Calculus and Above

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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
rajeevanpillai
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To conduct a test of hypothesis with a small sample, we make
To conduct a test of hypothesis with a small sample, we make an assumption that ___________. the confidence interval will be wider than for large samples the population is normally distributed a large… read more
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The mean daily production of a herd of cows is assumed to be
The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 33 liters, and standard deviation of 6.4 liters.A) What is the probability that daily production is les… read more
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Business Weekly conducted a survey of graduates from 30 top
Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is $133,000. Assume the stan… read more
Kofi
Kofi
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According to a survey in a​ country, 38​% of adults do not
According to a survey in a​ country, 38​% of adults do not own a credit card. Suppose a simple random sample of 600 adults is obtained. Complete parts​ (a) through​ (d) below. ​(a) Describe the sampli… read more
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Ann
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According to a survey in a​ country, 17​% of adults do not
According to a survey in a​ country, 17​% of adults do not own a credit card. Suppose a simple random sample of 400 adults is obtained. Complete parts​ (a) through​ (d) below.​(a) Describe the sampling distribution of ModifyingAbove p with caret​, the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of ModifyingAbove p with caret below. A. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis greater than or equals 10 B. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis greater than or equals 10 C. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10 D. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10 Determine the mean of the sampling distribution of ModifyingAbove p with caret. mu Subscript ModifyingAbove p with caret Baseline equals nothing ​(Round to two decimal places as​ needed.) Determine the standard deviation of the sampling distribution of ModifyingAbove p with caret. sigma Subscript ModifyingAbove p with caretequals nothing ​(Round to three decimal places as​ needed.)​(b) What is the probability that in a random sample of 400 ​adults, more than 21​% do not own a credit​ card? The probability is nothing.​(Round to four decimal places as​ needed.) Interpret this probability. If 100 different random samples of 400 adults were​ obtained, one would expect nothing to result in more than 21​% not owning a credit card.​(Round to the nearest integer as​ needed.)​(c) What is the probability that in a random sample of 400 ​adults, between 16​% and 21​% do not own a credit​ card? The probability is nothing.​(Round to four decimal places as​ needed.) Interpret this probability. If 100 different random samples of 400 adults were​ obtained, one would expect nothing to result in between 16​% and 21​% not owning a credit card.​(Round to the nearest integer as​ needed.)​(d) Would it be unusual for a random sample of 400 adults to result in 64 or fewer who do not own a credit​ card? Why? Select the correct choice below and fill in the answer box to complete your choice.​(Round to four decimal places as​ needed.) A. The result is not unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is greater than​ 5%. B. The result is unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is greater than​ 5%. C. The result is not unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is less than​ 5%. D. The result is unusual because the probability that ModifyingAbove p with caret is less than or equal to the sample proportion is nothing​, which is less than​ 5%. … read more
Neo
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Business Weekly conducted a survey of graduates from 30 top
Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 189000 dollars. Assume th… read more
Kofi
Kofi
PhD in Statistics
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Suppose a simple random sample of size nequals150 is
Suppose a simple random sample of size nequals150 is obtained from a population whose size is Upper N equals 10 comma 000 and whose population proportion with a specified characteristic is p equals 0.… read more
Sandhya_sharma
Sandhya_sharma
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
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Refer to the following information for Questions 21, 22, and
Refer to the following information for Questions 21, 22, and 23. The heights of pecan trees are normally distributed with a mean of 10 feet and a standard deviation of 2 feet. 21. What is the probabil… read more
Ryan
Ryan
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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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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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The GPA of students in a large university follows a normal
The GPA of students in a large university follows a normal distribution with an average 3.05 and SD of 0.45. Find the chance that a student's GPA is greater than 3.5. Answer a. 95% b. 14.89% c. 68% d.… read more
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I need this within the hour Please see the questions below
I need this within the hour Please see the questions below - Any explanation would help. A random selection of registered voters within the state of California guarantees that: a. at least some regist… read more
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Ryan
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I need help with a intoduction to statistics quiz. 20 questions
I need help with a intoduction to statistics quiz. 20 questions and they are multiple choice.… read more
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Problem Set 5 1) Complete exercise 7.11, 7.15, 7.27 (parts
Problem Set 5 1) Complete exercise 7.11, 7.15, 7.27 (parts a and c only), 7.11 A simple random sample of n = 300 full-time employees is selected from a company list containing the names of all N = 5,0… read more
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Ryan
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Find the critical value x2r based on the given information
Find the critical value x2r based on the given information sample size 5 and confidence level 98%… read more
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Ryan
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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
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