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
goblinko [34]
3 years ago
11

A survey of 1010 college seniors working towards an undergraduate degree was conducted. each student was asked, "are you plannin

g or not planning to pursue a graduate degree?" of the 1010 surveyed, 658 stated that they were planning to pursue a graduate degree. construct and interpret a 98% confidence interval for the proportion of college seniors who are planning to pursue a graduate degree. (0.612, 0.690); we are 98% confident that the proportion of college seniors who are planning to pursue a graduate degree is between 0.612 and 0.690. (0.621, 0.680); we are 98% confident that the proportion of college seniors who are planning to pursue a graduate degree is between 0.621 and 0.680. (0.616, 0.686); we are 98% confident that the proportion of college seniors who are planning to pursue a graduate degree is between 0.616 and 0.686. (0.620, 0.682); we are 98% confident that the proportion of college seniors who are planning to pursue a graduate degree is between 0.620 and 0.682.
Mathematics
1 answer:
Yuliya22 [10]3 years ago
5 0
The confidence interval is (0.616, 0.686).

To find the confidence interval, we first find p, the proportion of students:
658/1010 = 0.6515

The confidence interval follows the formula
p\pm z(\sqrt{\frac{p(1-p)}{N}})

To find the z-score associated with this level of confidence:
Convert 98% to a decimal:  98% = 98/100 = 0.98
Subtract from 1:  1-0.98 = 0.02
Divide by 2:  0.02/2 = 0.01
Subtract from 1:  1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this is closer to the z-score 2.33.  

Using our information, we have:
0.6515\pm 2.33(\sqrt{\frac{0.6515(1-0.6515)}{1010}})
\\
\\0.6515\pm 0.0349

This gives us the interval (0.6515-0.0349, 0.6515+0.0349) or (0.616, 0.686).
You might be interested in
Please help me!!!!!!!!!
Serga [27]

Answer:

Step-by-step explanation:

I assume we are finding the slope of the line.  It is positive since it runs from the lower left to the upper right, so forget B and D.  Since slope is defined as rise over run, in order to get from one point on the line that goes through right where the grids meet to another point that goes through right where the grids meet we count up 1 unit and then to the right 6 units.  This is a slope of 1/6.

5 0
3 years ago
Piscou possède 2021 pièces d'or. Il les répartit en piles contenant des nombres de pièces consécutifs.
anzhelika [568]

Question in English:

Tom has 2,021 gold coins. He divides them into piles containing consecutive numbers of pieces. if it has more than two piles, how much is in the highest pile?  

Plzzzzz give me Brainliest!!!!!  

7 0
3 years ago
Jayesh determines that he needs to sell more than $200 worth of fruit athis produce stand in order to make a profit. Part A.Whic
jok3333 [9.3K]

Answer:

s > 200

Step-by-step explanation:

Note that

> means greater than

< means less than

for example : 2 < 3 means 2 is less than 3

3 >2 means 3 is greater than 2

If he needs to sell more than 200, sales has to be greater than 200 = s > 200

3 0
3 years ago
1/2 of a bag of candy is skittles, 1/4 is m and m's, and 3/4 of the rest of it are life savers. The rest are sour patch kids. Wh
m_a_m_a [10]

Answer:

6.25%

Step-by-step explanation:

Total = 1 ; as a decimal

1/2 = skittles

1/4 = M&Ms

Skittles +M&Ms = 1/2 + 1/4 = 3/4

Remainder = 1 - \frac{3}{4}

Remainder = \frac{1}{4}

Sour patch = \frac{1}{4} *\frac{1}{4} =\frac{1}{16}

As a percentage , multiply 1/16 by 100 and it becomes 6.25%

5 0
3 years ago
Which number lint represents the solution set for the inequity -1/2x&gt;4
g100num [7]

Answer:

B. x < -8

Step-by-step explanation:

Well first we need to get x by itself.

To do that we do 4 / -1/2 = -8

And since a negative was divided the > changes to a <.

So x<-8.

If x is less than -8 the line starts at -8 and goes to the left.

<em>Thus,</em>

<em>the answer is choice b.</em>

<em />

<em>Hope this helps :)</em>

5 0
3 years ago
Other questions:
  • Pls help pls help pls help
    6·2 answers
  • I have a past due balance of 87.50 and my new charges are 75.00 and charged a late fee of 15%
    6·1 answer
  • I will mark you brainliest!!! Select the answer that includes the correct explanation.
    6·1 answer
  • PLS HELP 15 POINTS!<br><br> Find part “b”.
    5·1 answer
  • What is ∣-5.6∣? huh??????
    13·2 answers
  • If the simple interest on $4000 for 9 years is $1800, then what is the interest rate.
    14·2 answers
  • Which of the following controls what enters or exits a cell?
    6·1 answer
  • 4. You have 36 pairs of running shoes. Let x be the
    13·1 answer
  • 4/5 divided by 7/15 pls help
    12·2 answers
  • The 6% state<br> income tax<br> on a $72,000<br> salary
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!