answer.
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
alexdok [17]
1 year ago
9

Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater

than 2 feet. In population E, 20 percent of the turtles have a shell length greater than 2 feet. From a random sample of 40 turtles selected from D, 15 had a shell length greater than 2 feet. From a random sample of 60 turtles selected from E, 11 had a shell length greater than 2 feet. Let pˆD represent the sample proportion for D, and let pˆE represent the sample proportion for E.
What is the probability that pˆD−pˆE is greater than 0.1917?
Mathematics
1 answer:
just olya [345]1 year ago
8 0

Answer:

Step-by-step explanation:

The probability is obtained by calculating the z score,  

<u>(pˆD−pˆE) - (PD - PE)</u>

      0.0914  

<u>10.1917-0.1 </u>

0.0914           = 1.0029

P(z > 1.0029) = 1 - P(z ≤ 1.0029)

The probability is obtained from the z distribution table,

P(Z > 1.0029) = 1-0.8420 = 0.1580

You might be interested in
Line segment pq shown on the graph below, is rotated 90 counterclockwise about point q to form pq
USPshnik [31]

Answer:

this isn’t a 100% guaranteed correct answer but maybe the second option saying “PQ and P’G’ are parallel”

(i’m doing the test rn)

4 0
2 years ago
Read 2 more answers
Consider the probability distribution of x, where x is the number of job applications completed by a college senior through the
Oksi-84 [34.3K]
The expected number out of 1000 selected college seniors that completed 1 job application through the career centers is given by 0.011 x 1000 = 11 which is close to 14.

The expected number out of 1000 selected college seniors that completed 2 job application through the career centers is given by 0.115 x 1000 = 115 which is far away from 15.

The expected number out of 1000 selected college seniors that completed 3 job application through the career centers is given by 0.123 x 1000 = 123 which is close to 130.

Therefore, the result that would be suprising is "15 seniors completed 2 job applications through the career center."
3 0
2 years ago
Stepping from the embrace, she smoothly extracts the broom from my grip. Which type of phrase is the underlined portion of the s
guajiro [1.7K]

Answer:

A). Participle phrase.

Step-by-step explanation:

'Participle phrases' are defined as the phrases that consist of a participle(present or past) followed by modifiers and their object plus any/or complements. These phrases primarily function as adjectives by providing information about a noun or pronoun in the sentence.

In the given sentence, the underlined portion('stepping from the embrace') is a participle phrase as it begins with a participle('present as it ends with 'ing') followed by the modifier prepositional phrase 'from the embrace'(as an adverb). It is <u>functioning as an adjective as it modifies the pronoun 'she' in the sentence</u>. Thus, <u>option A</u> is the correct answer.

5 0
2 years ago
Arthur is testing the effectiveness of a new acne medication. There are 100 people with acne in the study. Forty patients receiv
jenyasd209 [6]
Here is my answer below.

8 0
2 years ago
Read 2 more answers
Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
Oksanka [162]
We need a matching complex to 2+3i. The conjugate is 2-3i and the two factors are (x-2-3i)(x-2+3i)=(x²-4x+4+9)=x²-4x+13.
The polynomial is (x-4)(x+8)(x²-4x+13)=(x²+4x-32)(x²-4x+13)=
x⁴-4x³+13x²
+4x³-16x²+ 52x
-32x²+128x-416
x⁴-35x²+180x-416 is the 4th degree polynomial.
4 0
2 years ago
Other questions:
  • there are 50 competitors in the mens ski jumping. 30 move on to the qualifying round. how many different ways can the qualifying
    12·1 answer
  • An engineer is designing an arch-shaped gate for the entrance to an amusement park. The gate must be 80 feet wide and 25 feet ta
    6·1 answer
  • Yoko evaluates 7 divide 1/6 by using a related multiplication expression. Which multiplication expression should she use?
    15·2 answers
  • △HKS∼△DLY<br><br><br><br> What is DY<br><br> ?<br><br> Enter your answer, as a decimal, in the box.
    12·2 answers
  • Two standard dice are rolled and their face values multiplied. What is the probability that the product is prime or ends in 0?
    13·1 answer
  • How does the graph of g (x) = StartFraction 1 Over x + 4 EndFraction minus 6 compare to the graph of the parent function f (x) =
    9·2 answers
  • Triangle N T M is shown. Angle N T M is a right angle. An altitude is drawn from point T to point U on side N M to form a right
    8·2 answers
  • A large manufacturing plant has analyzed the amount of time required to produce an electrical part and determined that the times
    14·1 answer
  • What is the relationship between two lines whose slopes are −8 and 1 8 ?
    15·2 answers
  • () and () are inverses of one another and drawn on the same graph with the same scale on both the horizontal and vertical axis.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!