Ask a New Question

Using standard deviation. Normally distributed

find the 90% confidence interval for the variance and standard deviation of a sample of 16 and a standard deviation of 2.1
1. 1 answer
2. asked by Anon
3. 1,200 views
If a random variable X is normally distributed with mean μ and standard deviation σ, we use the notation: X~N(μ,σ).For
1. 1 answer
2. 40 views
9 points) In a normally distributed data set, find the value of the standard deviation if the following information is given.a.
1. 1 answer
2. asked by Sarah Nichols
3. 707 views
find the 90% confidence interval for the variance and standard deviation of the ages of seniors at Oak Park College if a sample
1. 3 answers
2. asked by Diandra
3. 3,067 views
A factory makes steel rods and steel tubes. The diameter of a steel rod is normally distributed with mean 3.55cm and standard
1. 1 answer
2. asked by Bob
3. 665 views
Eldon received 72 on his first calculus test. The marks were normally distributed with a mean of 60 and a standard deviation of
1. 1 answer
2. asked by josh
3. 543 views
Suppose scores on the mathematics section of the SAT follow a normal distribution with mean 540 and standard deviation 120. ACT
1. 0 answers
2. asked by Anonymous
3. 766 views
Suppose scores on the mathematics section of the SAT follow a normal distribution with mean 540 and standard deviation 120. ACT
1. 3 answers
2. asked by Anonymous
3. 2,068 views
80 U2 songs (in seconds) were selected at random. Assume that the data is normally distributed and that the bands entire
1. 1 answer
2. asked by Jenny
3. 1,289 views
Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. The
1. 1 answer
2. asked by joanne
3. 2,239 views