1 Required information A certain type of stainless steel powder is supposed to have a mean particle diameter of
\mu =15\mu m
. A random sample of 87 particles had a mean diameter of
15.2\mu m
. The population standard deviation is
1.8\mu m
. A test is made of
H0:\mu =15
versus H :
\mu ~~15
. Find the
R
value. (Round the final answer to four decimal places.) Numeric Response

Question

1 Required information A certain type of stainless steel powder is supposed to have a mean particle diameter of

\mu =15\mu m

. A random sample of 87 particles had a mean diameter of

15.2\mu m

. The population standard deviation is

1.8\mu m

. A test is made of

H0:\mu =15

versus H :

\mu ~~15

. Find the

R

value. (Round the final answer to four decimal places.) Numeric Response

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