Homework help!!

Question 12

' res to compare the given values. nt awards ceremony, the age of the winner for best actor was 37 and the age of the winner for best actress was 58. For all best actors, the mean e s 46.6 years and the standard deviation is 7.2 years. For all best actresses, the mean age is 34.6 years and the standard deviation is 12.1 years. All'ages' are determined at the time of the awards ceremony.) Relative to their genders, who had the more extreme age when winning the award, the 'ctor or the actress? Explain. (u. e the z score for the actor is Z = and the z score for the actress is Z = , the V' had the more extreme age. (Round to two decimal places.) The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of 98.06"F and a standard deviation of 0.58 F. Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of healthy adults with body temperatures within 3 standard deviations of the mean, or between 96.32 F and 99.80 F? b. What is the approximate percentage of healthy adults with body temperatures between 97.48 F and 98.64F? a. Approximately % of healthy adults in this group have body temperatures within 3 standard deviations of the mean, or between 96.32 F and 99.80* F. (Type an integer or a decimal. Do not round.) b. Approximately |% of healthy adults in this group have body temperatures between 97.48 F and 98.64"F. (Type an integer or a decimal. Do not round.) NextW Listed below are the measured radiation rates in kg corresponding to these cell phones: iPhone 7, Google Pixel, Samsung Galaxy S8, OnePlus 5, Motorola VE465, and LG G3. The data are from the Federal Communications Commission. Find the range, variance, and standard deviation for the given sample data. Are any of the resulting statistics helpful in selecting a cell phone for purchase? 1.38 0.93 1.52 1.37 1.09 0.48 Are any of the resulting statistics helpful in selecting a cell phone for purchase? O A. The minimum radiation would be a particularly helpful statistic, but none of these statistics is helpful for selecting a cell phone for purchase. O B. The mean radiation would be a particularly helpful statistic, but none of these statistics is helpful for selecting a cell phone for purchase. O C. The variance or standard deviation are helpful for selecting a cell phone for purchase because the spread of the data is useful. O) D. The range is helpful for selecting a cell phone for purchase because the spread of the data is useful. NextResearchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 78.6 Mbps. The complete list of 50 data speeds has a mean of x = 15.85 Mbps and a standard deviation of s = 35.24 Mbps. a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between - 2 and 2 to be neither significantly low nor significantly high, is the carrier's highest data speed significant? a. The difference is Mbps. (Type an integer or a decimal. Do not round.) b. The difference is standard deviations. (Round to two decimal places as needed.) NextW Listed below are the measured radiation rates in kg corresponding to these cell phones: iPhone 7, Google Pixel, Samsung Galaxy S8, OnePlus 5, Motorola VE465, and LG G3. The data are from the Federal Communications Commission. Find the range, variance, and standard deviation for the given sample data. Are any of the resulting statistics helpful in selecting a cell phone for purchase? 1.38 0.93 1.52 1.37 1.09 0.48 The range is (Type an integer or decimal rounded to three decimal places as needed.) The variance is (Type an integer or decimal rounded to three decimal places as needed.) The standard deviation is Next