The brain volumes ​(cm3​) of 20 brains have a mean of 1095.2 cm3 and a standard deviation of 123.8 cm3. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such​ data, would a brain volume of 1332.8 cm3 be significantly​ high? Significantly low values are nothing cm3 or lower. ​(Type an integer or a decimal. Do not​ round.) Significantly high values are nothing cm3 or higher. ​(Type an integer or a decimal. Do not​ round.) Is 1332.8 cm3 significantly​ high?     A. ​No, because it is below the lower limit separating value.   B. No, because it is between the limits separating values.   C. Yes, because it is above the upper limit separating value.   D. ​Yes, because it is between the limits separating values.   E. ​No, because it is above the upper limit separating value.   F.

Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standard deviation o = 15. Find the probability that a randomly selected adult has an IQ between 84 and 116. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between 84 and 116 is (Type an integer or decimal rounded to four decimal places as needed.)

A group of adult males has foot lengths with a mean of 26.63 cm and a standard deviation of 1.32 cm. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is the adult male foot length of 29.8 cm significantly low or significantly​ high? Explain. Significantly low values are nothing cm or lower. ​(Type an integer or a decimal. Do not​ round.) Significantly high values are nothing cm or higher. ​(Type an integer or a decimal. Do not​ round.) Select the correct choice below and fill in the answer​ box(es) to complete your choice.   A. The adult male foot length of 29.8 cm is not significant because it is between nothing cm and nothing cm. ​(Type integers or decimals. Do not​ round.)   B. The adult male foot length of 29.8 cm is significantly low because it is less than nothing cm. ​(Type an integer or a decimal. Do not​ round.)   C. The adult male foot length of 29.8 cm is significantly high because it is…

Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.8 Mbps. The complete list of 50 data speeds has a mean of x= 16.56 Mbps. And a standard deviation of s= 35.08 Mbps. Convert the carriers highest data speed to a z score

A group of adult males has foot lengths with a mean of 27.75 cm and a standard deviation of 1.11 cm. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is the adult male foot length of 30.6 cm significantly low or significantly high? Explain. Significantly low values are cm or lower. (Type an integer or a decimal. Do not round.) Significantly high values are cm or higher. (Type an integer or a decimal. Do not round.) Select the correct choice below and fill in the answer box(es) to complete your choice. The adult male foot length of 30.6 cm is significantly high because it is greater than O A. (Type an integer or a decimal. Do not round.) cm. The adult male foot length of 30.6 cm is significantly low because it is less than О в. (Type an integer or a decimal. Do not round.) cm. The adult male foot length of 30.6 cm is not significant because it is between OC. cm and cm. (Type integers or decimals. Do not round.)

For a data set of the pulse rates for a sample of adult​ females, the lowest pulse rate is 38beats per​ minute, the mean of the listed pulse rates is x =73.0 beats per​ minute, and their standard deviation is sequals=23.2 beats per minute.   a. What is the difference between the pulse rate of 38 beats per minute and the mean pulse rate of the​ females? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert the pulse rate of 38 beats per minutes to a z score. d. If we consider pulse rates that convert to z scores between minus−2 and 2 to be neither significantly low nor significantly​ high, is the pulse rate of 38 beats per minute​ significant?

Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard deviation g= 15. Find the probability that a randomly selected adult has an IQ less than 118. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ less than 118 is (Type an integer or decimal rounded to four decimal places as needed.)

Use z scores to compare the given values.   The tallest living man at one time had a height of 256cm. The shortest living man at that time had a height of 114.6 cm. Heights of men at that time had a mean of 174.87 cm and a standard deviation of 7.57 cm. Which of these two men had the height that was more​ extreme?   Since the z score for the tallest man is z=____ and the z score for the shortest man is z=_____​, the (Shortest/tallest) man had the height that was more extreme. ​(Round to two decimal​ places.)

Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 71.9 Mbps. The complete list of 50 data speeds has a mean of x 17.38 Mbps and a standard deviation of s = 19.81 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?

Use z scores to compare the given values. The tallest living man at one time had a height of 238 cm. The shortest living man at that time had a height of 142.4 cm. Heights of men at that time had a mean of 175.45 cm and a standard deviation of 5.59 cm. Which of these two men had the height that was more extreme? ... Since the z score for the tallest man is z = 0 and the z score for the shortest man is z = the man had the height that was Im- more extreme. (Round to two decimal places.) shortest tallest