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- Respiratory Rate Researchers have found that the 95 th percentile the value at which 95% of the data are at or below for respiratory rates in breath per minute during the first 3 years of infancy are given by y=101.82411-0.0125995x+0.00013401x2 for awake infants and y=101.72858-0.0139928x+0.00017646x2 for sleeping infants, where x is the age in months. Source: Pediatrics. a. What is the domain for each function? b. For each respiratory rate, is the rate decreasing or increasing over the first 3 years of life? Hint: Is the graph of the quadratic in the exponent opening upward or downward? Where is the vertex? c. Verify your answer to part b using a graphing calculator. d. For a 1- year-old infant in the 95 th percentile, how much higher is the walking respiratory rate then the sleeping respiratory rate? e. f.Find mean and standard deviation for each uniform continuous model Mean place and deviation answers to 4 decimal places Standard deviation A.(3, 13); B.(90, 190); C.(3,99)What is the Discrete Variable Standard Deviation for the following numbers: x = 0 and P(X = x) = 0.56 x = 1 and P(X = x) = 0.15 x = 2 and P(X = x) = 0.11 x = 3 and P(X = x) = 0.13 x = 4 and P(X = x) = 0.05 Level of difficulty = 2 of 2 Please format to 4 decimal places. Answer:
- Suppose the mean monthly return on a T-Bill is 0.5% with a standard deviation of 0.58%. Sup-pose we have another investment Y with a 1.5% mean monthly return and standard deviationof 6%. Which of the two investments o ers less risk in terms of investment.Ex8: Assume that the current measurements in a strip of wire follow a normal distribution with a mean of 10 mA and a variance of 4 (mA)² .What is the probability that a measurement exceeds 13 mA?Find the mean and standard deviation for each uniform continuous model. (Round "Mean" answers to 1 decimal place and "Standard deviation" answers to 4 decimal places.) Mean Standard deviation a. U(3, 12) 7.5 Numeric Response 1.Edit Unavailable. 7.5 correct. 2.598 Numeric Response 2.Edit Unavailable. 2.598 correct. b. U(100, 190) 145 Numeric Response 3.Edit Unavailable. 145 correct. 53. Numeric Response 4.Edit Unavailable. 53. incorrect. c. U(4, 92) 48 Numeric Response 5.Edit Unavailable. 48 correct.
- A study of the amount of time it takes a hiker to hike to the bottom of the Grand Canyon and back to the top shows that the mean is 10 hours and the standard deviation is 2 hours. If 9 hikers are randomly selected, find the probability that their mean hiking time is less than 9 hours. P(x < 9 hours) = . (z < Shade the appropriate region be sure to round you previous answer to one decimal place in order to graph: Shade: Left of a value Click and drag the arrows to adjust the values. 2 4. -1.5Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and standard deviation 1. ← 2 W S The area of the shaded region is (Round to four decimal places as needed.) आईड SA H nd D X 2Demo Outline....docx 3 E 8.0 F3 D C $ 4 a F4 R F V chapt21_lecture....pdf % 5 e " T G 1 ^ 6 B MacBook Air F6 Y H & 7 chapt22_lecture.....pdf N U √₁ Vi J * 8 DII FB I M 1, (0,0) ( 9 K chapt23_lecture....pdf DD FO More O < I H ) O F10 command P J L V Time Remaining:00:42:40 Next - : ; I 4 F11 { [ option + = 11 z = -0.92 ? 1 I Show All F12 1 X X Q C delete L2. Compute the mean absolute deviation (MAD) and mean square error (MSE) for the following errors: Period (t) 1 2 3 6 4 5 7 Forecast (F;) 6.5 3.8 9.2 1.2 2.3 8.3 6.5 Error (e,) -2.3 | 1.3 -0.9 | 2.1 0.5 | -3.8 | 2.9 Calculate the actual values also.
- Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C.A single thermometer is randomly selected and tested. Let Z represent the reading of this thermometer at freezing. What reading separates the highest 31.42% from the rest? That is, if P(z>c)=0.3142, find c.c= Incorrect °C this one the answer was wrong tooFind the mean and standard deviation for each uniform continuous model. (Round "Mean" answers to 1 decimal place and "Standard deviation* answers to 4 decimal places A. U(1, 12) B. U(80, 210 C. U(4, 97The Absolute percent error for period 4 when Three period moving average forecast method is used:(Please round to 2 decimal places for your answer and kee in probability format). 3-Period MA X(Period) Y(Sales) Forecast Error Eror Absolute Absolute Percent Squared Enor Eror 7.7 2 9.6 2.6 3 13 15 6 12 71 Your Answer: Answer