The mean weight of a box of cereal filled by a machine is 17 ounces, with a standard deviation of 0.2 ounce. If the weights of all the boxes filled by the machine are normally distributed, what percent of the boxes will weigh the following amounts? (Round the answers to two decimal places.) (a) less than 16.7 ounces   % (b) between 16.9 and 17.1 ounce

Given the following data set for the amounts of sugar in a sample of 8 cereals (measured in grams):   12   8     4   9   16   8    6   10 Compute the Standard Deviation for the amount of sugar in this sample of cereals.  You can use the functions built into your calculator or use the formula to compute this result. Round your final answer to one decimal place (the nearest tenth).   ? =  _______ grams of sugar

Identify the symbols used for each of the following: (a) sample standard deviation; (b) population standard deviation; (c) sample variance; (d) population variance. If sample data consist of weights measured in grams, what units are used for these statistics and parameter a. The symbol for sample standard deviation is b. The symbol for population standard deviation is c. The symbol for sample variance is d. The symbol for population variance is If sample data consist of weights measured in grams, then correctly complete the following sentences. a. The unit for sample standard deviation would be b. The unit for population standard deviation would be C. The unit for sample variance would be ▼ d. The unit for population variance would be ▼ C

The blood pressure in millimeters was measured for a large sample of people. The average pressure is 140 mm, and the SD of the measurements is 20 mm. The histogram looks reasonably like a normal curv Use the normal curve to estimate the following percentages. Choose the answer that is closest to being correct. A 19.1% B 30.9% C 38.2% D 69.1% E 68.27% A The percentage of people with blood pressure between 130 and 150 mm. B The percentage of people with blood pressure between 140 and 150 mm. D The percentage of people with blood pressure over 150 mm.