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For the following questions, would the following be considered "significant" if its probability is less than or equal to 0.05?
a) Is it "significant" to get a 12 when a pair of dice is rolled?
b) Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?
Computing the probability values using normal distribution - Find the probability that a regular rat (without the supplement) would solve the maze with a score less than or equal to X = 24 errors?
If the loss of weight of customers at the end of their first month is normally distributed with a mean of 6.7lbs and a standard deviation of 0.81lbs
Setup the alternative hypothesis that will test the claim that the percentage of women preferring white wine is 25% higher than men.
All but one of the following statements contain a blunder. Which one does not contain a blunder
(A) At the 0.05 level of significance, use the six step critical value approach to hypothesis testing to try and prove that the 2004 proportion has increased. (B) Use the 5 step p-value approach. Interpret the meaning of the p value.
Decision making using the Transportation method.
Find out the Expected value of the perfect information for the given problem. Given the subsiquent cost tree, illustrate what is the expected outcome.
Given that Z is standard normal randam variable. Compute the value of Z if area between –Z and Z is 0.754:
let the number of trials be n = 3, and let the probability of success be p = 0.0228. Use a calculator to compare:
Is there a relationship between sales and newspaper advertising? Support your answer?
Find out which (t-, z- or neither) distribution is suitable Then if you can utilize either a t- or z- distribution, provide associated critical value (critical t- or z- score) from that distribution to reach given confidence level.
Use the population standard deviation along with the sample mean, S, and find a 92% confidence interval for the population mean. Is the true population mean contained in this interval?
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