Pre-Calculus

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2 questions Suppose a university advertises that its average
for Scott, 2 questionsSuppose a university advertises that its average class size is 31 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like t… read more
Scott
Master's Degree
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2 questions A recent survey by the research institute showed
2 questions A recent survey by the research institute showed that 63​% of users of online dating sites say the number one thing​ they're looking for in a date or partner is common interests. Suppose y… read more
Scott
Master's Degree
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2 questions In​ 2017, the average credit score for loans
2 questions In​ 2017, the average credit score for loans that were purchased by a​ government-sponsored mortgage loan company was 746. A random sample of 35 mortgages recently purchased by the company… read more
Scott
Master's Degree
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2 questions A sporting goods store believes the average age
2 questions A sporting goods store believes the average age of its customers is 35 or less. A random sample of 47 customers was​ surveyed, and the average customer age was found to be 37.5 years. Assu… read more
Scott
Master's Degree
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The director of research and development is testing a new
The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.01 level that the drug stays in the system for less than 398 minutes. For a sample of 67… read more
Kofi
PhD in Statistics
Ph.D.
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Find the margin of error for the given values of​ c, sigma​,
Find the margin of error for the given values of​ c, sigma​, and n. cequals0.95​, sigmaequals2.4​, nequals100 LOADING... Click the icon to view a table of common critical values. Eequals nothing ​(Rou… read more
Kofi
PhD in Statistics
Ph.D.
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COLLEGE STATISTICS PROBLEM A community college Math
COLLEGE STATISTICS PROBLEMA community college Math instructor feels that the average age of community college students decreased since they started teaching 25 years ago. Looking up data from the year… read more
Kofi
PhD in Statistics
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Research subjects were followed from adolescence to
Research subjects were followed from adolescence to adulthood, and all the people in the sample were categorized in terms of whether they were obese or whether they were dating, cohabitating, or marri… read more
R.R. Jha
Bachelor's Degree
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An insurance company claims the average car on the road is
An insurance company claims the average car on the road is less than 6 years old. Based on a random sample of 15 cars, the mean age is 5.8 years with a standard deviation of 1.1 years. Does the sample… read more
akch2002
Master's Degree
3,682 satisfied customers
Question 1 of 40 2.5 Points A consumer group claims that the
Question 1 of 40 2.5 Points A consumer group claims that the mean running time for a certain type of flashlight battery is not the same as the manufacturer's claims. Determine the null and alternative… read more
Ryan
Bachelor's Degree
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Question 1 of 40 2.5 PointsA two-tailed test is conducted
Attachment: 2015-03-11_174342_question_1_of_40_exam_8_07.docx Question 1 of 40 2.5 Points A two-tailed test is conducted at the 5% significance level. What is the P-value required to reject the null h… read more
Ryan
Bachelor's Degree
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I see where you have already answered a homework assignment the same as this. Please let me know what the charge will be to get the answers. Questions 1 to 20: Select the best answer to each question.… read more
R.R. Jha
Bachelor's Degree
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A cooler at a picnic contains 100 cans of soda covered by ice.
A cooler at a picnic contains 100 cans of soda covered by ice. There are 28 cans of cola, 46 cans of orange soda, 14 cans of ginger ale, and 12 cans of root beer. The cans are all the same size and sh… read more
Osbert12
Master's Degree
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"For John Only " Hi John.. I noticed you have answered
"For John Only " Hi John.. I noticed you have answered similiar questions to the ones I would like for you to help me with. Hopefully you will be able to. 1. The commissioner of the state police is re… read more
Math-John
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FOR SCOTT ONLY, Hey scott, just checking in to see if you
FOR SCOTT ONLY, Hey scott, just checking in to see if you want to do the mathlab tonight at 6:30pm EST, if not I can do it tmrw or wednesday just let me know which works for you....also for that other… read more
Scott
Master's Degree
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I have the data for the below referenced analyis but it is
I have the data for the below referenced analyis but it is excel. Need your help again. Need it by Tomorrow at noon. Thanks John. Data Analysis Use binomial or normal probabilities We will learn that … read more
Math-John
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HO: µ = 70 H1: µ > 70 σ = 20, n = 100, xbar = 80, α = .01 a)
HO: µ = 70 H1: µ > 70 σ = 20, n = 100, xbar = 80, α = .01 a) calculate the value of the test statistic b) set up the rejection region. c) determine the p-value d) interpret the results… read more
Chirag
Master's Degree
10,329 satisfied customers
1. a) given the following hypotheses, determine the p-value
1. a) given the following hypotheses, determine the p-value when xbar = 21, n = 25, and σ = 5. Ho : µ = 20 H1 : µ ≠ 20 b) repeat part (a) with xbar = 22. c) repeat part (a) with xbar = 23. d) describe… read more
Chirag
Master's Degree
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