In an experiment of normal body temperatures in degrees Fahrenheit, 6 males ages 25-40 were given a random temperature check. The results were as follows: 97.1      99.0     98.2    98.9   98.1   99.4 a. Construct and interpret a 95% Confidence Interval for the average normal body temperature of males ages 25-40. b. Construct and interpret a 95% Prediction Interv

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A: From the provided information,Confidence level = 92.2%

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A: The (1-α)% confidence interval for the difference in population proportions p1-p2 is given by;…

Q: A poll of 827 students at Alpha State College found that 61% of those polled preferred a quarter…

A: Given that Sample size n = 827 Sample proportion of students who prefer a quarter system = 0.61 The…

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A: when the given sample size is less than 30, then we say that this is a small sample test. The…

Q: Construct a 95% confidence interval for the proportion of people who performed any volunteer work…

A: It is given as Favourable cases, x = 517Sample size,, x = 517Confidence level = 95%

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A:

Q: A survey of several 8 to 11 year olds recorded the following amounts spent on a trip to the mall:…

A: The amounts spent on a trip to the mall is 19.36,29.95,7.82,8.36,21.07,14.06,22.22

Q: From a simple random sample of 400 of the 1,395 colleges in our population, it was found that…

A: Given : 1395 colleges in our population  Population Size (N) = 1395 400 colleges selected randomly…

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A: We are given that 95% confidence interval is correctly calculated from the given data as (0.12,…

Q: A poll for a statewide election has a margin of error of 2.14 percentage points. How many voters…

A: From the provided information,Margin of error (E) = 0.0214Confidence level = 99%

Q: In a sample of 100,40 said they preferred Pepsi to Coke. A 95% confidence interval for the…

A:

Q: A poll reported 38% support for a statewide election with a margin of error of 1.36 percentage…

A: Proportion of voters who supports for a statewide election Margin of error Confidence level

Q: In a random sample of 850​ Americans, 385 reported that they work two jobs. Which of the following…

A: The known values are, The sample proportion is,

Q: Suppose we observed 120 successes in a random sample of 300 subjects. What is the 98% confidence…

A:

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

A:

Q: Given two dependent random samples with the following results: Population 1 29 32 42 43 23 30 21…

A: Data are given  Population 1 29 32 42 43 23 30 21 Population 2 23 46 44 48 35 21 18   We want  to…

Q: If n=41n=41, ¯xx¯=36, and s=9s=9, find the margin of error for a 80% confidence level.

A: Answer - Given, Sample size n = 41,    x  = 36    and s = 9               80% confidence interval…

Q: A survey of several 9 to 11 year olds recorded the following amounts spent on a trip to the mall:…

A: From the provided information,Sample size (n) = 7Confidence level = 95%

Q: sample of 16 students was taken from university. These students spent an average of $170 on books…

A:

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 437 green peas…

A:

Q: In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of them use the Internet…

A: We want to calculate the 90% confidence interval for each of the following proportions

Q: In a random sample of 39 criminals convicted of a certain​ crime, it was determined that the mean…

A:

Q: A chemist made eight independent measurements of the melting point of tungsten. She obtained the…

A: The population confidence interval for mean for student's t is given as, X¯±tsnwhere n=sample size…

Q: General Social

A:

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

Q: A poll reported 60% support for a statewide election with a margin of error of 3.35  percentage…

A: The question is about sample size estimationGiven :Proportion of voters who supports for a statewide…

Q: o test the effect of a physical fitness course on one's physical ability, the number of sit-ups that…

A: Solution:  Let x = Sit ups before  and y = Sit ups after  x y d=y-x (d-d) (d-d)2 34 49 15 7.1…

Q: which of the following sample data: sample size= 100 sample mean= 34oz/hr sample variance= 9oz/…

A: which of the following sample data:   sample size= 100   sample mean= 34oz/hr   sample variance=…

Q: The County Development Agency does a survey of all the mobile home manufacturers in Clarion County…

A:

Q: A survey of 20 people asked, “If you’ve ever been married, how old were you when you were first…

A:

Q: In a survey of 1002 people, 70% said that they voted in a recent presidential election. In…

A: n=1002

Q: An insurance company collects data on seat-belt use among drivers in a country. 90% confidence…

A: Givenn1=2000p1^=28%=0.28P2^=xn2=4821500=0.32α=1-0.90=0.10α2=0.05zc=zα2=z0.05=1.6449      (from z…

Q: A certified mechanic wąs timed for the repair of an automobile on 14 separate occasions. Over the…

A: The edited data is Certified 344 276 257 334 267 167 22 343 212 175 211 311 209 188 Trainee 252…

Q: A survey of credit card holders revealed that Americans carried an average credit card balance of…

A: M1=$3900M2=$3300n1=400n2=450σ1=$880σ2=$810

Q: Given two independent random samples with the following results: n₂ = 510 n₁ = 685 x₁ = 38 x2 = 287…

A: The given results are: .

Q: One hundred and twenty Americans were surveyed about how much time per month they spend watching…

A: From the provided information, Sample size (n) = 120 Sample mean (x̅) = 140 hours Sample standard…

Q: A sociologist develops a test to measure attitudes towards public transportation, and 37 randomly…

A: given that,sample mean, x =58.5standard deviation, s =19.7sample size, n =37standard error = sd/…

Q: Given two dependent random samples with the following results: Population 1 2020 3030 3232 3333…

A: Two dependent random samples are given.

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A:

Q: A sample of freshman takes a reading comprehension test and their scores are summarized below.…

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Q: Out of a 54 person sample from our fall Math-150 classes, 12.4% of the students are left-handed.…

A: Given information: n=54p^=0.124x=54×0.124x=6.696Confidence level=80%

Q: A simple random sample of 1000 people age 18 or over is taken in a large town. It turns out that 223…

A: From the provided information, Sample size (n) = 1000 223 people in the sample are newspaper…

Q: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the…

A: Given Information: Under age of 18  n1=480 x1=160 Over age of 18 n2=500 x2=140