Please help with this! is my only hope because google won't help, my teacher didn't post the right PowerPoint snd my parents don't know this stuff ):

Weights of golden retriever dogs are normally distributed. samples of weights of golden retriever dogs, each of size nequals15, are randomly collected and the sample means are found. is it correct to conclude that the sample means cannot be treated as being from a normal distribution because the sample size is too small? explain.

What do nitrifying bacteria convert

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity