Question: I need help with these please 1. The highest grade for Florida oranges is US. Fancy and is based principally on color. Suppose that Shannon
I need help with these please
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The highest grade for Florida oranges is US. Fancy and is based principally on color. Suppose that Shannon owns a small organic orchard and that the proportion of oranges she grows which can be classied as US. Fancy is 0.40. One morning, Shannon randomly picks 44 oranges. Estimate the probability that the number of oranges that will be classied as US. Fancy, X, is fewer than 16. Use a normal approximation to the binomial distribution with continuity correction to obtain the solution. Give your answer precise to at least four decimal places. A simple random sample of 90 analog circuits is obtained at random from an ongoing production process in which 25% of all circuits produced are defective. Let X be a binomial random variable corresponding to the number of defective circuits in the sample. Use the normal approximation to the binomial distribution to compute P (19 5 X S 28), the probability that between 19 and 28 circuits in the sample are defective. Report your answer to two decimal places of precision. Sapling Learning 1.6- 1.4 - 1.2 - 1.0- 0.8 - 0.6- a 4 -2 N - 6 OO . 10 12 14 z-value of a -1.00 Area left of a 0. 1587 x-value of a -1.00 - - - - Mean 0.00 Reset z-value of b 1.00 Area right of b 0. 1587 x-value of b 1.00 Standard 1.00 Area between a and b: 0.6826 deviation InfoRefer to the Sapling Learning Normal Density Curves Interactive. The area beneath the normal density curve is separated into three regions by the values a and b. Set the mean of the normal density curve to 4.00, the standard deviation to 0.33, the zvalue of a to 3.03 and the zvalue of b to 3.03. Use the interactive to determine the area to the left of a, the area between a and b, and the area to the right of b. According to the College Board, SAT mathematics scores from the 2014 school year for high school students in the United States were normally distributed with a mean of 513 and a standard deviation of 120. Use a standard normal table such as this one to determine the probability that a randomly chosen high school student who took the SAT in 2014 will have a mathematics SAT score between 400 and 750 points. Give your answer as a percentage rounded to one decimal place. MC] Neil is a drummer who purchases his drumsticks online. When practicing with the newest pair, he notices they feel heavier than usual. When he weighs one of the sticks, he finds that it is 2.23 oz. The manufacturer's website states that the average weight of each stick is 1.85 oz with a standard deviation of 0.18 oz. Assume that the weight of the drumsticks is normally distributed. What is the probability of the stick's weight being 2.23 oz or greater? Give your answer as a percentage precise to at least two decimal places. You might find this table of standard normal critical values useful.Suppose that a random variable Z has a standard normal distribution. Find a such that P(Z > a) = 0.151. Give your answer to two decimal places. You may nd this Z table useful. Chobani yogurt is made using a special straining technique to remove excess liquid. This process yields a thicker, creamer yogurt with more protein per serving than a regular yogurt. Suppose the amount of protein, X, in a 53-02 serving of Chobani Flip salted caramel crunch is normally distributed with mean 12 g and standard deviation 0.7 g. A 5.3-oz serving is selected at random from the assembly line. (a) What is the probability that there is more than 13.5 g of protein in the cup of yogurt? Give your answer to at least three decimal places. (b) As part of quality control, if a randomly selected cup of yogurt contains between 11 and 13 g of protein, then the manufacturing process continues. Otherwise it is halted and inspected. If a cup of yogurt is randomly selcted, what is the probability the manufacturing process is allowed to continue? What is the probability that the manufacturing process is halted and inspected? Give your answers to at least three decimal places. (c) Suppose a cup of yogurt has less than 12.5 g of protein. What is the probability that is has more than 11.5 g? Give your answer to at least three decimal places. P
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