Chemistry, 05.05.2020 21:35 amandamiro05

Hand disinfection is frequently recommended for prevention of transmission of the rhinovirus that causes the common cold. A total of 212 volunteers were assigned at random to enter the hand-sanitizer group (HL+, which used the sanitizer every three hours or after handwashing) and the control group which was asked to use routine hand washing but avoid alcohol-based hand sanitizers.
Yes(infection) no(infection)
HL+ 49 67
Control 49 47
Do the data give good evidence that the above hand sanitizing practice reduced the chance of getting the common cold?

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 15:40, tristen2001

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

Answers: 3

continue

Chemistry, 22.06.2019 05:30, Dweath50

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Answers: 3

continue

Chemistry, 22.06.2019 14:30, malenacastillo4887

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

Answers: 3

continue

Chemistry, 22.06.2019 22:30, popt9710

Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?

Answers: 3

continue

You know the right answer?

Hand disinfection is frequently recommended for prevention of transmission of the rhinovirus that ca...