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True or False? The correlation coefficient r can only take on a value between -1 and 1. O This is a true statement O This is a false statementFor each menu item at a fast food restaurant, fat content (in grams) and number of calories were recorded. Suppose we changed the units of fat from grams to ounces. Which of the following statements is correct about the correlation coefficient? O The new correlation coefficient would be smaller. O The correlation coefficient would be unchanged. O The correlation coefficient would increase by a factor of 2 O The correlation coefficient would become negative O You cannot use the correlation coefficient once the units of the data have been changed.Approximately what proportion of normally distributed data are between observations 2 standard deviations less than the mean and one standard deviation above the mean? (Hint: draw a picture. It will help) 0 0.34 o 0.475 0 0.512 0 0.315 Suppose you are a manager of a local coffee shop and was interested to see how long customers had to wait for their coffee order. After collect data for one month. you found that wait times at your shop were approximately normally distribution with a mean wait time of 5 minutes and a standard deviation of 1.2 minutes. Using,r this information. what is the approximate percent of customers that have to wait between 5 and 7.4 minutes for their order? 0 34% O 81.5% o 68% O 47.5% Suppose that total carbohydrate intake in 12- to 14-year-old boys is normally distributed with a mean of 120 g/1000 calories and a standard deviation of 20 g/1000 calories. Approximately what percent of boys in this age range have carbohydrate intake less than 80 g/1000 calories? O 16% O 2.5% O 50% O 18.65%