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The population mean annual salary for environmental
The population mean annual salary for environmental compliance specialists is about \$63,500. A random sample of 40 specialists is drawn from this population. What is the probability that the mean sala… read more
R.R. Jha
Bachelor's Degree
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I have a prob I need help with. Do you want to own your own
Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy Express, The Fudge Company, Karmel Corn, and Rocky Mountain Chocolate Factory. Startup costs (in thousands of dollars) for a random sample of candy stores are given below. Assume that the population of x values has an approximately normal distribution. 90 177 128 96 75 94 116 100 85 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean startup cost x and sample standard deviation s. (Round your answers to one decimal place.) x = thousand dollars s = thousand dollars(b) Find a 90% confidence interval for the population average startup costs μ for candy store franchises. (Round your answers to one decimal place.) lower limit thousand dollars upper limit thousand dollars … read more
Ryan
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Need help on a homework JA: The Math Tutor can help you get
Ryan
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Weight loss for the first month of a diet program varies
1. Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distributio… read more
Math-John
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Assume that a sample is used to estimate a population
9. Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. Round the margin of error to four decim… read more
Chirag
Master's Degree
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1.) A study of college football games shows that the number
1.) A study of college football games shows that the number of holding penalties assessed has a mean of 2.3 penalties per game and a standard deviation of 0.8 penalties per game. What is the probabili… read more
Chirag
Master's Degree
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. Assume that the weight loss for the first month of a diet
. Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution… read more
Osbert12
Master's Degree
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1. Assume that the weight loss for the first month of a diet
1. Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distributio… read more
Chirag
Master's Degree
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8. The life span of a battery is normally distributed, with
8. The life span of a battery is normally distributed, with a mean of 2300 hours and a standard deviation of 50 hours. What percent of batteries have a life span that is more than 2365 hours? What per… read more
Ryan
Bachelor's Degree
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find the qppropriate minimum sample size. you want to be 95%
Please who can get me a fast answer to any of these 16. Solve the problem. The following confidence interval is obtained for a population proportion, p: (0.707, 0.745). Use these confidence interval l… read more
Stevewh
Teacher
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The amount of rainfall in January in a certain city is normally
The amount of rainfall in January in a certain city is normally distributed with a mean of 4.3 inches and a standard deviation of 0.3 inches. find the value of the quartile Q1?… read more
Chirag
Master's Degree
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The union for a particular industry has determined that the
The union for a particular industry has determined that the standard deviation of the daily wages of its workers is \$17. A random sample of 70 workers in this industry has a mean daily wage of \$122. F… read more
Ryan
Bachelor's Degree
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Question 1 . survey was conducted to measure the height of
Question 1 . survey was conducted to measure the height of men. In the survey, respondents were grouped by age. In the 20-29 age group, the heights were normally distributed, with a mean of 67.1 inche… read more
Stevewh
Teacher
Bachelor's Degree
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1. The diameter of ball bearings produced in a manufacturing
1. The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 6.8 to 8.5 millimeters. The probability that a randomly selected ba… read more
Stevewh
Teacher
Bachelor's Degree
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Hello, I would like help on homework with Intro to Statistics
Hello, I would like help on homework with Intro to Statistics (based on book by Agresti). There are total of 9 questions with 2 to 4 assignments. I would like it done bu July 8th, 6 pm mountain time. … read more
Chirag
Master's Degree
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Hi please help!! thank you. 1-In a random sample of 26 people , the mean number of books they null read in the past year was 13.67 books and standard deviation was 16.60 bboks. Assume the variable is … read more
Stevewh
Teacher
Bachelor's Degree
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Construct the 95% and 99% confidence intervals for the population
Construct the 95% and 99% confidence intervals for the population proportion p using the sample statistics below. Which interval is wider? If convenient, use technology to construct the confidence int… read more
Elizabeth
Master's Degree
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1.Construct the 95% and 99% confidence intervals for the population
1.Construct the 95% and 99% confidence intervals for the population proportion p using the sample statistics below. Which interval is wider? If convenient, use technology to construct confidence inter… read more
abozer
Bachelor's Degree
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