: A sample of provided a sample mean of . The population standard deviation is .a. Compute the value of the test statistic (to 2 decimals). Enter negative value as negative number. b. What is the -value (to 3 decimals)

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Can someone me with this? i’m not sure what to put for my equations.

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected