The true length of boards cut at a mill with a listed length of 10 feet is normally distributed with a mean of 123 inches and a standard deviation of 1 inch. What proportion of the boards will be between 121 and 124 inches?
What will be an ideal response?
Q. 2The mean of the sampling distribution of a sample proportion is the population proportion, .
Indicate whether the statement is true or false
Q. 3The amount of tea leaves in a can from a particular production line is normally distributed with = 110 grams and = 25 grams. Approximately 83 of the can will have at least how many grams of tea leaves?
What will be an ideal response?
Q. 4The sample proportion is an unbiased estimate of the population proportion.
Indicate whether the statement is true or false
Q. 5The amount of tea leaves in a can from a particular production line is normally distributed with = 110 grams and = 25 grams. What is the probability that a randomly selected can will contain less than 100 grams or more than 120 grams of tea leaves?
What will be an ideal response?
Q. 6The sample mean is an unbiased estimate of the population mean.
Indicate whether the statement is true or false
Q. 7The amount of tea leaves in a can from a particular production line is normally distributed with = 110 grams and = 25 grams. What is the probability that a randomly selected can will contain less than 100 grams of tea leaves?
What will be an ideal response?
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