College tuition: A simple random sample of 40 colleges and universities in New York State has a mean tuition of $30,503 with a standard deviation of S6,372. Construct an 80% confidence interval for the mean tuition for all colleges and universities in New York State. An 80% confidence interval for the mean tuition for all colleges and univrersities is

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A: Given: n=100X¯=103 mg/sliceσ=10 mg/slice

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A: Given : n= 100.0 , x̄= 1.6 s= 0.5 At 95.0 % confidence level , z score= 1.96

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Q: 17. Television Viewing A study of 415 randomly selected kindergarten students showed that they have…

A: Given Data : Sample Size, n = 415 Sample Mean, x̄ = 5000 standard deviation,…

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Q: A sports shop selects a random sample and records the sales of items made in China and those made in…

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Q: A sociologist develops a test to measure attitudes towards public transportation, and 27 randomly…

A: Given information- Sample size (n) = 27 Mean x̅ = 73.8 Standard deviation (s) = 21.4 Significance…

Q: The Wall Street Journal reported that automobile crashes cost the United States $162 billion…

A: Givensample size(n)=55mean(x¯)=1613standard deviation(σ)=600

Q: Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample…

A: Given: Sample Sizen=12 Sample MeanX is calculated as: X=60+⋯+6612=72212=60.167 Sample Standard…

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A: Degrees of freedom:The formula for calculating degrees of freedom is

Q: 95%confidence interval estimate of the population standard deviation 64 60 60 56 60 54 61 60 61 70…

A: given data : 64,60,60,56,60,54,61,60,61,70

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A: Given, Population mean=39385 Population standard deviation=5975 sample mean=41680 sample size = 50…

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A: Given,   N Average Standard deviation Adults 75 1.8 0.6 Teenagers 75 1.3 0.3

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A: It is given that the sample size (n) is 51. The sample mean and standard deviation are 11.00 and…

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A: Given data

Q: C2. Average years of education are reported by social class based on data from the GSS 2018 Mean…

A: Given: L: Lower class W: Working class M: Middle class U: Upper class

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A: Given data : sample size, n = 5949 sample mean, x̄ = 2.86 sample standard…

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A: We have given that the hypothetical mean 51809, sample mean 45068, sample size 33 and standard…

Q: A random sample of 64 business students required an average of 50.7 minutes to complete a statistics…

A: Margin of Error E = z(alpha/2) * s / sqrt(n)Lower Bound = X - z(alpha/2) * s / sqrt(n)Upper Bound =…

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Q: A savings and loan association needs information concerning the checking account balances of its…

A: Given datan=14x¯=664.14s=297.29confidence interval is 90%

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A: Given Information: Mean μ=47.8 ppm Standard deviation σ=5 ppm Sample size n=40 Sample mean x¯=48.5…

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A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: a. Using an appropriate graph, see if it is plausible that the observations were selected from a…

A: Given:  242428282524.527.753022.52723.2528.2524.2526.2521.2523.521.519.7526.2526

Q: . A sociologist develops a test to measure attitudes about public transportation, and 20 randomly…

A: Answer - A sociologist develops a test to measure attitudes about public transportation,…

Q: The General Social Survey asked: “How many e-mails do you send in a day?” The results of 928…

A:

Q: A sociologist develops a test to measure attitudes about public transportation, and 20 randomly…

A: The confidence interval is a set of elements that have been imagined to comprise, with a specified…

Q: Community college instructors' salaries in one state are very low, so low that educators in that…

A: Given : Let X : Community college instructors salaries in one state  Sample size  of colleges (n) =…

Q: C2. Average years of education are reported by social class based on data from the GSS 2018. Mean…

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Q: An electrical firm manufactures light bulbs for LCD projectors. A randomly selected sample of 24…

A: We have given that,  Sample mean (x̄) = 600 hours, standard deviation (s) = 50 hours , sample size…

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Q: Listed below are speeds​ (mi/h) measured from traffic on a busy highway. This simple random sample…

A: Number of samples (n) = 12 63 3969 64 4096 64 4096 56 3136 64 4096 53 2809 61…

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A: The sample mean is obtained below: Thus, the sample mean is 844.375.   The sample standard…

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Q: The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly…

A: 1. Given: n=51s=0.37 The degrees of freedom is obtained as below: df=n-1=51-1=50 From the Chi Square…

Q: The Wall Street Journal reported that automobile crashes cost the United States $162 billion…

A: Given: n=50σ=600z for 95% CI=1.96

Q: College tuition: A simple random sample of 35 Colleges and universities in the united states had a…

A: Given,sample size(n)=35sample mean(x¯)=18702standard deviation(s)=10653degrees of…

Q: earch conducted a study of household television viewing time during the 7PM to 10PM time period…

A: As the population standard deviation is known, we will use z-distribution. The value of at80%…

Q: Community college instructors' salaries in one state are very low, so low that educators in that…

A: Given, Population mean, μ = $45,661 Sample mean, x = $43,024 Sample standard deviation, σ = $13,132…

Q: he following stemplot shows the swimming speeds, in kilometers per hour  (km/h), for a random sample…

A: xbar = 9.771 s = 0.944 n = 31

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A: HERE GIVEN, Seven pilots were tested in a flight simulator, and the time taken (in seconds) for each…

Q: The Wall Street Journal reported that automobile crashes cost the United States $162 billion…

A: Margin of error (E): The margin of error for the sample mean when the population standard deviation…

Q: consumption per capita. A sample of 347 individuals had a mean of 61 pounds consumed per year, with…

A: Finding the confidence interval:Given that, the sample size n = 347 and sample mean, x-bar =61 with…

Q: A cellular battery manufacturer claims that his battery when fully charged has mean life of 24 hours…

A: The set or collection of all possible observations is defined as the population.