Sinusitis and antibiotics. Researchers studying the effect of antibiotic treatment for acute sinusitis compared to symptomatic treatments randomly assigned 166 adults diagnosed with acute sinusitis to one of two groups: treatment or control. Study participants received either a 10-day course of amoxicillin (an antibiotic) or a placebo similar in appearance and taste. The placebo consisted of symptomatic treatments such as acetaminophen, nasal decongestants, etc. At the end of the 10-day period, patients were asked if they experienced improvement in symptoms. The distribution of responses is summarized below. 11(Garbutt et al. 2012.) Improvement Group No Yes Control 16 65 Treatment 19 66 Which of the following is an example of inferential statistics?

A molecule belongs to the C3v  point group. Using the C3v  character table, select all statements that is/are correct.

Figure below shows the results of seismic refraction test at a site with the top soft soil layer underlain by the bedrock. In order to decide the suitability of this site for deep foundation, depth to the bedrock must be determined. From the results of the seismic refraction test, calculate the depth to the bedrock, zc, and select the correct answer from the choices provided: Seismic Refraction.jpg

Increasing compactive effort generally increases maximum dry density and decreases optimum moisture content.

If L/B > [BLANK-1], the foundation is considered continuous. Settlement in cohesive soils is calculated using [BLANK-2] theory. Bearing capacity factors N c , N q , and N γ depend on the soil’s [BLANK-3]. Mat foundations seldom fail due to [BLANK-4] but almost always due to [BLANK-5] issues. (chose from settlement and bearing capacity to fill each blank of this statement)

Consider the following species: Na+, Mg, Al3+, Si and P3— Which of the following lists the species in order of increasing radius?

Consider the molecule FHF— . Select all that is/are TRUE about its MO generated by SALC. 

Which soil type exhibits immediate settlement upon loading?

Toe-bearing piles are most economical when:

Toe resistance refers to the axial resistance at the pile tip per unit area.