A distribution of values is normal with a mean of 7.3 and a standard deviation of 67. Find P29, which is the score separating the bottom 29% from the top 71%. P29 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 7.3 and a standard deviation of 67.
Find P29, which is the score separating the bottom 29% from the top 71%.
P29 =
Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A company produces steel rods. The lengths of the steel rods are
Find the probability that the average length of a randomly selected bundle of steel rods is between 189.7-cm and 189.8-cm.
P(189.7-cm < M < 189.8-cm) =
Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
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