Find the margin of error E assuming that a simple random sample is used to estimate a population proportion p with information n=200 and p=0.33 at 99% confidence level.

Q: Use the t-distribution and the sample results to complete the test of the hypotheses.

A: The sample size is n = 100 Sample mean = 105.1 And sample SD = 15.5 Level of significance = 0.05

Q: Find the 98% confidence interval for the variance of a normal distribution of the diameters of 9…

A: The diameters of 9 soccer balls; n=9 The sample mean is 22 cm and sample standard deviation 0.5cm…

Q: 3. Compute for the sample size if the margin of error is 12, with a sample standard deviation of 35…

A: The z-critical value for a 95% confidence interval is calculated using the excel formula…

Q: Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 23.…

A: It is given that the sample size is 23 and the confidence level is 0.90.

Q: Find the indicated margin of error. Out of 330 trials, 150 turned out positive. Find the margin of…

A:

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: The confidence interval is 0.679,0.707. The margin of error is, E=Upper bound-Lower…

Q: A manager is interested in determining if the population standard deviation has dropped below 88.…

A: Given that Sample size n = 23 Sample SD s = 71 Level of significance = 0.10

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Given,confidence interval=(0.764, 0.790)

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: From the provided information, Confidence interval is (0.751, 0.777)

Q: Find the sample size necessary for a 99% confidence level with maximal margin of error E = 2.00 for…

A: Solution

Q: What is the minimum sample size required to estimate a population mean with 95% confidence when the…

A: We have given that,  Margin of error (E) = 1.6 and population standard deviation (σ) = 10.65 and…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: The given confidence interval for p is (0.779, 0.803). The value of margin of error is,

Q: Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 12.…

A:

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: To find the margin of error(E) and the sample proportion(p^)? given confidence interval…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: The solution is given below

Q: What is the minimum sample size required to estimate a population mean with 95% confidence when the…

A: Given, standard deviation, σ = 10.75 margin of error, E = 1.9

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 23.…

A:

Q: Determine the margin of error for the confidence interval for the mean: 21+1.2 The margin of error…

A: Confidence Interval formula for mean is given by, => (X bar + - z* sigma/√n) Where X bar is mean.…

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

A:

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A:

Q: Assume the random variable X is normally​ distributed, with mean μ=59 and standard deviation σ=9.…

A: Solution: From the given information, X follows normal distribution with mean µ=59 and a standard…

Q: Determine the margin of error for the confidence interval for the proportion: 0.557 < μ< 0.837 The…

A: It is given that the confidence interval for proportion is as follows: 0.557 &lt; µ &lt; 0.837.

Q: a. How many workers are there in each stratum? b. Estimate the mean forced vital capacity among the…

A: Here population is 1200(i.e. workers employing at a plant). Out of 1200 sample is taken of size 40.…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: The formula of the margin of error using the confidence limits is, Where,   UCL denotes the upper…

Q: A simple random sample of 400 individuals provides 100 Yes responses. a. What is the point estimate…

A: It is given that a random survey, 100 responses (x) in “Yes” in a sample of 400 individuals (n).…

Q: e. Find the critical value for 99% confidence level based on your computed sample size.

A: Given: Sample size n=20 Confidence level 99%

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: The confidence interval is CI = (0.589,0.619) CI = (LB,UB)

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Given: confidence interval ( 0.66 , 0.688 ) Need to find sample mean(x̄) and margin of error(ME) .

Q: Determine the margin of error for an 80% confidence interval to estimate the population mean with…

A: Given that  Confidence level (C) = 80%  Population standard deviation (σ) = 48   We know that…

Q: A manager is interested in determining if the population standard deviation has dropped below 138.…

A: Given that the sample size is n = 19, sample SD s = 130 Level of significance is 0.10

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Plug in all the values in the formula, we get Therefore,

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A:

Q: In a random sample of six ​people, the mean driving distance to work was 24.3 miles and the…

A:

Q: Determine the margin of error for the confidence interval for the proportion: 0.518 <p<0.774 The…

A: We have to find margin of error

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

A:

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Confidence interval is given, (0.619, 0.647)

Q: Assume the random variable X is normally​ distributed, with mean μ=50 and standard deviation σ=7…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A:

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Solution: From the given information, the confidence interval for the population proportion is…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A:

Q: ← Use the given confidence interval to find the margin of error and the sample proportion.…

A: Given that  Confidence interval.  (0.755 , 0.779)

Q: Assume the random variable X is normally​ distributed, with mean μ=47 and standard deviation σ=8.…

A:

Q: What is the estimated standard error for a paired sample t test using the following data:  Standard…

A: Solution: It is given that the standard deviation of the difference score is 5 and the sample size…

Q: Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 25.…

A: Given data, n=25 α=0.10tc=?

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Let the confidence interval for population proportion is (a, b) Margin of Error : E =b-a2 Sample…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A:

Q: Use this fact to derive an exact 95% confidence interval for the population variance o?.

A:

Q: Determine the margin of error for the confidence interval for the mean: 16+1.5 The margin of error…

A: We have given confidence interval is- 16 ± 1.5 Since we know that, Confidence interval = the…

Q: A sample of size 78 produced the sample mean of 16.4. Assuming the population standard deviation…

A: Givensample size(n)=78sample mean(x)=16.4standard deviation(σ)=3.3α=1-0.99=0.01α2=0.005Critical…

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 13.…

A: Given sample size = n = 13Degree of freedom = n-1 = 13-1 = 12Given we need 95% confidence interval.…