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Find the population standard deviation

An unknown population X has a mean of 128 and a standard deviation of 32. A random sample of size n=64 are drawn from the
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A study found that citizens spend on average $1950 per year on groceries with a standard deviation of $100. Assume that the
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2. asked by Cam
3. 732 views
A simple random sample of size 15 has mean x=41.8 and the population standard deviation is o=3.72. The population is normally
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2. 24 views
poppulation with a mean=100,standard deviation population=10, and n=40.1) find mean of all values in apoplution. 2) find
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2. asked by Anonymous
3. 485 views
You take and SRS of size 25 from a population with mean 200 and standard deviation of 10. Find the mean and the standard
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2. asked by Ryan
3. 923 views
When estimating a population mean, you must use t procedures rather than normal curve procedures when:A. the standard deviation
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2. 82 views
Assume the population distribution of FEV is normal with standard deviation 400 mLi.(a) find P(E) is n=15 and population mean is
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2. asked by Sam
3. 458 views
Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth.6,7,19,7,18,7 A. mean = 9;
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2. asked by Veronika
3. 2,125 views
The mean of a sample of 25 was calculated as xbar = 500. The sample was randomly drawn from a population whose standard
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2. asked by Joe
3. 736 views
A population has a mean of 17 with a standard deviation of 2. A sample of 50 items from that population has a mean of 16.5 with
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2. 65 views