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"Why is the Normal Distribution so important to statistics?"
Hint 1: Do many real world situations tend to be normally distributed?
Hint 2: is the normal distribution used frequently in statistics texts?
Hint 3: Is the normal distribution (or its special case, the standard normal distribution) effective in characterizing situations and/or in helping managers make decisions?
The mean number of flaws per 100 m of material produced on a certain machine at Blanktown Fabrics is 2. If flaws occur randomly, find the probability that in 50 m of material there will be less than 2 flaws.
You're asked to determine whether the workers live in the community. Your personnel department provides the following table:
Why might driver be tempted not to use seat belt "just on this trip"?
At the .05 significance level, can she conclude that there is a difference in the mean amount of weight loss among the three diets?
The chi-square goodness of fit test can be used when we:
Note that under the exponential assumption, P(X>t) = exp(-t/theta). If t=5, use the result from (a) to find an approximate one-sided lower 95% confidence limit for theta.
Can you please describe what I need to do to complete this? I do not understand how to plot the figures within the spreadsheet or calculate them.
The manager of Sam's Food Mart guarantees that none of his cartons containing a dozen eggs will contain more than one bad egg, despite the fact that 4% of individual eggs are known to be bad. Define the random variable x to be the number of bad eg..
Prepare an ANOVA table and test the null hypothesis of no linear relationship between the two variables.
Explain the ANOVA output table values:
All but one of the following statements contain a blunder. Which one does not contain a blunder
What is the probability that a cereal would be high calorie, given that is low fiber? In other words, what is P (high calorie, given low fiber)?
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