(a)Find the probability that the selected bulb can survive for at least 3 years. (b)Find the variance of the lifetime of the selected bulb.

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A: 75,79,75,90,86,84,65,71,94,91,85,86,74,90sample size(n)=14

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A: From the provided information,

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A: XY33.340.126.65035.348.143.635.421.647.933.948.110.558.328.543.645.238.924.943.943.734.628.748.4

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A: n=8 , x=2 , p=0.45and q=1-0.45=0.55A random variable XBinomial(n=8 , p=0.45)P(X=x)=

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A: We have given thatThe probability of choosing 6 numbers from 1 to 39 that match the 6 numbers drawn…

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A: The data is defined below as follows:  From the information, given that

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A: The data set provided in the question is as follows:-xi94673

Q: (c) Assuming the normal model can be used, determine P(x 2 64.9).

A: The mean is 63, the standard deviation is 16 and the sample size is 12.

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A: The distribution of blood types for a randomly chosen person in a country is shown below:Blood…

Q: Ten observations were provided for a dependent variable y and two independent variables x₁ and x₂;…

A: n=10, K=2 SST=15181.9SSR=14069.3

Q: Question 20 The graph illustrates a normal distribution for the prices paid for a particular model…

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A: Total number of card=3

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A: From given,n = 75 = 26 = 3090% confidence interval = 0.90 = 1-0.90 = 0.10For 90% confidence…

Q: d) P(-4 35) f) P(|X-6 < 12.4)

A: Given that,X has Normal distribution having parameters:Population mean Population variance…

Q: The table below shows the salary, in millions, made by the highest paid major league baseball player…

A: YearSalary19852.119913.819936.219969.3199814.9200122

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A: The given least squares regression model is .

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A: Mean()=3315standard deviation()=575sample size(n)=16

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A: The mean is 76 and the standard deviation is 12.

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A: The given data is as follows:Population mean, Population standard deviation,

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A: Populatin mean, Population standard deviation, Sample size,

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A: Given:PrizeProbability

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Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: sample size(n)=273x=63

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A: Given the data on the percentage of defective light bulb manufacturing plants in the corresponding…

Q: 3. To examine the calming effect of pets during stressful situations, you recruited 40 five-year-…

A: Given that,n = 40 (number of children)k = 3 (number of groups)SStreatment = 248.3 and SStotal =…

Q: DETAILS You may need to use the appropriate appendix table or technology to answer this question. A…

A:

Q: Given that X = 1, determine the conditional pmf of Y—i.e., pY|X(0|1), pY|X(1|1), pY|X(2|1). (Round…

A: Let X = the no. of hoses being used on the self-service island at a particular time.Y = the no. of…

Q: The random sample yielded a sample mean of x¯=38.2�¯=38.2. Assume that we know the population…

A:

Q: Suppose the probability that Jimmy gets a hit on a given at-bat is 1⁄4. Let X denote the number of…

A: In this case, each of the at-bats has the only option of being "a hit" (defined as success) or "not…

Q: Pupils Per Teacher The frequency distribution shows th United States. Find the variance and standard…

A: Class LimitsFrequency11 - 13114 - 161717 - 191220 - 22523 - 25126 - 282

Q: A two-sided test of hypothesis assumes that a normally distributed random variable X with mean of…

A: For the two-sided hypothesis, the normally distributed variable, X is hypothesized to have claimed…

Q: Before 1918, approximately 55% of the wolves in a region were male, and 45% were female. However,…

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Q: Use the following to answer the questions below: Coca Cola took a sample of 100 bottles of Coke and…

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Q: What is the area between z = 0 and z = -2.16 under the standard normal curve?

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Q: a) Sketch the region corresponding to the statement P(-1.4 < Z < 2.4). Shade: Left of a value…

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