A proposed null hypothesis states that there is no difference in the water consumption of households of two districts. The sample mean difference is found to be 8.5 liters, and the standard deviation of the distribution of the difference in sample means is 4.5 liters. Which statement is true?

Question

emmanuel77m · Answer

@Daniee_Bruhh

emmanuel77m · Answer

A. The null hypothesis must be accepted if we choose the 68% confidence level. 
B. The null hypothesis must be accepted if we choose the 95% confidence level. 
C. The null hypothesis must be rejected if we choose the 99.7% confidence level. 
D. The null hypothesis must be rejected if we choose the 100% confidence level.

daniee_bruhh · Answer

I have no idea how to do this lol I'm so sorry! But Maybe someone else could help? @Dani_Rose

emmanuel77m · Answer

No worries haha thanks anyway ;)

emmanuel77m · Answer

I got it, it's B :)

daniee_bruhh · Answer

Lol okay and That's Great!! Your like a genius :p