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The weights of the contents of cereal boxes are normally distributed, with a mean weight of 12 ounces and a standard deviation of 0.05 ounce. The weights of four cereal boxes selected at random are 12.01 ounces, 11.92 ounces, 12.12 ounces, and 11.99 ounces. Are any of these values unusual? Why or why not?
What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
At the end of class, our teacher said "If you're perceptive, you may have noticed that a regression analysis produced by the Excel Data Analysis ToolPak contains an ANOVA table.
The average price of a personal computer is 949 assuming that the prices are normally distributed with a standard deviation of 100 what is the price that corresponds to the least expensive 10%.
Compute cumulative probabilities for these numbers in second column. Then create a histogram illustrating data distribution. Using generated Normal probability table, determine probability of Pr(X
For the most recent year available the mean annual cost to attend a private university in the US was $26,889. Assume the distribution of annual costs follows a normal probability distribution and the standard deviation is $4,500. 95% of all studen..
I did a study correlating net profit per location with expenditures on an in-house promotion, and got a correlation of about .15, and that was received very well.
Carry out an ANOVA and describe in detail in a BPS-formatted Results section:
The average on an exam is 75 and the standard deviation is 17. If the instructor assigned grades based on the Normal distribution what percentage of students will make A's and what percentage will make B;s in teh exam. Assume standard cut-off for ..
What is the probability of drawing one or more aces after discarding 5, 7, 8, and 9
Assume that in a hypothesis test with null hypothesis H 0 : μ = 14.0 at a = 0.05, that a value of 13.0 for the sample mean results in the null hypothesis not being rejected. That corresponds to a confidence interval result of:
Determine the probability that gas tank's capacity is above 15.25 gallons?
Suppose you want to test the hypothesis that students who study one week before score different from students who study the night before. A 2 sample t-test test is run based on your data and a p-value is calculated to be 0.0219. What is the approp..
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