A researcher would like to estimate the proportion of the population that has blue eyes. A random sample of 700 individuals indicates that 279 have blue eyes. The 90% confidence interval for the proportion of the population with blue eyes is indicated by which of the following? A. 36.9% to 42.9% B. 35.5% to 44.3% C. 30.1% to 49.9% D. 32.3% to 45.5%

A researcher would like to estimate the proportion of the population that has blue eyes. A random sample of 700 individuals indicates that 279 have blue eyes. The 90% confidence interval for the proportion of the population with blue eyes is indicated by which of the following? A. 36.9% to 42.9% B. 35.5% to 44.3% C. 30.1% to 49.9% D. 32.3% to 45.5%

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Given that degrees of freedom is 18 at 95% confidence level, the value of t =________.Select one:a. 1.383b. -1.717c. 2.101d. -1.383
A College Alcohol Study interviewed an SRS of 1000 college students about their drinking habits. Suppose that half of all college students "drink to get drunk" at least once in a while. That is sample proportion, p-hat 0.5. %3D 9. Estimate a 95% confidence interval for the actual percentage among all students. Round the number to nearest hundredth. O47% to 53% O 50% to 55% 43% to 52% O 44% to 56%
In a sample of 7 observations, the values are 17, 11, 12, 13, 14, 15. 16. Find the 95% confidence interval for the population mean. O A. (5.00, 9.00) O B. (4.00, 8.00) OC (12.00, 16.00) OD.(11.00, 15.00)
If [1740, 1850 is a confidence interval for a population mean. Find the margin of error. Select one: a. 60 O b. 80 C. 55 O d. 40
You are interested in constructing a 90% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 427 randomly selected caterpillars observed, 45 lived to become butterflies. a. Use 3 decimal places to complete the following statement: With 90% confidence the proportion of all caterpillars that lived to become a butterfly is between and . b. If many groups of 427 randomly selected caterpillars were observed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population proportion of caterpillars that become butterflies and about percent will not contain the true population proportion.
Answer Part B
50 of the 600 medical students who were chosen at random stated they intended to work in a rural area. Calculate the 90% confidence interval for the actual percentage of medical students who intend to practice in rural areas. The responses shown here are estimates.
The ?z value for a 96.6% confidence interval estimate is A. 1.96 B. 2.00 C. 2.12 D. 1.82
Ten engineering schools in the US were surveyed. the sample contains 250 electrical engineers, 80 being women; 175 chemical engineers, 40 being women. Compute a 90% confidence interval for the difference between the proportions of women in these two fields of engineering. Select one: O a. (0.02, 0.16) Ob. (0.01, 0.17] O. (0.04, 0.14) O d. [0.03, 0.15]
In a sample of 100 college students, 25 of them own a car. Calculate the 95% confidence interval for the true population of college students who own a car. Choose the closest one. A. (0.165132, 0.334868) B. (0.231725, 0.452302) C. (0.25, 0.75) D. (0.1, 0.9)
C. FIND t a n = 15 for the 98% confidence interval for the mean. %3D 2
The following is the number of hours of sleep obtained by eight college freshmen. Use the data to find a 92% confidence interval for the true mean number of hours of sleep by college freshmen. 7.5 8.0 6.5 24 8.5 6.5 7.0 7.5