A 98% confidence interval of a population proportion is (0.62, 0.84). What is the margin of error? Round answer to 2 decimals

Q: Find the variance. Round your answer to one decimal place.

A: Given that  x 4 5 6 7 8 P(X=x) 0.2 0.2 0.2 0.2 0.2

Q: Do US college students read the local newspaper? To investigate the question a random sample of 500…

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Q: Find the median of the given data: 63,83,55,78,65,98,45,32,66

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Q: x    4    5    6    7    8 P(X = x)    0.2    0.2    0.2    0.2    0.2     Find the expected value…

A: It is given that the discrete frequency distribution in tabulation form.

Q: Suppose you want to play a carnival game that costs 5 dollars each time you play. If you win, you…

A: The ticket cost of the game is 5 dollars.

Q: 24 Frequency 20 16 12- 8- 4 T 0+ 70.5 13 75.5 Prealgebra Exam Scores 7 80.5 85.5 Scores 10 90.5 19…

A: Introduction: A histogram is a designated form of “ graph that can be utilized to exhibit the…

Q: *4.36 What is the mean of X?

A: From given data we have : the probability to test positive on the first test = P(A) = 5% =0.05 the…

Q: A recent survey of 1030 U.S. adults selected at random showed that 627 consider the occupation of…

A: According to the given information, we have Total number of U.S. adults selected = 1030 Given that…

Q: Determine the leaves for the given data points in the range 20 to 29 for this stem-and-leaf plot.

A: The data in ascending order is given by 24, 26, 27, 31, 32, 40, 41, 42, 44, 46, 47, 48, 53, 55, 56,…

Q: The 95% confidence interval of the variance of a population is computed as (12.367,21.761).…

A: Given information: The 95% confidence interval for the variance of a population is (12.367, 21.761).…

Q: Respondents Sex Age Smoking Status Exercise Weight IQ Score 1 Female 27 Moderate Light 120 118 2…

A: Hint: In excel, the median is calculated by using the median() function and selecting the data…

Q: A news organization surveyed 75 adults. Each said he or she gets news from only one source. Here is…

A: It is given that there are totally 75 adults are surveyed.

Q: What is the probability of denying entry to only 2 movie goers under age 15 and below if the cinema…

A: Given: Total students = 9 Number of students of illegal age = 4 Number of selected students = 6…

Q: The contingency table below contains data collected in a poll of 13.600 randomly selected voters…

A: Given data;     observed sample of 13660 voters       Republican Democrat Independent total…

Q: How did you come up with 77?

A:

Q: tens of thousands IDR 40 - 44.9 45 - 49.9 50 - 54.9 55-59.9 60 - 64.9 65 - 69.9 Define: a. Many…

A: Here we are given a table of statistics. From which we have to answer some questions.    (NOTE: As…

Q: can anyone tell me what condition has the faster reflex time according to the graph and how that…

A: Given Information: Consider the bar graph that shows the differences in patellar conduction velocity…

Q: From the definition, derive the moment generating function, Mx (t), for X with PDF ƒ(x) = { 2 0 2e…

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Q: QUESTION 1 1. A single card is drawn at random from each of three well-shuffled decks of playing…

A: Given information- We have given the three well-shuffled decks of playing cards. A single card is to…

Q: Dice Rolls:  If you roll a pair of fair dice, what is the probability of each of the following?…

A: From the provided information, A pair of fair dice rolled. Total outcomes = 6 × 6 = 36

Q: On a particular day, a restaurant that is open for lunch and dinner had 127 customers. Each customer…

A: a) The contingency table is given as follows:   Dessert No dessert Row Total Lunch 7…

Q: For the binomial distribution P(x) = C7,x(0.4)*(0.6)7-X, choose the correct histogram below and…

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Q: Identify the sampling technique used. A community college student interviews everyone in a…

A: According to the given information, we have Given that a community college student interviews…

Q: There is some speculation that a simple name change can result in a short-term increase in the price…

