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Shkiper50 [21]
1 year ago
5

The researcher wants to investigate whether carpet makes a difference in the mean bacterial concentration in air. the null and a

lternative hypotheses would be_________.
Business
1 answer:
expeople1 [14]1 year ago
8 0

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.

Learn more about bacterial here brainly.com/question/26130970

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answer.

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3 0
2 years ago
Brian makes ​$27,000 per year. how much can brian expect to contribute to fica taxes? question 7 options: $2,065 $1,674 $391 $2,
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<span>To find the amount of FICA taxes one has to contribute, there are two values needed. First, the Social Security tax rate is 0.062 (6.2%) on the first $127,200 in wages, and then the Medicare tax is 0.0145 (1.45%) on the first $200,000 in income. Adding these two figures gives the total FICA taxes. 6.2 percent of $27,000 is $1,674, and 1.45 percent of $27,000 is $391.50. Adding these two values together (1674 + 391) gives a total of $2,065, or choice (A).</span>
5 0
3 years ago
Choose the correct alternative regarding tax revenue:
insens350 [35]

The correct alternative regarding tax revenue:

<u>B-Personal income tax is currently the largest source of government revenue in South Africa.</u>

<u>Direct </u><u>Taxes</u>

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  • the burden of tax cannot be shifted in case of direct tax.
  • it is paid directly by individual concerned.
  • it is paid after the income reaches in the hands of the taxpayer
  • Tax collection is difficult.
  • instance income tax, wealth tax etc.

<u>Indirect </u><u>Taxes</u>

  • it is levied on product or services.
  • the burden of tax shifted for indirect taxes
  • It is paid by way of one man or woman however he recovers the same from another person i.e. person who actually bear the tax ultimate consumer.
  • it is paid before goods/service reaches the taxpayer.
  • Tax collection is exceptionally easier
  • Example GST, excise duty custom duty sale tax carrier tax

Learn more about Tax brainly.com/question/16423331

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5 0
1 year ago
In the vast majority of commercials that advertise cleaners, a woman is shown using the product, even though the high percentage
erma4kov [3.2K]

Answer:

Sex roles are portrayed stereotypical

Explanation:

The people perceive that the household issues like cooking, washing clothes, children mentoring, etc are the jobs of the women becuase this is how they had contributed to the family in the past. So media stereotypically perceives the same way the society does and also portrays it the same way.

7 0
3 years ago
What is the importance of having a good management​
skad [1K]

Answer:

Employees need to know what is expected of them; having clear expectations helps employees do their job well. A good manager will convey his expectations and make sure employees understand them. He also will make himself available to employees, so they can have the opportunity to clarify any confusion they may have.

4 0
3 years ago
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