Answer:
a. True
Step-by-step explanation:
By ∝= 5% we mean that there are about 5 chances in 100 of incorrectly rejecting a true null hypothesis. To put it in another way , we say that we are 95% confident in making the correct decision.
In the given question the null hypothesis is
H0: u ≤ 1 hour and Ha: u > 1 hour
So there is a 5% chance that the erroneous conclusion will be made that students spend on average more than 1 hour per assignment.
The given statement is true.
Answer:
hope this helps A chair that costs $210 was reduced by 40% for a one-day sale. After the sale, the sale price was ... SALE. tmsysWOW!$10 OFF ... off. 1.83. 169 99. Buy 1 Large Cheese Pizza for $12.50,. Get the 2nd for 1 offi ... Tai has a coupon for 20% off his total. Tax is. 8.25%. Find the total cost of Tai's purchase after the discount and tax.
Step-by-step explanation:
So, here you have to look at the periodic table and see what the molar mass of each molecule composing the water compound

its two hydrogen atom plus an oxygen molecule, making it about 18g per mol.
That said, looking at the mass, we have to ask ourselves, if a mol of water contains 18g of mass, how many moles do we have in 0.5g of water?
We just do a cross multiplication:
Answer:
i- ;-;
Step-by-step explanation: