Add your answer here.
Check out some similar questions!
Statistics using confidence interval [ 2 Answers ]
hi can you please help me I have a few questions but this one is important The quoted mean number of milligrams of sodium in a certain brand of low-salt microwave frozen dinners is 670mg. A random sample of 46 dinners is selected and found to have a mean of 685mg and standard deviation is 29mg....
95% confidence interval [ 2 Answers ]
39 nuts are gathered. They have an average size of 3.34 cent and a standard deviation of .45 cent. Find the 95% confidence interval for the mean size of all the nuts
Confidence interval [ 1 Answers ]
A researcher claims that the average age of people who buy lottery tickets is 70. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 16 at alpha+0.05 is there enough evidence to reject the researcher's claim
Confidence interval [ 3 Answers ]
A sample of the math test scores of 35 fourth-graders has a mean of 82 with a standard deviation of 15. Find the 95% confidence interval of the mean math test cores of all fourth-graders. Find the 99% confidence interval of th mean math test scores of all fourth-graders Which interval is...
Confidence interval [ 2 Answers ]
The Orange County Bureau of Weights and Measures reports that the Windsor Bottling Company pours 12 ounces of root beer in its cans. An employee at that company disputes this claim. She takes a random sample of 32 cans and finds average ounces of 11.3 with a standard deviationof .7. Test the null...
View more Mathematics questions Search