A researcher suspects that the mean birth weights of babies whose mothers did not see a doctor befor

Erin Lozano

Erin Lozano

Answered question

2022-06-21

A researcher suspects that the mean birth weights of babies whose mothers did not see a doctor before delivery is less than 3000 grams. The researcher states the hypotheses as H:x = 3000 grams H, x < 3000 grams.
These hypotheses are incorrect. What are the appropriate hypotheses for performing this significance test?
H 0 : x ¯ > 3000  grams;  H a : x ¯ < 3000  grams, where  x ¯ = the mean birth weights of the sample of babies whose mothers did not see a doctor before delivery.
H 0 : x ¯ < 3000  grams;  H a : x ¯ = 3000  grams, where  x ¯ = the mean birth weights of the sample of babies whose mothers did not see a doctor before delivery.
H 0 : μ = 3000  grams;  H a : μ 3000  grams, where  μ = the true mean birth weights of all babies whose mothers did not see a doctor before delivery.
H 0 : μ = 3000  grams;  H a : μ < 3000  grams, where  μ = the true mean birth weights of all babies whose mothers did not see a doctor before delivery.
H 0 : x ¯ = 3000  grams;  H a : x ¯ 3000  grams, where  x ¯ = the mean birth weights of the sample of babies whose mothers did not see a doctor before delivery.

Answer & Explanation

zalitiaf

zalitiaf

Beginner2022-06-22Added 27 answers

Given:
μ=3000
The correct hypotheses are below:
Null hypothesis:  H 0 : μ = 3000  grams Alternate hypothesis:  H a : μ =< 3000  grams
Thus, the appropriate hypotheses for performing this significance test is,
Answer:
H 0 : μ = 3000  grams;  H a : μ < 3000  grams, where  μ = the true mean birth weights of all babies whose mothers did not see a doctor before delivery.

Do you have a similar question?

Recalculate according to your conditions!

New Questions in College Statistics

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?