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Solve the problem. A ompany manufactures batteries in batches of 6 and there is a 3%...
Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. -3.39 2.26 -1.13 1132263393 B) 0.8708 A) 0.8907 C) 0.8485 D) 0.1292 -1.82 A) -0.0344 B) 0.4656 C) 0.0344 D) 0.9656 Find the indicated z score. The graph depicts the standard normal distribution with meant and standard deviation 1. 3) Shaded area is 0.4013. 0.40131 A) 0.25 B) 0.57 C) -025 D) -0.57
find the area of the shaded region. the graph depicts the standard normal distribution Find the area of the shaded region. The graph depicts the standard deviation 1. normal distribution with mean 0 and standar 1) 1) 1.13 226 339 -3.39 -226 -1.13 B) 0.1292 C) 0.8708 D) 0.8907 A) 0.8485 2) 2) Round to four decimal places. 2.95-2.36-1.77-1.18-059 059 1.18 1.77 236 3) Round to four decimal places. 3) -2.16 -1.08 1.08 216 Find the indicated z score. The...
Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these batteries follows the normal probability distribution with a mean of 35 hours. hours and a standard deviation of 5.2 hours. As a part of its quality assurance program, Power +, Inc. tests samples of 9 batteries. a. What can you say about the shape of the distribution of the sample mean? Sample mean Normal b. What is the standard error of the distribution of...
1. For a normal curve whose mean is 5 with a standard deviation of 1.1 find the x-value with 73% of the data to the left of it. 5 %.67 b) 0.61 C) 0.73 d) answer not here 2. The marks on a statistic test are normally distributed with a mean of 62 and a standard deviation of 15. If the instructor wishes to assign B's or higher to the top 30% of the students in the class, what mark...
Power+, produces AA batteries used in remote-controlled toy cars. The mean life of these batteries follows the normal probability distribution with a mean of 32 hours and a standard deviation of 5.2 hours. As a part of its testing program, Power+ tests samples of 36 batteries. Use Appendix B.1 for the z-values. a. What can you say about the shape of the distribution of sample mean? b. What is the standard error of the distribution of the sample mean? (Round...
1 2: 3: 4. This Question: 1 pt 6 of 6 (0 complete) The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a standard deviation of 7.8 a. Find the probability that an individual distance is greater than 206.80 cm. b. Find the probability that the mean for 25 randomly selected distances is greater than 196.20 cm. c. Why can the normal distribution be used in part (b), even though the sample...
cr MATH 227 -TEST 2 SAMPLE how many subcommit thee of 6 member If they Solve the problem 3,4 5, 6. 7if repetition of digits is not allowed? e formed using the 2) How many -digt unbos can be fomed using the digits 1,234tition of digits is not If not, identify the requirement that is not satisfied. disbribution. Deternine w -0047 0.292 distribution for the number of adults (among 4 randomly selected adults) who have a college degree. Find the...
Chapter 7: Problem 13 Previous Problem Problem List Next Problem (1 point) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ 545.3 and standard deviation σ .: 29.9 (a) What is the probability that a single student randomly chosen from all those taking the test scores 551 or higher? ANSWER: For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the...
1) Find the area under the standard normal curve to the right of z= -0.62. Round your answer to four decimal places. 2) Find the following probability for the standard normal distribution. Round your answer to four decimal places. P( z < - 1.85) = 3) Obtain the following probability for the standard normal distribution. P(z<-5.43)= 4) Use a table, calculator, or computer to find the specified area under a standard normal curve. Round your answers to 4 decimal places....
Problem 1. 531.1 and standard deviation a-29.4 (2 points) The scores of students on the SAT colloge entrance examinations at a certain high school had a normal distribution with mean (a) What is the probability that a single student randomly chosen from all those taking the test scores 536 or higher? ANSWER For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the test (b) What are the mean and standard deviation of the...