14. (3.28) Find the proportion of observations (±0.0001) from a standard Normal distribution that falls in...
14 (3.28) Find the proportion of observations ( 0.0001) from a standard Normal distribution that falls in each of the following regions. In each case, sketch a standard Normal curve and shade the area representing the region. (a)2 2.03 : (c)z > 1.55: (d)一2.03 < z < 1.55 :
Use Table A to find the proportion of observations from a standard Normal distribution that satisfies each of the following statements. In each case, sketch a standard Normal curve and shade the area under the curve that is the answer to the question. 6. What proportion of observations satisfy z < 2.85? Answer to 4 decimal places. Answer 7. What proportion of observations satisfy z > 2.85? Answer to 4 decimal places. Answer 8. What proportion of observations satisfy -1.66...
Use the Normal Table. Use Table A to find the proportion of observations from a standard Normal distribution that satisfies each of the following statements. In each case, sketch a standard Normal curve and shade the area under the curve that is the answer to the question. z < −0.42 z > −1.58 z < 2.12 −0.42 < z < 2.12
Use the Normal Table. Use Table A to find the proportion of observations from a standard Normal distribution that satisfies each of the following statements. In each case, sketch a standard Normal curve and shade the area under the curve that is the answer to the question. a) z < −0.32 b) z > −1.56 c) z < 2.04 d) − 0.32 < z < 2.04
Find the proportion of observations from a standard normal distribution curve that satisfies z-score: -0.2<z< 0.6 Round numerical value to the second decimal place, (Hint: use cumulative standard normal distribution z-table) None of the given numerical values is correct 0.41 Not enough information to answer the question 0.38 0.23 0.31 0.16 0.69
2 pts Find the proportion of observations from a standard normal distribution curve that satisfies z-score: -0.1<z< 1.0 Round numerical value to the second decimal place. (Hint: use cumulative standard normal distribution z-table) O 0.62 O 0.38 0.32 O 0.25 O 0.48 0.44 Not enough information to answer the question None of the given numerical values is correct
1. Use Table A to find the proportion of observations from a standard Normal distribution that satisfies each of the following statements. In each case, sketch a standard Normal curve and shade the area under the curve that is the answer to each question. a. z<-1.83 b.z > 2.18 c. Z>-0.51 d. z <0.33 e. 1.42<z <2.68 f.-2 <2<1.53 X is a normally distributed variable with mean u = 30 and standard deviation o = 4. Find the following: a....
(3.37) NOTE: The numerical values in this problem have been modified for testing purposes In its Fuel Economy Guide for 2014 model vehicles, the Environmental Protection Agency gives data on 1160 vehicles, There are a number of high outliers, mainly hybrid gas-electric vehicles. If we ignore the vehicles identified as outliers, however, the combined city and highway gas mileage of the other 1134 vehicles is approximately Normal with mean 22.8 miles per gallon (mpg) and standard deviation 5.2 mpg. The...
1.128 Find some proportions. Using either Table A or vour calculator or software, find the proportion of obser- vations from a standard Normal distribution that satisfies each of the following statements. In each case, sketch a standard Normal curve and shade the area under the curve that is the answer to the question. TА ат 3 (a) Z > 1.55 (b) Z<1.55 (c) Z > -0.70 (d) -0.70 < Z < 1.55 Jeds dous. .0s. T.LIA or
Use Table A to find the proportion of observations from a standard Normal distribution that satisfies each of the following statements. Enter your answers rounded to four decimal places. a) z < -0.48 = b) z > -1.67 = c) z < 2.14 = d) – 0.48 < z < 2.14 =