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☆☆☆☆☆Did you mean, "How do you calculate the 99.9 % confidence interval to a parameter using the mean and the standard deviation?" ?
The parameter is the population mean μ. Let xbar and s denote the sample mean and the sample standard deviation. The formula for a 99.9% confidence limit for μ is
xbar - 3.08 s / √n and
xbar + 3.08 s / √n
where xbar is the sample mean, n the sample size and s the sample standard deviation. 3.08 comes from a Normal probability table.
No, it is not. A 99% confidence interval would be wider.
Best regards,
NS
random sample
no
The best way to reduce sampling error is to use random sampling in the study. This means selecting the population to study through a random process. This will ensure that each member of the population under study has an equal chance of being selected.
7 hours
Analyzing and having a conclusive answer to any observational situation
1. 52 * 2.5 = 130 ounces of cereal in 5 boxes
2. 52/2 = 26 ounces of cereal in 1 box
26 * 5 = 130 ounces of cereal in 5 boxes
turn off the lights when you leave a room
95% confidence level is most popular
The results of her research were conclusive to her initial hypothesis.
The umbrella was drenched from the pouring rain.
I own a umbrella with yellow spots.
Emily bought a pink and white umbrella for her sister.
Error margin
its when subject mixes in with subject b and they create subject c
It depends on the size of the box. Usually they mesure the weight of cereal boxes with grams (g).
If we're talking about statistics: There is no superior observational study, each study has its advantages and disadvantages.
controlled experiment
Approx 5 hours
