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A courier service company wishes to estimate the proportion
A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the true proportion is 0.04.If 384 are sampled, what is the probability that… read more
R.R. Jha
Bachelor's Degree
Bachelor's Degree
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Suppose 58% of the doctors in America are dentists. If a
Suppose 58% of the doctors in America are dentists.If a random sample of size 425 is selected, what is the probability that the proportion of doctors who are dentists will be less than 63%? Round your… read more
R.R. Jha
Bachelor's Degree
Bachelor's Degree
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Suppose 58% of the doctors in America are dentists. If a
Suppose 58% of the doctors in America are dentists.If a random sample of size 577 is selected, what is the probability that the proportion of doctors who are dentists will be less than 54%? Round your… read more
R.R. Jha
Bachelor's Degree
Bachelor's Degree
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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
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
Bachelor's Degree
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Need help on a homework JA: The Math Tutor can help you get
Ryan
Bachelor's Degree
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Hi, I have some intro-level Statistics extra credit and review
Hi, I have some intro-level Statistics extra credit and review work today; I just got off work (6 pm pacific, 9 pm eastern) and I only have an hour or so to work on it before I have to head to my othe… read more
Chirag
Master's Degree
10,329 satisfied customers
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
10,329 satisfied customers
a door delivery florist wished to estimate the proportion of
a door delivery florist wished to estimate the proportion of persons in his city that will purchase flowers. Suppose the true proportion is 0.04. If 250 are sampled, what is the probability that the s… read more
dhouse1940
Retired
Master's Degree
625 satisfied customers
Let x be a random variable that represents the weights in kilograms
Let x be a random variable that represents the weights in kilograms (kg) of healthy adult female deer (does) in December in a national park. Then x has a distribution that is approximately normal with… read more
suprabhatai
Bachelor's Degree
479 satisfied customers
A courier service company wishes to estimate the proportion
A courier service company wishes to estimate the proportion of persons in various states that will use its service. Suppose the true proportion is 0.05. If 478 are sampled, what is the probability tha… read more
dhouse1940
Retired
Master's Degree
625 satisfied customers
Consider the following A door delivery florist wishes to
Consider the following: A door delivery florist wishes to estimate the proportion of persons in his city that will purchase his flowers. Suppose the true proportion is 0.07. If 305 are sampled, what i… read more
Sandhya_sharma
Master's Degree
3,517 satisfied customers
Consider the following Goofys fast food center wishes
Consider the following: Goofy's fast food center wishes to estimate the proportion of people in its city that will purchase its products. Suppose the true proportion is 0.06. If 493 are sampled, what … read more
Sandhya_sharma
Master's Degree
3,517 satisfied customers
According to records, the amount of precipitation in a certain
According to records, the amount of precipitation in a certain city on a November day has a mean of inches, with a standard deviation of inches. What is the probability that the mean daily precipitati… read more
Scott
Master's Degree
16,043 satisfied customers
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
6,427 satisfied customers
Identify the class width, class midpoints, and class boundaries
Identify the class width, class midpoints, and class boundaries for the given frequency distribution. 45-48 1 49-52 3 53-56 5 57-60 11 61-64 7 65-68 7 69-72 140008.1625273495… read more
muvee
Master's Degree
1,030 satisfied customers
FOR SCOTT Suppose that pulse rates among healthy adults are
FOR SCOTT: Suppose that pulse rates among healthy adults are normally distributed with a mean of 81 beats/second and a standard deviation of 8 beats/second. What proportion of healthy adults have puls… read more
Scott
Master's Degree
16,043 satisfied customers
FOR SCOTT The unemployment rate in a city is 15 %. Find the
FOR SCOTT : The unemployment rate in a city is 15 %. Find the probability that more than 1 out of 10 people from this city sampled at random are unemployed. Round your answer to four decimal PLaces. ?… read more
Scott
Master's Degree
16,043 satisfied customers
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