Suppose John has a torn tendon and is facing surgery to repair it. The surgeon explains the risks to John: infection occurs in 4% of operations, the repair fails in 12% of operations, and both infection and failure occur together in 0.78% of operations. What percentage, P, of these operations succeed and are free from infection? Please round your answer to the nearest two decimal places. 1.62 P =

Q: In an agricultural experiment, the effects of two fertilizers on the production of limes were…

A: Obtain the 99% confidence interval for the difference between two population means. The 99%…

Q: An epidemiologist is worried about the prevalence of the flu in East Vancouver and area. She will…

A: The smapleproprotion is caculated as: p = x/n=36/330 =0.1091   At a 95% confidence level, the z…

Q: d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is…

A: We have to find score for given percentile.

Q: a. Assume that nothing is known about the percentage to be estimated. (Round up to the nearest…

A: a) If nothing is known about percentage to be estimated,  We will have a conservative estimate for…

Q: The following table shows data about heart attack deaths in a certain town over one year.…

A:

Q: A local 4-H club surveyed its members, and the following information was obtained: 18 members had…

A: a.) 36.84% b.) 31.58% c.) 5.26%   explanation is given in below step

Q: A population with a mean of u = 8 has EX = 40. How many scores are in the population?

A: It is given that the mean is 8 and sum of X is 40.

Q: A federal report indicated that 28% of children under age  6 live in poverty in Kentucky, an…

A: From the provided information, 28% of children under age 6 live in poverty in Kentucky that is p =…

Q: A federal report indicated that 11% of children under age 6 live in poverty in New Hampshire, an…

A:

Q: A federal report indicated that 58% of children under age 6 lie in poverty  in Puerto Rico, an…

A:

Q: A federal report indicated that 13% of children under age 6 live in poverty in Minnesota, an…

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

Q: псе pec against loss of both eyes in a car acciden Based on previous data, the rates were computed…

A: Given: n=4000 p=10100000=0.0001

Q: At a certain university, 22% of students fail general chemistry on their first attempt. Professor…

A:

Q: In an agricultural experiment, the effects of two fertilizers on the production of limes were…

A: Confidence interval: It is assumed that the samples are come from population with common standard…

Q: (c) Suppose that the researchers wanted to estimate the proportion of patients under 50 years old…

A: Givenx=19n=356Margin of error(E)=0.03p^=xn=19356=0.0534Confidence interval = 95%

Q: You sampled 13 people and got their pre-diet weight and post-diet weight. If α=.05α=.05, the test…

A:

Q: A researcher wishes to estimate the proportion of corporate executives whose annual salary is over…

A:

Q: A random sample of 1012 adults in a certain large country was asked "Do you pretty much think…

A:

Q: Each person in random samples of 227 male and 263 female working adults living in a certain town in…

A: The objective is to test whether there is a difference in mean commute times for male and female…

Q: The results of a recent poll on the preference of teenagers regarding the types of music they listen…

A: Here is given that, two populations and two selected samples. We will use two proportion point…

Q: d. What percentage of terminals will last between 2.5 and 4.5 years? e. If the manufacturer…

A: Mean(µ) = 4 yearsStandard deviations (σ) = 10/12 = 0.83 yearX ~ N (µ, σ )= N(4, 0.83)

Q: A local 4-H club surveyed its members, and the following information was obtained: 19 members had…

A:

Q: Suppose John has a torn tendon and is facing surgery to repair it. The surgeon explains the risks to…

A: Let us denote: A= infection  B= Repair fail  Given that P(A)=3%=0.03 , P(B)= 17%=0.17 P(A and…

Q: A federal report indicated that 11% of children under age 6 live in poverty in New Hampshire, an…

A:

Q: In an attempt to reduce the growth of its population, China instituted a policy limiting a family to…

A:

Q: Your lemonade stand takes in $ 6.00 on a weekday and $ 12.50 each on Saturday and Sunday. With these…

A: We have to find out given mean.

Q: Country Financial, a financial services company, uses surveys of adults age 18 and older to…

A: a) Given that, x1=410  n1 =1000x2=315  n2=900The hypothesis is,H0 : p1-p2 =0  VS H1: p1-p2 ≠0The…

Q: The mean of the population is (Round to two decimal places as needed.)

A: The population is 508, 634, 545, 611 and 577.

Q: (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are…

A: Given: μ=515, σ=110 The corresponding z-value needed to be computed: The probability that s scores…

Q: A tax accountant would like to test the claim that the proportion of individuals who owe when filing…

A:

Q: For a sample of 12 offenders convicted of weapons violations, the length of prison sentence in…

A: Solution: Let X be the length of prison sentence in months. The given data is 6, 6, 2, 12, 36, 48,…

Q: For a sample of 12 offenders convicted of weapons violations, the length of prison sentence in…

A: to find mean valuemean = sum of observations/ count of observationsmean = (6 + 6 + 2 + 12 + 36 + 48…

Q: d) Theth percentile corresponds to this score, which means that 299 is (Round to five decimal places…

A: Now finding the answer for (d) Given that the best score is 299 now we have to find percentile…

Q: From a series of gas samples taken from the 1970 Mount Edna volcanic eruption, it has been…

A: We have to find out given probabiity...

Q: 9) A group of eight individuals with high cholesterol levels were given a new drug that was designed…

A: (a). Find the 99.5% confidence interval for the population mean reduction in cholesterol level: The…

Q: John Kittle, an independent insurance agent, uses a five-year moving average to forecast the number…

A: Given, Claims made four years ago as 1,400 when it should have been 1,200.       to find, a. What…

Q: Suppose that in a survey of 1,000 U.S. residents, 721 residents believed that the amount of violent…

A: From the provided information, Number of residents = 1000 721 residents believed that the amount of…

Q: For a sample of 12 offenders convicted of weapons violations, the length of prison sentence in…

A: to find mean valuemean = sum of observations/ count of observationsmean = (6 + 6 + 2 + 12 + 36 + 48…

Q: According to Deloitte, through January 25,2006, the majority of companies reporting profits had…

A:

Q: Suppose that out of 10,351 convicts who escaped from U.S. prisons, only 7767 were recaptured. Let p…

A:

Q: For a population with µ = 40 and σ = 8, what is the X value corresponding to z = 1.50?

A: It is given that the mean is 40 and the standard deviation is 8.

Q: For a population with μ =100 and σ = 20, what is the X value corresponding to z = -0.50?

A:

Q: medical researcher says that less than 82% of adults in a certain country think that healthy…

A: Given  p=0.82, n=300, p^=0.78

Q: A population with a mean of u = 8 has EX 40. How many scores are in the population?

A: From the provided information, Mean (µ) = 8 ∑X = 40

Q: A local 4-H club surveyed its members, and the following information was obtained: 14 members had…

A:

Q: A new insecticide is advertised to kill more than 95% roaches upon contact.  In a laboratory test,…

A: Given,   The sample proportion is,

Q: To two decimal places, what is the mean of these scores: 10, 15, 17, 17, 2 O 14.50

A: It is an important part of statistics. It is widely used.

Q: Solve the problem. Round the point estiamte to the nearest throusandth.  6) Find the point estimate…

A: Let X be the people had hearing aids  n be the random sample Given X=20, n=304

Q: The following equation was estimated by OLS: Unipa = 1.392 – 0.0135 psperc + 0..00148 sat n = 4,137,…

A: Here, it has been provided that psperc has been kept fixed so, The given regression equation is:…

Q: The sample of an element as a weight of 4.5 mg and a alf-life of approximately 5

A: Given half life    t12 = 5  years initial weight f(0) = 4,5 mg