Calculus and Above

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1. A health journal found that 56.3​% of college students
1. A health journal found that 56.3​% of college students who lived in coed dormitories consumed alcohol weekly​ (compared with​ 26.5% who lived in​ single-sex dormitories). A random sample of 150 stu… read more
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Questions 1. Assume that the average talk time on an Apple
Questions 1. Assume that the average talk time on an Apple iPhone is 20 hours and that this time follows the exponential probability distribution. What is the probability that a randomly selected iPho… read more
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Master's Degree
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1. Consider a population of 200 with a mean of 50 and a
1. Consider a population of 200 with a mean of 50 and a standard deviation equal to 29. What is the probability of obtaining a sample mean of 52 or less from a sample of 40​? Click here to view page 1… read more
Scott
Master's Degree
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A population of values has a normal distribution with μ = 17
A population of values has a normal distribution with μ = 17 and σ = 71.5 . You intend to draw a random sample of size n = 236 .Find the probability that a single randomly selected value is greater th… read more
rajeevanpillai
Master's Degree
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In 2016 Americans owed​ \$1.3 trillion in student loans. The
In 2016 Americans owed​ \$1.3 trillion in student loans. The default rates of college student loans determine eligibility for colleges to receive federal student aid. According to the Department of​ Ed… read more
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Master's Degree
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1. Find the indicated z score. The graph depicts the
1. Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. The indicated z score is? (Round to two decimal places as needed.) 2. Assume tha… read more
GLENN GILONGOS
Master of Mathematics
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Statistics Questions1. One thousand out of two thousand registered
Statistics Questions 1. One thousand out of two thousand registered voters sampled indicated they planned to vote for the Republican candidate for the state's U.S. senator. Using 0.95 degree of confid… read more
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Bachelor's Degree
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1.)The claim is the proportion of peas with yellow pods is
1.)The claim is the proportion of peas with yellow pods is equal to 0.25(0r 25%). The sample statistics from one experiment include 530 peas with 113 of them having yellow pods. Find the value of the … read more
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Bachelor's Degree
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1.)Based on a study of heights of men and women wh play basketball,
1.)Based on a study of heights of men and women wh play basketball, a researcher concludes that the exercise from playing basketball causes people to grow taller. Do you agree with the conclusion? Cho… read more
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Teacher
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Let us assume that the prices of regular unleaded gasoline
Let us assume that the prices of regular unleaded gasoline across the nation are normally distributed with a mean of \$3.60 and a standard deviation of \$0.32. Describe the shape and horizontal scaling … read more
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Bachelor's Degree
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"For Guru2009 only" 1. A random sample of fifty-five 200-meter
"For Guru2009 only" 1. A random sample of fifty-five 200-meter swims has a mean time of 3.98 minutes and a standard deviation of 0.06 minutes. Construct a 905 confidence interval for the population me… read more
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Master's Degree
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(3) An analyst processes one item every 30 minutes, so 16 items
(3) An analyst processes one item every 30 minutes, so 16 items are completed in her first day of work. Her manager checks her work by randomly selecting an hour of the day, then reviewing all the ite… read more
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Master's Degree
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I Calculated The Sample Mean For 12 Randomly Selected High
I calculated the sample mean for 12 randomly selected high school seniors' test scores. The mean was 908.3 and the sample standard deviation was 305.4. Can you construct a 99% confidence interval for … read more
Stevewh
Teacher
Bachelor's Degree
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Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
1. Describe the following variables as quantitative or qualitative,
1. Describe the following variables as quantitative or qualitative, and describe the scales of measurement. A. The distance a student commutes from home to campus. B. The rating of a stock as "strong … read more
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Bachelor'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 distribution… read more
SusanAthena
Master's Degree
Master's Degree
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Stats Questions,1. Assume a sample has been selected at
Stats Questions, 1. Assume a sample has been selected at random from a large population. Which of the following five statements is correct. A. The standard error equals the standard deviation of the s… read more
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Bachelor's Degree
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"StatsPro" 16.Suppose a simple random sample of 150 students
"StatsPro" 16.Suppose a simple random sample of 150 students is drawn from a population of 3000 college students. Among sampled students, the average IQ score is 115 with a standard deviation of 10. W… read more
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