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The following data relate the mother's age and the birthweight (in grams) of her child.
Birthweight
Maternal Age
Less Than 2,500 Grams
More Than 2,500 Grams
20 years or less
10
40
Greater than 20
15
135
Test the hypothesis that the baby's birthweight is independent of the mother's age.
Fair die is rolled 10 times. Determine the probability that the odd number (1, 3 or 5) will occur less than 4 times?
for the following find the appropriate 95 confidence interval for the corresponding population proportiona sample size
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Given the following raw scores, calculate the following values: Range, Variance and Standard Deviation, show your calculations: Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
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Construct a 99 percent confidence interval for the true mean diameter of a nickel. (c) Discuss any assumptions that are needed. (d) What sample size would ensure an error of ± 0.0005 inches with 99 percent confidence?
the manager of a supermarket found that 72 of the shoppers who taste a free sample of a food item will buy the item.
1) If sample mean plots look essentially parallel, we can intuitively conclude there is an interaction between the two factors.
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