b) A machine fills cans with soft drinks so that their contents have a volume of 330ml. Over a period of time, it has been established that the volume of liquid in the cans follow a normal distribution with mean of 335 ml and standard deviation of 3 ml. A setting on the machine is altered, following which the operator suspects that the mean volume of liquid discharged by the machine into the cans has decreased. He takes a random sample of 50 cans and finds that the mean volume of liquid in these cans is 344.6 ml. Does this confirm his suspicion? Test at the 5% level of significance.

Q: If P (B) = 0.7, find P (B²). P(B) = X Ś

A: Given;if P(B) = 0.7

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A: The given mean is 168.8 and standard deviation is 43.6.

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A:

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A:

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A:

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A: Given n=23 Mean=76.33 Standard deviation=6.23

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A: Solution: Let X be the  systolic blood pressure of normal adults is  normally distributed with mean…

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Q: Suppose that a random sample of size 36 is to be selected from a population with mean 47 and…

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A:

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A:

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A:

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A: GIVEN DATA,n=9μ=50σ=24M=80z score =? 80-

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Q: Suppose a density curve has an area of 0.361 to the left of 12 and an area of 0.428 to the right of…

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Q: 25 Suppose that X₁ and X₂ have a joint pdf f(x₁, x₂) = (2/3)(x₁ + 1), for 0 < x₁ < 1,0 < x₂ < 1,

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Q: 27) The probability that z lies between 0.7 and 1.98

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Q: In a simple random sample of size 35, a study was conducted to test their mean height. The mean…

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Q: Question 22 ▼ < Assume that a procedure yields a binomial distribution with n = 678 trials and the…

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Q: its way with mean = 1.5 minutes and o= 0.35 minutes. Suppose 4 rats are selected. What is the…

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Q: For a population with µ = 32 and σ = 2, what is the z-score corresponding to X = 33?​

A: given data  μ = 32σ= 2 x= 33z = ?

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A:

Q: If z is a standard normal variable, find the probability. 26) The probability that z is less than…

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A:

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Q: ind a value of c so that P(Z ≤ c) = 0.47.

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Q: A = {E₂, E4} B = {E₁, E3} C = {E₁1, E4, E5). (a) Find P(A), P(B), and P(C). P(A) = 0.4 P(B) = 0.4…

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Q: 32) Find the probability that in 200 tosses of a fair die, we will obtain at most 30 fives. Use the…

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Q: 29) P(-0.73<z<2.27)

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Q: 9) Determine whether the given procedure results in a binomial distribution. If not, state the…

A: given statement: spinning a roulette wheel 7 times, keeping track of the winning numbers.