Answer to Question #151034 in Statistics and Probability for Randal Rodriguez

Question

specify the null hypothesis (Ho) and the alternative hypothesis (Ha).

1) A researcher wants to determine if the mean monthly household expenditure is really P12,760 as published.
2) A health practitioner wants to know in the mean weight of girls at birth is at least 3.2 kg as per record of a particular hospital.
3) A producer of steel cables wants to test if the steel cables it produces have a breaking strength of 450 lb.
4) The DTI receives many complaints from consumers that the bottles of cooking oil sold by a company contain less than the 1 liter of oil advertised.

Answer 1

1.

H0: The mean monthly household expenditure is equal to P12760

Ha: The mean monthly household expenditure is not equal to P12760

2.

H0: Mean weight of girls at birth is greater or equal to 3.2kg

Ha: Mean weight of girls at birth is less than 3.2kg

3.

H0: Steel cables has a breaking strength of 450lb

Ha: Steel cables has not breaking strength of 450lb

4.

H0: The bottle of cooking oil produced contain less than or equal to 1litre of oil advertised

Ha: The bottle of cooking oil produced contain greater than 1litre of oil advertised