Mathematics, 25.06.2020 02:01 Panthers23
Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 172 oz. with a standard deviation of 8 oz. He wonders what percent of the vegetable boxes he has grouped for sale will have a weight less than 164 oz. Carl calculates the z-score corresponding to the weight 164 oz. Using the table (column .00), Carl sees the area associated with this z-score is 0. Carl rounds this value to the nearest hundredth or 0. Now, Carl subtracts 0.50 - 0.34 = 0. or %.
Answers: 3
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What is the value of x in the following equation? -3x-2=2x+8
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Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determin...
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