Methodology as listed on page 2 of the report:
“Journalists from all known media organisations were sent an email invitation to an online survey.”
“Approximately 1200 invitations were sent. Of these, 359 completed the full survey, a response rate of 29.9%.”
“We estimate we have a confidence interval of 4.56% at the 95% confidence level, giving a margin of error of + or – 2.25%.”
“We base this on an estimated population of 1600 full-time print (inc online) and broadcast journalists.”
“This is the population as recorded in the most recent NZ Government census (2018), which recorded approximately 1200 print and 400 broadcast journalists.”
Under the methodology given on how they reached these findings, 359 out of 1200 invitations have participated, so out of the 29.9% the rest is just guesstimates. Then goes on to say it’s based on 1600 full time print and broadcast journalists from the 2018 census. Sounds like a kids homework project