The student will calculate the 90% confidence interval for the mean cost of a home in the area in which this school is located.
The student will interpret confidence intervals.
The student will determine the effects that changing conditions has on the confidence interval.
Collect the data
Check the Real Estate section in your local newspaper. (Note: many papers only list them
one day per week. Also, we will assume that homes come up for sale randomly.) Record thesales prices for 35 randomly selected homes recently listed in the county.
Complete the table:
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Describe the data
Compute the following:
=
=
=
Define the Random Variable
,
in words.
=
State the estimated distribution to use. Use both words and symbols.
Find the confidence interval
Calculate the confidence interval and the error bound.
Confidence Interval:
Error Bound:
How much area is in both tails (combined)?
=
How much area is in each tail?
=
Fill in the blanks on the graph with the area in each section. Then, fill in the number
line with the upper and lower limits of the confidence interval and the sample mean.
Some students think that a 90% confidence interval contains 90% of the data. Use the list of data on the
first page and count how many of the data values lie within the confidence interval. What percent is this?Is this percent close to 90%? Explain why this percent should or should not be close to 90%.
Describe the confidence interval
In two to three complete sentences, explain what a Confidence Interval means (in general),
as if you were talking to someone who has not taken statistics.
In one to two complete sentences, explain what this Confidence Interval means for this
particular study.
Use the data to construct confidence intervals
Using the above information, construct a confidence interval for each confidence level given.
Confidence level
EBM / Error Bound
Confidence Interval
50%
80%
95%
99%
What happens to the EBM as the confidence level increases? Does the width of the confidence interval increase or decrease? Explain why this happens.
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
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Source:
OpenStax, Collaborative statistics using spreadsheets. OpenStax CNX. Jan 05, 2016 Download for free at http://legacy.cnx.org/content/col11521/1.23
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