Mathematics, 26.06.2020 20:01, silasjob09
We wish to estimate what percent of adult residents in a certain county are parents. Out of 400 adult residents sampled, 296 had kids. Based on this, construct a 95% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places.
__< p <__ Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places.
p =__ ±±
2.
Giving a test to a group of students, the grades and gender are summarized below
A B C Total
Male 14 8 15 37
Female 13 18 12 43
Total 27 26 27 80
Let p represent the population proportion of all female students who received a grade of C on this test. Use a 95% confidence interval to estimate p to four decimal places if possible.
___< p <
3. Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 308 with 136 successes. Enter your answer as an open-interval (i. e., parentheses) using decimals (not percents) accurate to three decimal places.
C. I. =
4. Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 276 with 36% successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places.
__ < p <___
Answers: 1
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Mathematics, 21.06.2019 23:30, reycaden
The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x
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Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample
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We wish to estimate what percent of adult residents in a certain county are parents. Out of 400 adul...
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