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0 Question 5 B 0/1 pt '0 3 8 97 6) Details For a standard normal distribution, find: P(z > c) = 0.1402 Find c
0 Question 5 B 0/1 pt '0 3 8 97 6) Details For a standard normal distribution, find: P(z > c) = 0.1402 Find c rounded to two decimal places. 0 Question 18 E.' 0/1 pt '0 3 8 97 (9 Details A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 195.3-cm and a standard deviation of 2-cm. Find the probability that the length of a randomly selected steel rod is greater than 199.5-cm. P(X >199.5-cm}= Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact :- scores or z-scores rounded to 3 decimal places are accepted. 0 Question 7 B 0/1 pt '0 3 Z 98 0 Details A particular fruit's weights are normally distributed, with a mean of 570 grams and a standard deviation of 39 grams. If you pick 17 fruits at random, then 18% of the time, their mean weight will be greater than how many grams? Give your answer to the nearest gram. :1 Question Help: El Video Q Written Example Submit Question 0 Question 15 E 0/1 pt '0 3 8 98 G Details Let X represent the full height of a certain species of tree. Assume that X has a normal probability distribution with mean 142.6 ft and standard deviation 5.4 ft. You intend to measure a random sample of n = 56 trees. The bell curve below represents the distibution of these sample means. The scale on the horizontal axis is the standard error of the sampling distribution. Complete the indicated boxes, correct to two decimal places. NOTE: Find values that are TWO standarard deviations above and below the mean. "E HI II 3. || Submit Question 0 Question 20 E 0/1 pt '0 3 23 98 (9 Details A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.7 years, and standard deviation of 0.9 years. If 14 items are picked at random, 1% of the time their mean life will be less than how many years? Give your answer to one decimal place. Submit Question 0 Question 21 B 011 pt '0 3 23 98 (9 Details A particular fruit's weights are normally distributed, with a mean of 656 grams and a standard deviation of 13 grams. If you pick 28 fruits at random, then 20% of the time, their mean weight will be greater than how many grams? Give your answer to the nearest gram. Submit
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