The researcher wants to investigate whether carpet makes a difference in the mean bacterial concentration in air. the null and alternative hypotheses would be:
H0: The mean of the carpeted rooms = the mean of the uncarpeted rooms
Ha: The mean of the carpeted rooms ≠ the mean of the uncarpeted rooms
The attention of bacteria majorly depends on the awareness of inoculum, incubating temperature, and the metabolic country of inoculated pressure used. The bacterial concentration suspended in growth media may be calculated.
In idea, you could listen to cells through filtration or centrifugation, but likely no greater than a hundredfold. for your case, you're asking to concentrate by 10,000 fold. So you sincerely might want to develop denser cultures of cells. You can centrifuge your modern broth and resuspend the pallet in a clear broth.
In microbiology, the minimal inhibitory attention (MIC) is the lowest concentration of a chemical, generally a drug, which prevents the visible boom of a bacterium or bacteria.
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I think it’s 1. retail clerk
Answer: D. A very friendly and engaging personality during the interview that just makes the interviewer like the applicant
Explanation:
To be a great sales associate one skill is paramount, interpersonal skills.
The person needs to be able to relate well with others and this is helped by them having a friendly and engaging personality that draws people to them and makes people like the sales person which will make them more trusting of the goods recommended by the sales person.
The person in option D has this and as such has a better chance of being a good sales associate at the retail store.
Answer:
C:an increase in both the inflation and real growth rates in the short run.
Explanation:
According to the AD-AS model, if the economy is initially at its long-run potential growth rate, then a temporary increase in the growth rate of investment spending will cause an increase in both the inflation and real growth rates in the short run.
Answer:
wP = 114.5 / 514.6 = 0.2225 or 22.25%
Explanation:
The WACC or weighted average cost of capital is the cost of a firm's capital structure. The capital structure of a firm can be made up of one or more of the following components namely debt, preferred stock and common equity. The WACC is normally calculated using the market value of these components. The formula for WACC is,
WACC = wD * rD * (1-tax rate) + wP * rP + wE * rE
Where,
- wD, wP and wE represents the weight of debt, preferred stock and common equity in the capital structure based on the market value
- rD, rP and rE are the cost of debt, preferred stock and common equity respectively.
To calculate the weight that should be assigned to the preferred stock in the calculation of WACC, we need to determine the market value of preferred stock and the market value of the capital structure.
Market Value - Debt = 10000 * 1000 * 1.01 = $10.1 million
Market Value - Preferred stock = 1 * 114.50 = $114.5 million
Market Value - Common equity = 26 * 15 = $390 million
Total MV of capital structure = 10.1 + 114.5 + 390 = $514.6
wP = 114.5 / 514.6 = 0.2225 or 22.25%
