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Question: Use the program Binomial Probabilities to find the probability that, in 100 tosses of a fair coin, the number of heads that turns up lies between 35 and 65, between 40 and 60, and between 45 and 55.
What is the correlation, and why is it so high? Since all of the guessed weights were higher than the actual weights, does that influence the correlation at all?
Standardize the value according to the given average and SD - unstandardize the value according to the given average and SD
A cable manufacturer has historically averaged 2.6 flaws per 1000 meters length of wire production.
A market research company surveyed consumers to determine their ranked preferences of energy drinks among the brands Monster, Red Bull, and Rockstar.
A random sample of 51 observations was selected from a normally distributed population. The sample mean was = 88.6, and the sample variance was s2 = 38.2.
let xij gallons of component i used in gasoline j. assume that we have two components and two types of gasoline.
We desire to test at 0.05 level of significance whether modification increases the life of battery. What is our decision rule? Reject null hypothesis if calculated t is less than 1.96.
according to the statistical abstract of the united states there are 31.1 millions one-person households 38.6 millions
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
What are the theoretical considerations of hypothesis testing and why are these considerations important when conducting research studies?
Assume you have the following data Ho mu = 2,450, s = 400, n = 100, and xbar = 2,300. Conduct a hypothesis test at the .01 significance level.
How to drive the car is 9.5 hours with a standard deviation of 1.5 hours. Test the managerâ??s claim at the 1% significance level. Determine the critical values of the test statistic.
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