Answer:
Step-by-step explanation:
- A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
- An alternative hypothesis says that there is a statistical significance between two variables.
Claim 1. : Mean age of online dating service users is 40 years.
i.e. , since it has equals sign so we take this as null hypothesis.
Claim 2. : Mean age of online dating service users is not 40 years.
⇒ Null Hypothesis :
Alternative hypothesis :
Answer:
Step-by-step explanation:
JERRODHASCBASEBALLCARDS.LINDAHAS38BASEBALLCARDS,WHICHIS5MORETHANONE-THIRDTHENUMBERJERRODHAS.WHICHEQUATIONSHOWSANEQUALITYBETWEENTWODIFFERENTWAYSOFEXPRESSINGHOWMANYBASEBALLCARDSLINDAHAS?A.)C538B.)C538C.)3C538D.)1/3C538
✨✨HOPE IT HELPS✨✨
Answer:
I believe the independent variable is c, or amount of cars washed.
Step-by-step explanation:
You cannot make a profit without washing any cars. P, representing the profit, can only be determined after the amount of cars washed is known.
<u><em>I hope this makes sense! Let me know if I can help with anything else.</em></u>
To calculate hydronium concentration from pH, type on you calculator
10 to the power of negative pH value
10^-5.5 = 3•10^6 mol/L
Since there are 3 hydrogens in every hydronium molecule,
There are 9 • 10^6 hydrogens in that liter of acid.