1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bogdan [553]
3 years ago
13

3. The wildlife department has been feeding a special food to rainbow trout finger lings in a pond. A sample of the weight of 40

trout revealed that the mean weight is 402.7 grams and the standard deviation 8.8 grams. ( 4 POINTS) 1. What is the point estimated mean weight of the population? What is that estimate called? 2. What is the 99 percent confidence interval? 3. What are the 99 percent confidence limits? 4. Interpret your findings?
Computers and Technology
1 answer:
andrey2020 [161]3 years ago
8 0

Answer:

1)  402.7 grams. This estimate is called the sample mean.

2)  (399.11, 406.29)

3) The 99 percent confidence limits is between 399.11 grams and 406.29 grams.

I am 99% sure that the value lies between 399.11 grams and 406.29 grams.

Explanation:

sample size (n) = 40, the mean weight (x)= 402.7 grams and the standard deviation (σ)=8.8 grams

1) The point estimated mean weight of the population is 402.7 grams. This estimate is called the sample mean.

2) c = 99% = 0.99

α = 1 - 0.99 = 0.01

\frac{\alpha }{2} =\frac{0.01}{2} =0.005.

The z score of 0.005 corresponds with the z score of 0.495 (0.5 - 0.005).

z_\frac{\alpha }{2} =2.58.

The margin of error (e) = z_\frac{\alpha }{2}*\frac{\sigma}{\sqrt{n} }  =2.58*\frac{8.8}{\sqrt{40} } =3.59

The confidence interval = x ± e = 402.7 ± 3.59 = (399.11, 406.29)

3) The 99 percent confidence limits is between 399.11 grams and 406.29 grams.

I am 99% sure that the value lies between 399.11 grams and 406.29 grams.

You might be interested in
Which type of operating system requires a keyboard in order to issue commands?
kicyunya [14]

Answer:

I said CLI.

Explanation:

''A command-line interface (CLI) processes commands to a computer program in the form of lines of text.''- Wikipedia

4 0
3 years ago
Which was cited as a reason why Google became so popular?
kupik [55]

Answer:

Google became successful because its founders were well-connected. Google was the world's first and best search engine. Google changed the world by solving an old problem in a new way. Google's other products are now more important to its success than search.

Explanation:

3 0
2 years ago
What is an effective technique for searching the web? Choose one.
kakasveta [241]
Option B is what i would say 

if you are searching something and want a specific answer you are going to need to be specific on how you search it
4 0
3 years ago
Read 2 more answers
Which statement describes the primary purpose of JavaScript?
cupoosta [38]

a.The primary purpose of JavaScript is to enable features such as validation of forms before they are submitted to the server.

<u>Explanation:</u>

On web pages before submitting the day, end user has to do client validations such as whether data enter is correct data type,  so end user for  client side validation been eiher by VBSCRIPT (visual basic script language) or (JavaScript java script).  Internet explorer or Microsoft edge uses VBSCRIPT for web page validation.

For visual basic script languages end user should have enough knowledge   on visual basic programming languages. Same away for java script end user have enough knowledge on c language.

Both Scripts are used for client side validation on success of validation end user will submit web page form for next action. JavaScript is used in most of the browser including Microsoft explorer or Microsoft edge.

5 0
3 years ago
Student aid is based on either financial need or _____ need.
anzhelika [568]

Answer:

academic

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • The length of a hailstone sequence is the number of terms it contains. For example, the hailstone sequence in example 1 (5, 16,
    9·1 answer
  • What is the magnitude of the largest positive value you can place in a bool? a char? an int? a float?
    14·1 answer
  • A file extension of .xlsx means that the file contains what? *
    12·2 answers
  • The four key stages with regards to data visualization workflow. Select one key stage and explain it briefly about that stage.St
    10·1 answer
  • Kiara is using her software's graphic formats to create a line graph. As she
    9·2 answers
  • Which of the following does not make a good analysis class? (Points : 6) its name reflects its intent
    13·1 answer
  • Which command would you use to swap the words hither and yon on any line with any number of words between them? (You need not wo
    5·1 answer
  • What is the ghosted text or picture behind the content on the page?​
    6·1 answer
  • Let x = ["Red", 2.55,"Green", 3,"Black","false"], then solve the following:
    7·1 answer
  • Identify and explain groups that may be impacted by nanotechnology.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!