F. CRISPR Cas9, Inc which makes Protein for Gene therapy has received complaints of inconsistent quantities in its packaging. Packed correctly, the weight of the box should be 200 grams. A small sample of 25 packets showed a sample mean of 208 grams. From the past experience, the standard deviation is known to be 20 grams. CRISPR Cas9 uses a level of significance of 5%. 1. What is the p-Value? Should we reject the Null?
We have to manually calculate this using a standard Z table. I calculated the p value as .0459. Professor says the real answer is .0455003
Help me understand wrong answer.
Also, this should be a 1 tail correct?
The p value corresponding to... View the full answer