Answer:
C
Step-by-step explanation:
Diameter=circumference/pi so the answer is 3598.17
Answer:
12.6
Step-by-step explanation:
use pi r squared to get the answer
The answer would be 472.5 correct me if i’m wrong.
Answer:
1. H0: σ2 ≤ 0.0008
Ha: σ2 > 0.0008
2. test statistic = 32.625
3. p value = 0.2931
4. D
Step-by-step explanation:
s² = 0.0009
alpha = 0.05
σ² = 0.0008 this is the value that we would be testing
1. <u>hypothesis</u><u>:</u>
H0: σ2 ≤ 0.0008
Ha: σ2 > 0.0008
2. <u>test </u><u>statistic</u><u>:</u>
X² = (n-1/σ²)s²
= ((30-1)/0.0008)0.0009
= 32.625
3. <u> </u><u>p-value:</u>
P(X² > 32.63) = 0.2931
4. <u>conclusion</u><u>:</u>
the p-value at 0.2931 is greater than alpha at 0.005, (0.2931>0.05). So the correct option is D. we do not reject H0. the sample does not support conclusion that the population variance specification is being violated.