For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies for dessert Find the 99% confidence interval

Q: Of 363 randomly selected medical students, 20 said that they planned to work in a rural community.…

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Q: Calculate the 95% and 99% population proportion confidence intervals for this finding.

A: Answer: Given that  the random sample of 100 people  n=100  r=74 The test statistics for population…

Q: Here are summary statistics for randomly selected weights of newborn​ girls: n=232​, x=32.3 ​hg,…

A: Given, Sample Size(n)=232 Sample Mean=32.3 Standard Deviation=6.5 Confidence Level=90%…

Q: A manager needs to know the proportion of employees who have insurance. He selects 200 employees and…

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Q: f. A sample of 60 Grade 10 students' ages was obtained to estimate the mean of all Grade 9 students.…

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Q: Construct the indicated confidence interval for the difference between population proportions p1 -…

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Q: A poll for a statewide election has a margin of error of 2.14 percentage points. How many voters…

A: From the provided information,Margin of error (E) = 0.0214Confidence level = 99%

Q: In the measurement of support for one party, the sample data were n = 1300 and p̂ = 0.21. Compute a…

A: Given data: n = 1300  p̂ = 0.21. Confidence level = 95 %

Q: In a sample of 100,40 said they preferred Pepsi to Coke. A 95% confidence interval for the…

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Q: Suppose you use simple random sampling to select and measure 47 dogs' weights, and find they have a…

A: Given, mean is 78 and standard deviation is 13.5. Sample number is 47. We with use one sample z…

Q: A researcher found that 62 of the 85 people randomly selected were in favor of reducing the sales…

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Q: A poll reported 38% support for a statewide election with a margin of error of 1.36 percentage…

A: Proportion of voters who supports for a statewide election Margin of error Confidence level

Q: For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies…

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Q: Using the 99% level of confidence, what is the confidence interval for proportion of students…

A: Let X be the random variable such number of students attending home football games. X = 750 N: Total…

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

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Q: In a recent random sampling, where 600 adults were surveyed, 16.4% indicate that they have fallen…

A: Given that, 600 adults were surveyed, 16.4% indicate that they have fallen asleep watching…

Q: A poll conducted randomly in 2014 found that 52% of U.S. adult Twitter users get at least some news…

A: Proportion is 0.52. The standard error 0.024 The absolute value of Zα/2 is 2.5758 using the Excel…

Q: Calculate a 95% upper confidence bound for the mean of a normally distributed population using the…

A: Given that, x = 32289  s = 2846  n=15  For 95% confidence interval,the z value is 1.96

Q: Construct the indicated confidence interval for the difference between population proportions p1-p2.…

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Q: In 2010, the proportion of Texans without health insurance was 0.11. To update this information a…

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Q: A poll reported 60% support for a statewide election with a margin of error of 3.35  percentage…

A: The question is about sample size estimationGiven :Proportion of voters who supports for a statewide…

Q: If the sample mean is 70 and the standard error of the sample mean is 8, what will be the 90%…

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Q: Find the margin of error that corresponds to a sample of size 210 with 70% successes at a confidence…

A: Sample size is 210. Percentage of successes is 70%. Percentage of confidence level is 90%.

Q: The lead levels in a random sample of 35 crows in the region were measured and recorded. The mean…

A: It is given that  Sample size n = 35 Sample mean M = 4.50 Sample SD s = 1.12 Confidence level = 99%…

Q: Suppose you calculate a 95% confidence interval for a proportion to to be: 0.39 to 0.78. Determine…

A: Given,   Lower bound = 0.39​ Upper bound = 0.78   Here, we use to determine the margin of error.

Q: Construct a 99% confidence interval to estimate the population mean using the data below. x=37 o=11…

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Q: In a random sample of 144 observations, the sample proportion is 0.90. Construct a 95% confidence…

A: given data sample size (n) = 144P^ = 0.9095% ci p.

Q: If X=72​, σ=13​, and n=66​, construct a 95​% confidence interval estimate of the population​…

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Q: For a sampling distribution of n = 800 and population proportion of 0.42 of those who prefer cookies…

A: We have find distribution...

Q: Assume that you took a sample and calculated the sample mean as 100.you then calculated the lower…

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Q: For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies…

A: n = 500 p = 0.48

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

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Q: Assume that a sample is used to estimate a population proportion p. To find the 95% confidence…

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Q: In a random sample of 184 college students, 97 had part-time jobs. Find the margin of error for the…

A: Given : Sample Size, n = 184 Number of successes, x = 97 confidence level,c=0.99

Q: If N=480 and p̂ (p-hat) =0.88, find the margin of error at a 95% confidence level.

A: From the provided information, Sample size (n) = 480 p̂ (p-hat) =0.88 Confidence level = 95%

Q: f. A sample of 60 Grade 10 students' ages was obtained to estimate the mean lot all Grade 9…

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Q: for a sample of 57 that has a mean of 6200 and a standard deviation of 254, calculate the 95%…

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Q: or a sample of 121 that has a mean of 6540 and a standard deviation of 780, calculate the 90%…

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Q: For a confidence level of 94%, find the critical value for a confidence interval on a one sample…

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Q: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the…

A: Given Information: Under age of 18  n1=480 x1=160 Over age of 18 n2=500 x2=140

Q: A simple random sample of 1000 people age 18 or over is taken in a large town. It turns out that 189…

A: The objective of this question is to calculate a 95% confidence interval for the percentage of…

Q: A researcher is attempting to calculate a 95% confidence interval for the mean average wingspan of…

A: The random variable wingspan follows normal distribution. We have to find the 95% confidence…

Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

A: The objective of this question is to calculate the margin of error for a sample proportion at a…

Q: Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of…

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Q: For a confidence level of 98%, find the critical value for a confidence interval on a one sample…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.