Find σ. (Enter an exact number as an integer, fraction, or decimal.) X ~ N(3, 5)
Find σ. (Enter an exact number as an integer, fraction, or decimal.) X ~ N(3, 5)
1. Find ?. (Enter an exact number as an integer, fraction, or decimal.) X ~ N(5, 6) ? = 2. It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, minutes of activity varied according to the N 374, 68) distribution. Minutes of activity for lean people had the M 528, 101) distribution within what...
Find the probability that x falls in the shaded area. (Enter an exact number as an integer, fraction, or decimal.) 0 12 3 45 6 7 8 9 10
Suppose X ~ N(4, 3). What is the z-score of x = 4? (Enter an exact number as an integer, fraction, or decimal.) z =
21. -/1.81 points IllowskylntroStat1 4.PR.020. Find the standard deviation. (Enter an exact number as an integer, fraction, or decimal.) x P(x) 30.1 50.3 70.4 90.2 **P(x) (x - x)2P(x) 3(0.1) - 0.3 (3 - 6.4)2(0.1) - 1.156 5(0.3) - 1.5 (5 - 6.4)2(0.3) - 0.588 7(0.4) - 2.8 (7 - 6.4)2(0.4) = 0.144 9(0.2) - 1.8 (9 - 6.4)?(0.2) - 1.352 Submit Answer
Click here to view the transcript Find the exact value of sin (@). (Enter an exact number as an integer, fraction, or decimal.) Need Help? Read It Talk to a Tutor JSU Rho Gam...pdf
1.Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 101; σ = 16 P(x ≥ 120) = 2.Suppose X ~ N(5, 9). What is the z-score of x = 5? (Enter an exact number as an integer, fraction, or decimal.) z =
Suppose X ~ N(8, 1). What value of x has a z-score of −1.25? (Enter an exact number as an integer, fraction, or decimal.) x=
Consider the data set. 2, 3, 5, 6, 7 (a) Find the range. (Enter an exact number.) (b) Use the defining formula to compute the sample standard deviation s. (Enter a number. Round your answer to two decimal places.) (c) Use the defining formula to compute the population standard deviation σ. (Enter a number. Round your answer to two decimal places.)
Suppose X ~ N(3, 2). What value of x is two standard deviations to the right of the mean? (Enter an exact number as an integer, fraction, or decimal.) x =
Consider an x distribution with standard deviation σ = 28. (For each answer, enter an exact number.) (a) If specifications for a research project require the standard error of the corresponding x bar distribution to be 2, how large does the sample size need to be? n = (b) If specifications for a research project require the standard error of the corresponding x bar distribution to be 1, how large does the sample size need to be? n =