A student added 3/4 and 1/2 and obtained 4/6 as an answer. How would you use estimation to show the student that this answer could not possibly be correct?

Q: What will be the estimate for 9.1 if we use L(x)?

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Q: Find the standard error of estimate, se, for the data below, given that Y hat = -0.206x + 2.097.…

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Q: Suppose you wanted to poll citizens of the U.S. and Canada to estimate the number of people who…

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Q: We have 30 items to compare, but this time two of those items tend to cause bigger problems in th…

A: From the given information, There are 30 items to compare. Among the 30 items, 2 items are tend to…

Q: how to get the value of 0.071s^2 + 0.389s + 0.727 through regression? can someone explain?

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Q: A recent study indicated that 20% of 133 women over age 55 in the study were widows.  a. How large a…

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

A: Given that  A medical researcher says that less than 82% of the adults in certain country thinks…

Q: 6.2.15. By using expressions $(6.2 .21)$ and $(6.2 .22)$, obtain the result for the one-step…

A: Given: The result that includes the one-step estimate is determined as below,

Q: The variance of a series of numbers 2, 3, 11 and x is 12 . Find the value of x.

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Q: A certain cancer among men aged 70 and over occurs at a rate of 1 in 150. A blood test will be…

A: Given that P(cancer present)=1/150 P(cancer not present)=149/150 P(positive| present)=99%=0.99…

Q: Suppose you wanted to poll citizens of the U.S. and Canada to estimate the number of people who…

A: Research Methodology: A research methodology is a description of how a certain type of study is…

Q: The nightshift workers in 3 of Super Bo’s specialty stores stock about 500 (SD = 12.56) products in…

A: Let μ be the population mean. The hypothesis is, Null hypothesis: H0:μ=496 Alternative hypothesis:…

Q: A magazine provided results from a poll of 1000 adults who were asked to identify their favorite…

A: From the provided information, Among 1000 respondents 13% choose chocolate pie and the margin of…

Q: A random sample of 354 persons showed that 206 do not have health insurance. Calculate the point…

A: Given data,n=354x=206p=?

Q: b. Find an estimate of p2, the true proportion of less-experienced bidders who fall prey to the P2…

A: The number of less experienced bidders (n2) is 138.

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than…

A: It is given that n is 1,817 and x is 400.

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

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Q: If you don't have a calculator, you may want to approximate (8.032)2/3 by 32/3. Use the Mean Value…

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Q: You have received a radioactive mass that is claimed to have a mean decay rate of at least 1…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

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: 2. Approximate √64.1 by using linearization and use a calculator to compute the percentage error.

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Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than…

A: From the provided information, The hypotheses can be constructed as: Null hypothesis: H0: p = 0.25…

Q: Suppose the relationship between Y and X is given by: Y = 3.1415 + 6X + error  By how much does…

A: Given : Y = 3.1415 + 6X + error  Slope = coeff of x = 6

Q: Two types of medical devices used for knee replacement are being studied to see if the type of knee…

A: Given, The infection rate for a specific bacterial infection after surgery for device A is 0.0043.…

Q: The proportion of people who write with their left hand is equal to 0.21. Thich of the following is…

A: Type 1 error: rejecting null hypothesis when actually it is true Type 2 error: don't rejecting null…

Q: A certain test is worth 125 points. How many points (rounded to the nearest point) are needed to…

A: Test of worth=125 pointneeded=75 %

Q: A nutritionist claims that the proportion of females who consume too much saturated fat is lower…

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Q: Find the standard error of estimate, se, given that 00 F4 -

A: Here given regression equation  of sales

Q: how would i find the point estimate for q?

A: The point estimate for p is,

Q: A sample of patients is tested to determine if they have any hospital borne infections. How large of…

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Q: 2. Approximate 64.1 by using linearization and use a calculator to compute the percentage error.

A: Given :64.13 We need to approximate the given expression using linearization and compute the…

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

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Q: After calculating the sample size needed to estimate a population proportion to within 0.05, you…

A: Given Information: Margin of Error (E) = 0.05 Sample proportion (p^) = 0.025 Sample size is…

Q: What is the effective Bayesian estimate for 0 when you think of obtaining P(x|D) by substituting an…

A: Statistical inference interprets the probabilities based on relative frequencies is referred to as…

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

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Q: A physician has to prescribe a dose of preventive medicine to all adult women in a town but has to…

A: The physician has taken a random sample of size 6 from a population having mean BMI μ(say). On the…

Q: A surplus store gives a scratch‑off ticket to 2000 customers as they leave with their groceries. Can…

A: The store gives a scratch-off ticket to 2000 customers as they leave with their groceries. The…

Q: A report about an isolated community claims there are more newborn females than males, although we…

A: State the hypotheses. That is, the frequencies of newborn females and males are equal. That is,…

Q: 4. The Profit P (in thousands of $) for a company in terms of the amount, s, spent on advertising…

A: Given model is, P=-0.1s3+6s2+400

Q: What is the standard error for the difference between the two means

A: here from given information  For Private  sample mean = x¯  = 42.5  s2x = 48.7 nx =  10   For pubilc…

Q: Find the relative error of p = 0.71 × 10-5 if its approximate value is p* = 0.70 × 10-5, and also…

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Q: in a memory experiment the rate of memorizing is given by M'(t)=−0.002t^2+0.9t, where M'(t) is the…

A: Given, M'(t) = -0.002t2 + 0.9t We have to find the no. of words are memorized in the first 10…

Q: When X; only takes two values {0, 1}, what are the possible values of the estimates of p?

A: Solution : Given that , X1,X2,...........Xn be a random sample from population.Considering…

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: A company specializing in building robots that clean your house has found that the average amount of…

A: Let A= average value E=marginal error B=correct value So, the range of B is: A-E≤B≤A+E

Q: Compute the standard error for the estimate p1 2. Round your answer to three decimal places.

A: Given that, the sample size of the first group n1 =110, the Number of successes =24 the sample size…

Q: The proportion of color blind individuals in a population needs to be estimated by the percentage…

A: Critical value: Using Excel formula “=NORM.S.INV(1-(0.05/2))”, the critical value at 99% confidence…

Q: The Law of Large Numbers states that as the number of observations in a sample increases, the mean…

A: Here we have given the multiple choice question about the law of large numbers. The Law of Large…

Q: It is desired to know the true proportion of divers who get "the bends" (sickness from nitrogen in…

A: Given: Zα=1.75Me=0.04p=0.21

Q: On a psychological test with H = 88 and o = 12 , Carlo scores 8 points below the mean, Nick had a…

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