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Thomas is going to make an open-top box by cutting equal squares from the four corners of an 11 inch by 14 inch sheet of cardboard and folding up the sides. If the area of the base is to be 80 square inches, then what size square should be cut from each corner?
Explain in detail and give an original example of the four types of probability.
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
Determine the probability that no female are hired. Determine the mean and standard deviation of X.
Describe the shape of the distribution? what proportion of the players had no hits? how many players had 4 or fewer hits? what percentage of the players had one or fewer hits?
At the .05 significance level, is the number of units produced on the afternoon shift larger?
IQ scores but have been standardized so that complete sample has mean of M = 10 and standard deviation of s = 2. Compute mean and the standard deviation for the sample of n = 8 females and for sample of n = 8 males.
Provide the Null and Alternative Hypotheses testing statements for the following statement: There are only 24 hours in a day. What statistical tool would you now utilize to improve your business? Explain the Chi-Square Non-Parametric Testing Concept.
Find the probability of getting a queen and a spade.
Positive values correspond to students who gained weight and negative numbers correspond to students who lost weight. Is a weight fain of 15 pounds of (6.8) kilograms unusual?
Use suitable one or two sided test for null hypothesis of no difference in them then changes rating between groups at 0.10 significance level.
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
Set up hypothesis and two-tailed decision rule for right mean using 5% level of significance. Hypothesis for a two-tailed decision is?
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