A: From the provided information, Mean (µ) = 0.80% Standard deviation (σ) = 0.18%

Q: A laboratory in Oregon is interested in finding the mean chloride level for a healthy resident in…

A: GivenMean(x)=104standard deviation(σ)=38sample size(n)=150confidence level=99%

Q: Goodness of fit test is a multinomial probability distribution. What aspects of the test satisfy the…

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Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion…

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Q: What is the least squares method and how is it used to find the estimated regression equation? What…

A: Definition: The least squares method is the most widely used procedure for developing estimates of…

Q: Let X represent the number of homes a real estate agent sells during a given month. Based on…

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Q: The life length, T, of an electric component is a random variable with hazard rate function h(t)=…

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Q: Consider data on heights of husbands and wives for a sample of 199 married couples in the UK…

A: Regression Equation: The Regression Equation is used to predict the response or dependent variable y…

Q: Each customer of a newspaper can sign up for weekday delivery and/or weekend delivery. The…

A: Let W denotes the events that the customer taught newspaper during the week  And  S be the event…

Q: If ₁2 = 13 = 823=4[r#1), then prove that 12 R₁23=R2.31 = R3-12 = √2 Itr

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Q: The mean life of a person who has had a heart transplant is about 12 years. Find the probability…

A: Answer: From the given data, Mean life of a person who has had a heart transplant is = λ = 12 years…

Q: Define &= EXShow the following using the properties of summation: n a. b. n&= X₁₂ [(x₁ - 8)² = [X² -…

A: Considering ai and bi as two random variables defined for the values i=1,2,...n, the properties of…

Q: The patient recovery time from a particular surgical procedure is normally distributed with a mean…

A: From the provided information, Mean (µ) = 6.7 Standard deviation (σ) = 1.5 X~N (6.7, 1.5)

Q: in the United States, the mean birth weight for boys is 3.41 kg, with a standard deviation of 0.55…

A: Given Information: Mean μ=3.41 Standard deviation σ=0.55

Q: 2. The stemplot below shows the weights of 30 male high school students from Small Rock High School.…

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Q: Consumer advocacy group is doing a large study on car rental practices. Among other things, the…

A: The random variable monthly Mileage follows normal distribution. The population standard deviation…

Q: x 44 55 66 77 88 P(X=x)P(X=x) 0.20.2 0.20.2 0.20.2 0.20.2 0.20.2   Find the value of P(X<8)P(X<8).…

A: Probability ranges between 0 to 1.

Q: *4.41 What is the expected number of otitis-prone families of 100 five-sibling families?

A: First we have to find The proportion of 5 sibling families which are otitis prone purely due chance

Q: Go to Yahoo!Finance and download data at the MONTHLY frequency for the stock `` Amazon.com Inc``…

A: Given Information: Consider the dataset of MONTHLY frequency for the stock `` Amazon.com Inc`` with…

Q: Obtain the equations of two lines of regression for the following data. Also obtain the estimate of…

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Q: Use the pop up below to find the area under the standard normal curve from 0 to - 2.75. Click the…

A: standard normal curve∴ Z~N(0,1)find area under curve from 0 to -2.75p(-2.75&lt;z&lt;0) = ?

Q: 4)A new procedure for the determination of sulfur in coal was tested on a standard coal sample with…

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Q: (a) The following output table was produced from a logistic regression model analysing a study to…

A: The logistic regression model is constructed using the variables death, impairment and age group.The…

Q: a. Find the probability that a response to Energy Star exceeds 4. b. Find the probability that a…

A: From given data we have : Mean μ=4.44Standard deviation σ=0.82

Q: Renal Disease The presence of bacteria in a urine sample (bacteriuria) sometimes associated with…

A: Given that         sample size n=100                             p=5%…

Q: During the Computer Daze special promotion, a customer purchasing a computer and printer is given a…

A: Given Total no.of difference software packages(n)=8No.of choices for customer to have free software…

Q: How many ways can an IRS auditor select 5 of 10 tax returns for an audit?

A: