Express the confidence interval 35.5 % +7% in the form of a trilinear inequality. *
Q: If n=100 and X = 80, construct a 95% confidence interval. Enter your answer as an open-interval…
A: Sample proportion: Z-critical value: Point estimate Margin of error Round to three decimal…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: The effectiveness drug is of a blood-pressure being investigated. An experimenter finds that, on…
A: Sample size n=28 Sample mean x=40.3 Sample standard deviation s=6.2 The data is normally…
Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Here, x=67.4, s=21.1, and n=28. Here, confidence level is 0.99. Thus, α=0.01=1-0.99.
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Given information:It is given that mean reduction in systolic blood pressure is 34.7 (x-bar); the…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval…
A: The question is about confidence interval Given : Sample size ( n ) = 346 sample prop. of success (…
Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…
A: The known values are, X=115, n=365. The point estimate of population proportion is, Using standard…
Q: Express the confidence interval 308.6±77.5308.6±77.5 in the form of a trilinear inequalit
A: confidence interval for population mean : 308.6±77.5 we have to represent it in trilinear…
Q: 140 students at a college were asked whether they had completed their required English 101 course,…
A: Given Information Total Students(n) = 140 No of students who have completed their English course(x)…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: Assume that a sample is used to estimate a population mean u. Find the 80% confidence interval for a…
A: Given: x=15.3s=18.6n=862
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Given : Sample Size, n = 778 Sample Mean, x̄ = 74.5 sample standard…
Q: Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval…
A: Sample size (n) = 345 Number of successes (x) = 171 The sample proportion can be obtained as:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: given data sample size (n) = 22sample mean ( x¯ ) = 59.7sample standard deviatio (s) =16.580% ci for…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: If n=200 and X = 160, construct a 99% confidence interval. Enter your answer as an open-interval…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: x¯=43.6, n=25, s=9.2, α=0.05
Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…
A: Find z-critical value:…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: given data, n=28s=19.4x¯=54.9CI=0.98α=1-.98=0.02df=n-1=28-1=27normal distributionwe have to find out…
Q: he effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: It is given that sample mean is 17.7 and the standard deviation is 17.9.
Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…
A: Step 1: Assume that p is the population proportion of the number of successes. The sample size and…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Solution: Let X be the reduction in systolic blood pressure. From the given information, x-bar=79.4,…
Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 100…
A: The point estimate of the population proportion is the sample proportion. From the given table, 12…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Given X-bar=75.8 n=424 Standard deviations=9.5
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: In a survery of 313 households, a Food Marketing Institute found that 131 households spend more than…
A: Given information Total Household(n) = 313 No of Households spend more than $125(x) = 131
Q: Assume the sample is used to estimate a population mean. Find the 80% confidence interval for a…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A:
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Given Data: x¯=59.4n=21s=8.6 Degree of freedom=n-1=23
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: The degrees of freedom is,
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: The sample size is 27, sample mean is 74.1, and standard deviation is 12.6. The level of…
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: From the given information,
Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…
A: Given,n=181x=101p^=xnp^=101181=0.55801104971-p^=0.4419889503α=1-0.95=0.05α2=0.025Z0.025=1.960…
Q: Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence…
A: We have given that Sample size n=353 , sample proportion p^=27%=0.27
Q: Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence…
A: We have given thatp = 55% = 0.55q = 1 - p = 0.45n = 320Significance level (α) = 1 - 0.995 = 0.005
Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…
A: Given information Sample size (n) = 23 Sample mean = 36.7 Sample standard deviation = 5.8 population…
Q: Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval…
A: Find z-critical value:…
Q: the reduction in systolic blood pressure is 46.5 for a sample of size 20 and standard deviation…
A: We have given that, Sample mean (x̄) = 46.5, standard deviation (s) = 14.9 and sample size (n) = 20…
Step by step
Solved in 2 steps with 2 images
- Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interval for a sample of size 400 with 195 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. Find using the appropriate table ( )< p <( ) To avoid any rounding off error, please compute at 2 more digits before rounding off.Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 199 with 28 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places.______ < p < _____Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 22.5 for a sample of size 24 and standard deviation 15.5. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 80% confidence level). Assume the data is from a normally distributed population. Enter your answer as a tri-linear inequality accurate to three decimal places. < μμ <
- We wish to estimate what percent of adult residents in Ventura County like chocolate. Out of 100 adult residents sampled, 82 like chocolate. Based on this, construct a 99% confidence interval for the proportion (p) of adult residents who like chocolate in Ventura County. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.Confidence interval = Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p < Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places. p = ±The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 29.6 for a sample of size 954 and standard deviation 13.9.Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 90% confidence level).Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). < μμ <The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 66.2 for a sample of size 704 and standard deviation 14.2. (a) Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 99% confidence level). Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). < 4 < (b) Interpret the confidence interval specific to this problem. Use the box below to tell me what you used to get the confidence interval in part (a).
- The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 56.9 for a sample of size 20 and standard deviation 14.3. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 90% confidence level). Assume the data is from a normally distributed population. Enter your answer as a tri-linear inequality accurate to three decimal places. < � <The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 68.7 for a sample of size 30 and standard deviation 9.1. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 98% confidence level). Assume the data is from a normally distributed population. Enter your answer as a tri-linear inequality accurate to three decimal places.< μμ <The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 19.8 for a sample of size 642 and standard deviation 9.3.Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 95% confidence level).Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).___________ < μ < _________Answer should be obtained without any preliminary rounding
- Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval for a sample of size 284 with 162 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. ______< p < _____Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.DinuWe wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adult residents sampled, 10 had kids. Based on this, construct a 99% 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 =