True or False: The fact that the sample means are less variable than the population data can be observed from the standard error of the mean. The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with .png”> = 110 grams and .png”> = 25 grams. A sample of 25 vitamins is to be selected. What is the probability that the sample mean will be between 100 and 120 grams? The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with .png”> = 110 grams and .png”> = 25 grams. A sample of 25 vitamins is to be selected. What is the probability that the sample mean will be less than 100 grams? The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with .png”> = 110 grams and .png”> = 25 grams. A sample of 25 vitamins is to be selected. What is the probability that the sample mean will be greater than 100 grams? The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with .png”> = 110 grams and .png”> = 25 grams. A sample of 25 vitamins is to be selected. So 95% of all sample means will be greater than how many grams? The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with .png”> = 110 grams and .png”> = 25 grams. A sample of 25 vitamins is to be selected. So the middle 70% of all sample means will fall between what two values? The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes. A random sample of 16 cars is selected. What would you expect the standard error of the mean to be? The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes. A random sample of 16 cars is selected. What is the probability that the sample mean is between 45 and 52 minutes? The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes. A random sample of 16 cars is selected. What is the probability that the sample mean will be between 39 and 48 minutes? The amount of time required for an oil and filter change on an automobile is normally distributed with a mean of 45 minutes and a standard deviation of 10 minutes. A random sample of 16 cars is selected. So 95% of all sample means will fall between what two values?