Cost of an Operation A medical researcher surveyed 10 hospitals and found that the standard deviation for the cost for removing a person's gall bladder was $55. Assume the variable is normally distributed. Based on this, find the 90% confidence intervals of the population variance and standard deviation. Round the answers to two decimal places. <

Q: How would you then interpret this question based on the findings?

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A: Given: Stock is normally distributed  Mean=4.5% Standard deviation =4%

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Q: Consider the following discrete distribution X 1 P(X=x) 0.02 2 0.15 3 4 5 0.08 0.25 0.05 € 0.-

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A: GIvenMean(μ)=61standard deviation(σ)=5.9

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A: Given,sample size(n)=30α=1-0.95=0.05α2=0.025Z0.025=1.96

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A: The hypothesized mean is 44 minutes.

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A: It is given that  Significance level, α = 0.01 P-value = 0.3876

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A: given data  n = 144 p^ =0.5 95% ci ; E = ?

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A: From the provided information, Number of participants (n) = 97 Level of significance (α) = 0.05

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A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 10 X~N (120, 10) Here X be…

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A: It is given that each of 50 moviegoers was asked, “ What is your favourite movie type ?”

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A: Given data is22,34,9,25,11,24,2,10,7,18,32,6,31,9,5,14,27,3,20,15sample size(n)=20

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A: Givenn=176x=83

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A: The response times to a certain stimuli of psychiatric patients are given.

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A: The maximum value is 53 and the minimum value is 7.

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A: Given that Population standard deviation =$35 95 % confidence interval Margin of Error=$10  We have…

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A: Given,p^=0.25

Q: Fast

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A: Given that  Level of significance =alpha =0.01

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Q: Suppose A and B are events with P(A) > 0 and P(B) > 0. If BC A, which of the following must be true?…

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Q: Direct Satellite Television It is believed that 25% of U.S. homes have a direct satellite television…

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A: Given that  n = 40 , s = 2.55

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A: Given,The average no.of emergency calls per day is (λ)=4.8A random variable…

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A: The mean is 1650 kilowatt-hours and standard deviation is 320 kilowatt-hours.

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A: GivenMean(μ)=500standard deviation(σ)=10

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A: Given Information: Consider the given data: No. LOCATION TYPE OF SCHOOL IQ Entrance Exam Score…

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A: given data P(enroll in college) = p  = 0.70sampke size n = 15x = no. of students enroll in…

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A: Given data is 12.113,12.114,12.112,12.112,22.111,12.113,12.111,12.114,12.113,12.110sample size(n)=10

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A: Given that.   X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: 0.10

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Q: For a uniform random variable `U~U(7,19)`, find the probability `P(8<U<10)`: `P(8<U<10)=`

A: From the provided information, X is random variable with a uniform distribution 'U~U (7, 19) Here a…

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Q: Boxes of cereal are labels as containing 13ounces following are the weight of a sample of 12 boxes.…

A: Given that 13.01, 13.02, 13.07,  13.09, 13.16, 13.16 13.02, 13.15,  13.12, 12.98, 13.11, 13.18  We…