A market research company wishes to know how many energy drinks adults drink each week. They want to construct a 90 % confidence interval for the mean and are assuming that the population standard deviation for the number of energy drinks consumed each week is 1.3. The study found that for a sample of 1083 adults the mean number of energy drinks consumed per week is 3.5. Construct the desired confidence interval. Round your answers to one decimal place. Answer O Tables Keypad How to enter your answer Keyboard Shortcuts Lower endpoint: Upper endpoint:

Q: A psychologist is studying the self image of smokers, as measured by the self-image (SI) score from…

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Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

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Q: The winning   score in 5 high school basketball games was recorded. If the sample mean is 62.3…

A: Given information- Sample size, n = 5 Mean, x-bar = 62.3 Sample standard deviation, s = 11.0 Since…

Q: The weight of football players is normally distributed with a mean of 200 pounds and a standard…

A: Given,mean(μ)=200standard deviation(σ)=25

Q: A survey was conducted that asked 1002 people how many books they had read in the past year. Results…

A: Confidence interval is a part of interval estimation. It is the boundary that is used to estimate…

Q: A survey was conducted that asked 1012 people how many books they had read in the past year. Results…

A: Solution The procedure for constructing 95% confidence interval is as follows

Q: find the margin of error of a 99% confidence interval for the mean score of all student

A: It is given that  Sample mean = 93 Sample standard deviation, s = 7 Sample size, n = 30

Q: Use the range rule of thumb to identify the values that are significantly low, the values that are…

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Q: A Population has a Mean of 90 and a standard deviation of 25.  A sample of 20 college students is…

A:

Q: There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on…

A: From the provided information, For ACT score: Mean (µ) = 21.5 Standard deviation (σ) = 5.4 For SAT…

Q: Tom runs a large animal shelter. At Tom's shelter, the length of stay for puppies has a mean of 76…

A: Given,mean(μ)=76standard deviation(σ)=13and X=41

Q: Kelsey Matthau is an advisor for a high school. The high school offers a class for students…

A: The Given hypothesis test for the difference between two means of independent samples is…

Q: VIupw v This question: 1 point(s) possIble A survey was conducted that asked 1013 people how many…

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Q: Three potential employees took an aptitude test. Each person took a different version of the test.…

A: The z-score will be used to answer the given question. The formula for the z-score is z=x-μσ that…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

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Q: SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a…

A: The SAT scores, mean, and standard deviation are:The ACT scores, mean, and standard deviation are:

Q: A survey was conducted that asked 1018 people how many books they had read in the past year. Results…

A: Since population standard deviation is unknown, use t-distribution to find t-critical value. Find…

Q: Three potential employees took an aptitude test. Each person took a different version of the test.…

A: given data  norma x1 = 84.5   μ1 = 67.5    σ1 = 10rebecca x2 = 306.5   μ2 = 293    σ2 = 27morgan x3…

Q: At a tennis tournament a statistician keeps track of every serve.  The statistician reported that…

A: GivenMean(μ)=100standard deviation(σ)=9

Q: Three potential employees took an aptitude test. Each person took a different version of the test.…

A: The raw score of Cade is 95.5. For Cade's version of the test, the mean, μ=64.7, and the standard…

Q: Thirty randomly selected students took the calculus final. If the sample mean was 74.2 and the…

A: From the provided information, Sample size (n) = 30 Sample mean (x̅) = 74.2 Standard deviation (s) =…

Q: Find the 95%95% confidence interval for the average value of net income given that sales are…

A: From the given information, a regression analysis has been performed to estimate the model. Here,…

Q: The mean score on the ACT test was 21.5 and the standard deviation was 5.0. The mean score on the…

A: ACT score μ1 = 21.5σ1 = 5.0x1 = 26SAT score μ2 = 515σ2 = 100x2 = 605 which score will relatively…

Q: A college administrator wants to learn about the mean SAT score of students who attend math tutoring…

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Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a survey…

A: The sample size is 1072, 67% say they are willing to get a second or part-time job to pay for their…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 105   and a standard…

A: It is given that the mean and standard deviation are 105 and 15, respectively.

Q: Three potential employees took an aptitude test. Each person took a different version of the test.…

A: From the provided information, Pierce got a score of 71.5 with mean (µ) = 62.5 and standard…

Q: A survey was conducted that asked 956 people how many books they had read in the past year. Results…

A: From the provided information, Sample size (n) = 956 Sample mean (x̅) = 14.1 Sample standard…

Q: You are applying for a job at two companies. Company A offers starting salaries with p= $30,000 and…

A: Given problem Given that   You are applying for a job at two companies. Company A offers starting…

Q: What test scores are significantly low? Select the correct answer below and fill in the answer…

A: It is given that Mean = 22.6 And SD = 4.9

Q: A survey was conducted that asked 1005 people how many books they had read in the past year. Results…

A: Given,sample meaan(x¯)=14.3sample standard deviation(s)=16.6sample size(n)=1005degrees of…

Q: Social Networking Sites A recent survey of social networking sites has a mean of million visitors…

A: Number of social networking sites =6Mean=13Standard deviation = 3.2The confidence interval formula…

Q: In this exercise, you will compare Chebyshev’s rule and the empirical rule. a. Compare the estimates…

A: a)The Chebyshev’s rule estimates at least 75% of observations lie within two standard deviations of…

Q: A survey was conducted that asked 972 people how many books they had read in the past year. Results…

A: From the provided information, Sample size (n) = 972 Sample mean (x̅) = 14.1 Standard deviation (s)…

Q: A population has a Mean of 100 and a standard deviation of 15.  A sample of 20 college students is…

A: Given information- Population mean, µ = 100 Sample mean, x-bar = 125 Population standard deviation,…

Q: Gabriel and Lucia took a road trip across the country. The room costs, in dollars, for their…

A: K=3---standard deviations Total number=12

Q: unts how many meteors she se

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Q: Four students take tests.  The results of each test for the class and the student are listed in the…

A: a) John scored an 85 Mean(μ)=77 standard deviation(σ)=4

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.