Answer to Question #332468 in Statistics and Probability for zuli

Question

Jam, a cat lover, has five pet cats at home. She feeds them

organic cat food because she claims that feeding the cats

with cat food had an impact on the cats’ lifespan. According

to a study, the mean lifespan of cats is 12 years.

1. State the null hypothesis (in words and symbols)
2. State the alternative hypothesis (in words and symbols)
3. Is the test one-tailed or two-tailed? Explain in 1-2 sentences.
4. Explain whether the decision was correct or not.

For item 4, use the decision below as your reference.

The null hypothesis was not rejected, and it was found out later that feeding cats with

organic food do not impact a cat’s lifespan.