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A random sample of 60 voters found that 42% were going to
A random sample of 60 voters found that 42% were going to vote for a certain candidate. Find the 99% limit for the population proportion of voters who will vote for that candidate.… read more
akch2002
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In a political poll, 598 registered voters and surveyed, and
In a political poll, 598 registered voters and surveyed, and 280 say that they plan to vote for Candidate A. Construct a 99% confidence interval for the population proportion of voters who plan to vot… read more
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A newspaper recently conducted a survey of a random sample
A newspaper recently conducted a survey of a random sample of 120 registered voters in order to predict the winner of a local election. The Republican candidate was preferred by 60 of the respondents.… read more
Sandhya
Sandhya
Master's Degree
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ARE THERE CHARGES IN VOLVED, According to a​ research,
According to a​ research, 52.052.0​% of households nationwide used natural gas for heating during a year.​ Recently, a survey of 2 comma 3002,300 randomly selected households showed that 53.053.0​% used natural gas. Use a 0.05 significance level to test the claim that the 52.052.0​% national rate has changed. Formulate the null and alternative hypotheses. Choose the correct answer below. A. Upper H 0H0​: pnot equals≠0.520.52​, Upper H Subscript aHa​: pequals=0.520.52 B. Upper H 0H0​: pgreater than>0.520.52​, Upper H Subscript aHa​: pless than<0.520.52 C. Upper H 0H0​: pequals=0.520.52​, Upper H Subscript aHa​: pgreater than>0.520.52 D. Upper H 0H0​: pequals=0.520.52​, Upper H Subscript aHa​: pnot equals≠0.520.52 Find the test statistic. zequals= nothing ​(Round to one decimal place as​ needed.) Find the​ P-value for the found test statistic. ​P-valueequals= nothing ​(Round to four decimal places as​ needed.) Now make a conclusion. Choose the correct answer below. A. There is not enough information to make a conclusion. B. There is not sufficient evidence to support the claim that the percentage of households using natural gas has changed. C. There is sufficient evidence to support the claim that the percentage of households using natural gas has changed … read more
GLENN GILONGOS
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Question 1 Assume that the weight loss first month
Question 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 dis… read more
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Chapter 6 00. The average rent in a city is $1,570 per month
Chapter 6 00. The average rent in a city is $1,570 per month with a standard deviation of $200. Assume rent follows the normal distribution. Use the empirical rule to answer the following questions. a… read more
akch2002
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3. A research institute polled asked repondents if they acted
3. A research institute polled asked repondents if they acted to annoy a bad driver. In the poll n=2410 and x=1020 who said that they honked. Use 95% confidence level. a. find the best point estimate … read more
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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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Let p be the population proportion for the following condition.
Let p be the population proportion for the following condition. Find the point estimates for p and q. In a survey of 1543 adults from country A, 641 said that they were not confident that the food the… read more
Math-John
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A newspaper wants to estimate the proportion of Americans who
A newspaper wants to estimate the proportion of Americans who will vote for Candidate A. A random sample of 1000 voters is taken. Of the 1000 respondents, 526 say that they will vote for Candidate A. … read more
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Find the critical value x2r based on the given information
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1) Question 1 (Q3)- a random sample of n=100 observations is
1) Question 1 (Q3)- a random sample of n=100 observations is selected from a population with µ=30 and o=23. Approximate the probabilities shown below. a. P(x̄ ≥28 b. P(22.1≤ x̄ ≤ 26.8) c. P(x̄≤ 28.2) … read more
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Calculate the standard error. (Round your answers to 4 decimal
Calculate the standard error. (Round your answers to 4 decimal places.) Standard Error (b) n = 50, π = .20 (c) n = 100, π = .10 (d) n = 500, π = .005 Find a confidence interval for μ assuming that eac… read more
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Find the margin of error for the given values of c, s, and
Find the margin of error for the given values of c, s, and n. C=0.95, s=2.3, n=49 E=_________ (Round to three decimal places as needed) Construct the confidence interval for the population mean µ. C= … read more
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16. In a survey of 630 males ages 18-64, 391 say they have
16. In a survey of 630 males ages 18-64, 391 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and com… read more
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Sandhya
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Find the mean for the given sample data. Unless indicated otherwise,
Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values. The students in Hugh Logan's math class to… read more
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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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Master's Degree
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A newspaper want to estimatethe proportion of Americans who
A newspaper want to estimatethe proportion of Americans who will vote for Candidate A. A random sample of 1000 voters is taken. of the 1000 respondents, 526 say that they will vote for candidate A. Wh… read more
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