# statistics

mu=78
population std deviation=12
Normal Distribution
n=16
alpha level=.05

* compute the power of the hypothesis test if the program has a 3-point effect.
I came up with 83.88 %

* compute the power of the hypothesis test if the program has a 6-point effect.

I looked at the example in the book and I'm just not understanding! Help. Thanks.

1. 👍
2. 👎
3. 👁

## Similar Questions

1. ### Math (Statistic)

Considered the sampling distribution of a sample mean obtained by random sampling from an infinite population. This population has a distribution that is highly skewed toward the larger values. a) How is the mean of the sampling

2. ### statistics

what are the mean and standard deviation of a sampling distribution consisting of samples of size 16? these sameples were drawn from a population whose mean is 25 and who standard deviation is 5. a. 25 and 1.25 b. 5 and 5 c. 25

4. ### Statistics

The t distribution should be used when ___. the sampling population is not normal the sampling population is unimodal The sampling distribution is normal and the population standard deviation is unknown the population standard

1. ### statistics

Given a sample size of 38, with sample mean 660.3 and sample standard deviation 95.9 we are to perform the following hypothesis test. Null Hypothesis H0: ƒÊ = 700 Alternative Hypothesis H0: ƒÊ ‚ 700 At significance level

2. ### Statistics

If it is claimed that the contents of soaps boxes sold weigh on average at least 20 ounces. The distribution of weight is known to be normal; We assume \sigma = 0.5σ=0.5 is known n=30 sample mean weight = 18.5 ounces. Test at the

3. ### Statistics

Let X be a single (i.e. n=1 ) Gaussian random variable with unknown mean μ and variance 1 . Consider the following hypotheses: H0:μ=0vsH1:μ≠0. Define a test ψα:R→{0,1} with level α that is of the form ψα=1{fα(X)>0},

4. ### Statistics

Trying to finish an assignment: What happens to the power of the z test when the standard deviation increases? and Is the shape of a sampling distribution always the same as that of the null hypothesis population? Thanks! As the