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
#SPJ4
Answer:
not just pay them they can award them with extra credit?
Explanation:
Answer:
Cash provided by operations is $250
Explanation:
<em>If a company has net income of 180, depreciation of 50, change in asset and liability accounts of $20, then cash provided by the operation is?</em>
<em />
Cash flows from operating activities
Net Income $180
<em>Adjustments to reconcile net loss </em>
<em>to net cash flow from operating activities</em>
Add: Depreciation $50
Add: Change in net current assets <u>$20</u> <u>$70 </u>
Cash provided by operations <u>$250</u>
Answer:
The correct answer is option b.
Explanation:
GDP is a measure of economic growth that shows the level of final goods and services produced in an economy in a year. It includes only final goods and services, intermediate goods are not included.
So here the value of flour used to make bread will not be included as it is an intermediate good. But the value of bread will be included. The value of the second bag of the floor will be included as it is a final good sold to the consumer.
Increase in GDP
= $3 + $2
= $5
The correct answer is choice b.
Banks are profit-making institutions. Their purpose is to make a profit for their owners or stockholders. They need to charge more interest on the money that they loan out than what they pay on savings accounts so that there is a profit for them.