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The mean selling price (in $ thousands) of the homes was computed earlier to be $221.10, with a standard deviation of $47.11. Use the normal distribution to estimate the percent of homes selling for more than $280.00.
Describe the difference between sample and a sampling distribution. Your reply must be in complete sentences and you may use sketches to help you.
Conditional and compound probabilities.The table below gives the distribution of blood types by gender in a group of 1000 individuals.
Make two different Factor Fireworks for 64 and 84. Write an equation that shows 64 as a product of prime numbers. Then use the equation to help find 54/16.
At the .01 level of significance, do these data support the conclusion that the ferritin distribution in elderly men has a smaller variance than in younger men?
Does this data provide evidence at the .05 significance level that there is a difference in the proportion of humorous ads in British versus American trade magazines? Please show work.
The company sells lawnmowers for $895 each. The variable cost per lawnmower is $520. The company's monthly fixed costs are $84,500.
Conduct the standard hypothesis test procedure and answer the following: What is the null hypothesis? What is the alternate hypothesis?
A certain researcher thinks that the proportion of women who say that female bosses are harshly critical is greater than the proportion of men.
A bag contains 4 chips of which one is red, one is blue, one is green, and one is yellow. A chip is then selected at random from a bag and then replaced in the bag.
Conduct a 3-period moving average, an exponential smoothing forecasting using an alpha of .25, and a seasonal forecast with 3 seasons.
1) The mean of the twenty male IQ scores is 115. Test the hypothesis that the mean of female IQ scores is less than 115. Note: This test is not comparing the mean IQ of females to that of males, it is simply using 115 as a comparison value. In the..
Perform an appropriate hypothesis test, showing the necessary calculations and/or explaining the process used to obtain the results.
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