Find the coefficient of variation for each of the two sets of data, then compare the variation. Round results to one decimal place. Listed below are the systolic blood pressures (in mm Hg) for a sample of men aged 20-29 and for a sample of men aged 60-69. Men aged 20-29: Men aged 60-69: 120 122 128 118 131 123 132 154 136 125 164 139 O A. Men aged 20-29: 4.1% Men aged 60-69: 10.7% There is substantially more variation in blood pressures of the men aged O B. Men aged 20-29: 4.0% Men aged 60-69: 10.3 % There is substantially more variation in blood pressures of the men aged 60-69. 60-69. O C. Men aged 20-29: 6.5% Men aged 60-69: 4.7% There is more variation in blood pressures of the men aged 20-29. O D. Men aged 20-29: 3.8% Men aged 60-69: 8.3% There is substantially more variation in blood pressures of the men aged 60-69.

A sample of human brain volumes (cm³) is given below. Use the given data values to identify the corresponding z scores that are used for a normal quantile plot, then identify the coordinates of each point in the normal quantile plot. Construct the normal quantile plot, then determine whether the data appear to be from a population with a normal distribution. 1075 O A. List the z scores for the normal quantile plot. 10 (Round to two decimal places as needed. Use ascending order.) O C. z score z score 321 Identify the coordinates of each point in the normal quantile plot. Use ordered pairs of the form (x,y), where x is the sorted human brain volumes, and y is the corresponding z score. ☐☐☐☐☐☐☐☐ (Type ordered pairs. Round to two decimal places as needed. Use ascending order.) Construct the normal quantile plot. -2- -3- 900 1077 WARU 957 -2- -3+ 900 1026 X Values X Values 1077 1500 1500 Q Q OB. O D. 1443 z score z score Do the data appear to come from a normally distributed population? ܚ ܝ…

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Use the standard normal table to find the z-score that corresponds to the cumulative area 0.9616. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. Click to view page 1 of the standard normal table. Click to view page 2 of the standard normal table. (Type an integer or decimal rounded to three decimal places as needed.) - X - X Standard normal table (page 1) Standard normal table (page 2) - 3.3 .0004 0005 .0003 .0004 .0004 .0004 .0004 .0004 .0005 .0005 .0005 0.2 .5793 .5832 .5871 .5910 .5948 .5987 .6026 .6064 .6103 .6141 - 3.2 .0005 .0005 .0006 .0006 .0006 .0006 .0006 .0007 .0007 0.3 .6179 .6217 .6255 .6293 .6331 .6368 .6406 .6443 .6480 .6517 3.1 .0007 .0007 .0008 .0008 .0008 .0008 .0009 .0009 .0009 .0010 0.4 .6554 .6591 .6628 .6700 .6736 .6772 .6808 .6844 .6879 .6664 - 3.0 – 2.9 .0010 .0010 .0011 .0011 .0011 .0012 .0012 .0013 .0013 .0013 .6915 .7019 .7088 .7422…

00 T R AWM Z. Use the standard normal table to find the z-score that corresponds to the given percentile. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. If convenient, use technology to find the z-score. P72 Cliak to viouno The z-score that corresponds to P72 is (Round to two decimal places as needed.) Enter your answer in the answer box. ?. ll Jeffrey Jones 61 Lea V Stop Video Participants Chat Share Screen Record Reactions Unmute Type here to search 近。 PrtScn Home (口 F1 F2 F3 F4 F5 23 2$ 5. 9- 4. A. B.

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Estimate the distance traveled in 20 seconds given the following sample velocities using right- endpoint values. Be sure to write the units for your answer. Time (s) 10 15 20 Velocity (m/s) 3 3.4 2.9 2.4 1

Using the standard normal table in the Toolbox, determine a Z-value. Each response must include three numerical values and be rounded to the hundredths place. Question 1 The cumulative area to Z is 0.80.  Question 2 The cumulative area to Z is 0.1762.  Question 3 The area between Z and negative infinity is 0.6664.  Question 4 The area between Z and positive infinity is 0.119.

The mean height of women in a country (ages 20 - 29) is 64.3 inches. A random sample of 70 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 inches? Assume o = 2.86. The probability that the mean height for the sample is greater than 65 inches is (Round to four decimal places as needed.)