justporter11
contestada

The number of sit-ups that all tenth-grade girls can do in 5 minutes is normally distributed. Beth surveyed 20 of her fellow intramural tennis players, all tenth-grade girls, and determined the mean number of sit-ups they could do. Can she make an inference about the population mean for all tenth-grade girls based on the sample?​

Respuesta :

Answer:

B. No, because she did not use a simple random sample.

MrRoyal

The true statement is: No, because she did not use a simple random sample.

From the question, we have the following highlights:

  • Population: All tenth-grade girls
  • Sample: 20 intramural tennis players

The 20 intramural tennis players cannot represent all tenth-grade girls.

This is so because the selection is biased, and as such it cannot be used to make inference about the overall population

Hence, the true statement is (b)

Read more about random sampling at:

https://brainly.com/question/25725757