After finding the sample proportion , and the margin of Error E, express the confidence interval...
After finding the sample proportion , and the margin of Error E, express the confidence interval 0.4 < p < 0.64 in the form of ± E.
Homework Answers
Solution :
Point estimate = 
= (Lower confidence interval + Upper confidence interval ) / 2
Point estimate =
= (0.4+0.64) / 2=0.52
Margin of error = E = Upper confidence interval -
= 0.65-0.52=0.13
In the form of :
-+ E
0.52±0.1
Add Answer to:
After finding the sample proportion , and the margin of Error E,
express the confidence interval...
Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.660)...
Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.660) E= (Type an integer or a decimal.) p=(Type an integer or a decimal.)
To calculate a confidence interval, the margin of error (E) must first be calculated. The Margin...
To calculate a confidence interval, the margin of error (E) must first be calculated. The Margin of Error, E, for means is: E = 1.96*s/sqrt(n), where s is the sample standard deviation, n is the sample size. The “sqrt” stands for square root. The Margin of Error, E, for proportions is: E = 1.96*sqrt[p*(1-p)/n], where s is the sample standard deviation, n is the sample size, and p is the proportion. Use the Confidence Interval formula above, and the correct...
Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p , the margin of error, and the confidence interval. A...
Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p , the margin of error, and the confidence interval. Assume the results come from a random sample. A 95% confidence interval for the proportion of the population in Category A given that 18% of a sample of 450 are in Category A. Round your answer for the point estimate to two decimal places, and your...
Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.658)...
Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.658) E(Type an integer or a decimal.) (Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample proportion. (0.664,0.692)...
Use the given confidence interval to find the margin of error and the sample proportion. (0.664,0.692) E=(Type an integer or a decimal.) Ô=(Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample proportion. (0.783,0.807)
Use the given confidence interval to find the margin of error and the sample proportion. (0.783,0.807)
Recall the formula for a proportion confidence interval is p^?zp^(1?p^)n?????????<p<p^+zp^(1?p^)n????????? Thus, the margin of error is...
Recall the formula for a proportion confidence interval is p^?zp^(1?p^)n?????????<p<p^+zp^(1?p^)n????????? Thus, the margin of error is E=zp^(1?p^)n????????? . NOTE: the margin of error can be recovered after constructing a confidence interval on the calculator using algebra (that is, subtracting p^ from the right endpoint.) In a simple random sample of size 59, taken from a population, 20 of the individuals met a specified criteria. a) What is the margin of error for a 90% confidence interval for p, the population...
Determine the margin of error for a 99% confidence interval to estimate the population proportion with...
Determine the margin of error for a 99% confidence interval to estimate the population proportion with a sample proportion equal to 0.90 for the following sample sizes. a. nequals100 b. nequals180 c. nequals260 LOADING... Click the icon to view a portion of the Cumulative Probabilities for the Standard Normal Distribution table. a. The margin of error for a 99% confidence interval to estimate the population proportion with a sample proportion equal to 0.90 and sample size nequals100 is nothing.
sample should be taken to provide a 95% confidence interval with a margin of error of...
sample should be taken to provide a 95% confidence interval with a margin of error of .05? At 95% confidence, how large a sample should be taken to obtain a margin of error of .03 for the estimation of a population proportion? Assume that past data are not available for developing a planning value for p* 34.
Determine the sample size needed in forming a 95% confidence interval for a proportion with margin...
Determine the sample size needed in forming a 95% confidence interval for a proportion with margin of error of 0.04. (Use the “safe approach” for the population proportion (i.e., p=.50) Repeat part a.) for a margin of error of 0.02.
Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.660) E= (Type an integer or a decimal.) p=(Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample proportion. (0.630,0.658) E(Type an integer or a decimal.) (Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample proportion. (0.664,0.692) E=(Type an integer or a decimal.) Ô=(Type an integer or a decimal.)
Use the given confidence interval to find the margin of error and the sample proportion. (0.783,0.807)
sample should be taken to provide a 95% confidence interval with a margin of error of .05? At 95% confidence, how large a sample should be taken to obtain a margin of error of .03 for the estimation of a population proportion? Assume that past data are not available for developing a planning value for p* 34.
Most questions answered within 3 hours.
-
Consider the competitive environment of Starbuck's, Progressive
Insurance, a manufacturing firm with low turnover, or a...
asked 32 minutes ago -
3. Gains from trade
Consider two neighbouring island countries called Euphoria and
Contente. They each have...
asked 2 hours ago -
A business executive has the option to invest money in two
plans: Plan A guarantees that...
asked 4 hours ago -
Hello, can someone please help me answer this question?
How much heat is absorbed by a...
asked 4 hours ago -
. A marketing researcher conducted a survey of 25 shoppers
randomly selected at the local mall...
asked 5 hours ago -
Create an comprehensive response to the
following:
Antimicrobial agents work on a multitude of microbes (bacteria,...
asked 5 hours ago -
6.13 LAB: Step counter. Section 6.3.
A pedometer treats walking 2,000 steps as walking 1 mile....
asked 4 hours ago -
(14.2) A block of mass m = 10 kg riding on a frictionless
horizontal plane is...
asked 5 hours ago -
Use any search engine to search for articles about Starbucks
partnership with Tata Companies in India...
asked 4 hours ago -
Let’s say that for some reason Bank Excess Reserves suddenly
increase sharply. What effect would this...
asked 5 hours ago -
Given:
Curent Assets: $600,000
Total Assets: $2,600,000
Current Liabilities: $500,000
Total Liabilities: $1,700,000
What is the...
asked 5 hours ago -
1. What is a “Bankster”? What is insider trading? Why is it
illegal?
2. What is...
asked 5 hours ago