Use the Empirical Rule to establish an interval that includes about 95% of the observations.

Suppose that the distribution of resting pulse rates for 4-year-olds is bell-shaped with a mean of 108 beats per minute and a standard deviation of 8 beats per minute. Use the Empirical Rule to complete each sentence. (In each sentence enter the smaller number in the first answer blank and the larger number in the second answer blank.)(a)About 68% of 4-year-olds have a resting pulse rate between and beats per minute.(b)About 95% of 4-year-olds have a resting pulse rate between and beats per minute.(c)About 99.7% of 4-year-olds have a resting pulse rate between and beats per minute.

Suppose that we have a data set with a mean (µ) of 5 and a standard deviation (σ) of 4.Using the empirical rule, estimate how likely it is that a sample statistic picked at random will be below 5.Group of answer choices50%68%95%99.7%

How many observations should a stopwatch time-study analyst plan for in a task that has a standard deviation of 1.26 minutes per piece if the goal is to estimate the mean time per piece to within 0.1 minute with a confidence of 99.0 percent? (Round the intermediate calculations to 2 decimal places. Round the final answer to the next whole number.)

According to the empirical rule for normally distributed data, what percent of data would fall within two standard deviations of the mean?A13.5 %

Use the Empirical Rule to answer the question.In a normal distribution, what percent of the data lie in the following?(a)within 2 standard deviations of the mean %(b)more than 1 standard deviation above the mean %(c)between 1 standard deviation below the mean and 2 standard deviations above the mean