She must take all of the jellybeans. If she only takes out a certain number of jellybeans then there could be a probability that all colors won't come. By taking all of them out she could be sure.

3 0

3 years ago

Scores on the Gillian Autism Rating Scale (GARS) are normally distributed with a mean of 100 (µ =100) and a standard deviation o

skelet666 [1.2K]

Answer:

The answer is below

Step-by-step explanation:

a) Given that the number of sample (n) = 64, therefore the since n > 30, the distribution of the sample means is going to be normally distributed.

b) The mean of the distribution of sample means (also known as the Expected value of M) is equal to the population mean μ.

$\mu_x$ = μ = 100

c) The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

$\sigma_x=\frac{\sigma}{\sqrt{n} } =\frac{15}{\sqrt{64} } =1.875$

6 0

3 years ago