Please answer the circled question! MemeDour taste mto a sweet taste. Refer to the Plant Science(May 2010) investigation of the ability of a hybrid to-mato plant to produce miraculin, Exercise 5.38 (p. 251).Recall that the amount x of miraculin produced in theplant had a mean of 105.3 micrograms per gram offresh weight with a standard deviation of 8.0. Considera random sample of n = 64 hybrid tomato plants andlet x represent the sample mean amount of miracu-lin produced, Would you expect to observe a value ofx less than 103 micrograms per gram of fresh weight?Explain.of6.42 Uranium in the Earth's crust. Refer to the AmericanMineralogist (Oct. 2009) study of the evolution of uraniumminerals in the Earth's crust, Exercise 5.9 (p. 238). Recall30that researchers estimate that the trace amount of uraniumnx in reservoirs follows a uniform distribution ranging be-tween 1 and 3 parts per million. In a random sample ofn = 60 reservoirs, let represent the sample mean amountof uranium.4ea. Find E(x) and interpret its value.b. Find Var(x).c. Describe the shape of the sampling distribution of T.d. Find the probability that is between 1.5 ppm andeelst2.5ppm.e. Find the probability that x exceeds 2.2 ppm.6.43 Critical part failures in NASCAR vehicles. Refer to TheSport Journal (Winter 2007) analysis of critical part fail-ures at NASCAR races, Exercise 5.106 (p. 271). Recallthat researchers found that the time x (in hours) until thefirst critical part failure is exponentially distributed withu = .10 and o = .10. Now, consider a random sample of50 NASCAR races and let i represent the samplemean time until the first critical part failure.a. Find E(x) and Var(x).b. Although x has an exponential distribution, the sam-pling distribution of i is approximately normal. Why?c. Find the probability that the sample mean time until thefirst critical part failure exceeds .13 hour.n =6.44 Motivation of drug dealers. Refer to the Applied3O O o

Name: Please answer the circled question! MemeDour taste mto a sweet taste.
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Description: Please answer the circled question! MemeDour taste mto a sweet taste. Refer to the Plant Science(May 2010) investigation of the ability of a hybrid to-mato plant to produce miraculin, Exercise 5.38 (p. 251).Recall that the amount x of miraculin produ