stats
posted by Anonymous
The average GRE score for math in a sample of students is 490. When you create a 95% confidence interval around this average, the lower limit is 260. What is the upper limit for this 95% confidence interval?

PsyDAG
95% = 490 ± (490260)
Respond to this Question
Similar Questions

Stats
A random sample of 30 women drank an average of 15 cups of coffee per week during examination finals, with the sample standard deviation equal to 3 cups. A upper limit of an approximate confidence interval with 95% of the population … 
Statistics
suppose a random sample of 360 students is drawn form a population of students. Among sampled, the average IQ score is 12 with standard deviation of 3. What is the upper confidence limit of the 95% confidence interval of the population 
college statistic
A sample of 51 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x = 26 years. The population variance is 19. (a) Give a point estimate for μ. (Give your answer correct to one … 
STATs 353
Find the 98% confidence interval for estimating ìd based on these paired data and assuming normality. (Give your answers correct to one decimal place.) Before 68,58,64,62,58,67 After 40,42,46,37,45,38 Lower limit: Upper limit: 
UOP
5) In a 95% Confidence Interval, the true mean has what chance of falling between the Lower Limit and Upper Limits of the calculated confidence interval? 
math help
Two hundred fish caught in Cayuga Lake had a mean length of 14.1 inches. The population standard deviation is 2.9 inches. (Give your answer correct to two decimal places.) (a) Find the 90% confidence interval for the population mean … 
Math help
Could someone work one of these out so I can use as example. A sample of 59 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x = 25 years. The population variance is 20. (a) Give a … 
college stats
Again sorry for all the questions. please help, I am not good at stats and find these questions very difficult. I would appreciate an explanation if possible. 1.What is the sample average? 
Statistics
A sample of 53 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. = 25.7 years. The population variance is 12. (a) Give a point estimate for mu. (b) Find the 95% confidence interval … 
statistics
A sample of 65 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x bar = 25.2 years. The population variance is 28. (a) Give a point estimate for ì. (Give your answer correct to one …