability||
probability!!!very urgent ASAP pls
46. Thirty percent of the population in a southwestern community are Spanish-speaking Americans. A Spanish-speaking person is accused of killing a non-Spanish-speaking American. Of the first 12...
|Feb. 01, 2009||$1.00||Closed, closed||Mathematics||Probability||
Two fair dice are rolled. Let X equal the product of the 2 dice. Compute P(X = i) for i = 1; 2,,,.
|Jan. 27, 2009||$0.25||Closed, closed||Mathematics||Statistics||
Interpret the meaning of a .90 power value.
How many total subjects (N) would be needed to obtain a power of .90? Would you have expected a required N of this size? Why or why not? Interpret the meaning of a .90 power value. N value which i...
|Jan. 23, 2009||$1.00||Closed, closed||Mathematics||Statistics||
Would you expect a large, medium, or small effect when examining the differences between gender on marks ? Why? Mean difference = 3.0909 Std dev = 12 i need brief explanation for the reason.. why????
|Jan. 23, 2009||$10.00||Closed, closed||Mathematics||Statistics||
Question # 3: For the items represented below, give the difficulty value z for the corrected and uncorrected proportions, taking into account the number of alternative responses in each case. ...
|Jan. 14, 2009|