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
erica [24]
4 years ago
5

A noted psychic was tested for extrasensory perception. The psychic was presented with 2 0 0 cards face down and asked to determ

ine if each card were one of five symbols: a star, a cross, a circle, a square, or three wavy lines. The psychic was correct in 5 0 cases. Let p represent the probability that the psychic correctly identifies the symbol on the card in a random trial. Assume the 2 0 0 trials can be treated as a simple random sample from the population of all guesses the psychic would make in his lifetime. What do we know about the value of the P -value for the hypothesis test: Ha: p>0.20 ? ( Note: Use the large-sample z statistic. ) a. P-value < 0.01 0.02 < b. P-value < 0.03 0.03 < c. P-value < 0.04 0.05 < d. P-value < 0.10
Mathematics
1 answer:
Natasha2012 [34]4 years ago
3 0

Answer:

C. P- value < 0.04 0.05

Step-by-step explanation:

hello,

we were given the sample size, n = 200

also the probability that the psychic correctly identifies the symbol on the 200 card is

p=\frac{50}{200}= 0.25

using the large sample Z- statistic, we have

Z=\frac{p- 0.20}{\sqrt{0.2(1-0.2)/200} }

   = \frac{0.25-0.20}{\sqrt{0.16/200}}

    = 1.7678

thus the P - value for the hypothesis test is P(Z > 1.7678) = 0.039.

from the above, we conclude that the P- value < 0.04, 0.05

You might be interested in
A triangular side of the Transamerica Pyramid Building in San Francisco, California, is 149 feet at its base. If the distance fr
lutik1710 [3]

Answer:D. 429.5 ft​

Step-by-step explanation:

Divide 859 in half and you get 429 with remainder of 5.

8 0
3 years ago
Read 2 more answers
X³ +8x² -11x -12<br><br> Synthetically divide to find all zeros?<br><br> PLz help
Katarina [22]
You have to find what x equals i think
4 0
3 years ago
Given: F(x) = 3x^2+1, G(x) = 2x - 3, H(X) = x<br> Find F(x) + G(x) =
weqwewe [10]

F(x)+G(x)=3x^2+2x-2.

Solution:

Given data: F(x)=3x^2+1 and G(x)=2x-3

To find F(x) + G(x):

Adding two functions which gives another function.

Substitute F(x) and G(x), we get

F(x)+G(x)=(3x^2+1)+(2x-3)

                    =3x^2+1+2x-3

                    =3x^2+2x-3+1

                    =3x^2+2x-2

F(x)+G(x)=3x^2+2x-2

Hence, F(x)+G(x)=3x^2+2x-2.

4 0
3 years ago
100×0.23 = <br> 101×0.23 = <br> 102×0.23 = <br> 103×0.23 =
zaharov [31]

Answer:

100×0.23=23

101×0.23=23.23

102×0.23=23.46

103×0.23=23.69

7 0
2 years ago
Read 2 more answers
One fabric cost $15.00 for 2 yards. Another cost $37.50 for 5 yards. Do both yards cost the same? Explain.
omeli [17]

Answer:

Yes.

Step-by-step explanation:

Both yards do cost the same.

$15.00 divided by 2 is equal to 7.5.

$37.50 divided by 5 is equal to 7.5.

Therefore, both yards cost the same.

3 0
3 years ago
Other questions:
  • The table below lists the number of floors in the 10 tallest buildings in the world. Note: The buildings are organized by height
    8·2 answers
  • A pair of dice are tossed what us the probability that the sum on the two dice is 8, given that the sum is more than 6 condition
    8·1 answer
  • John ran the​ 100-m dash with a time of 9.87sec. If this pace could be maintained for an entire 26-mi marathon, what would his t
    14·1 answer
  • Lines and are parallel in the image below. The image will be used to prove that the sum of the measures of the interior angles o
    9·2 answers
  • The probability of college graduate getting employed within a year is 90 % 90%. The probability of a college graduate getting em
    11·1 answer
  • Is it possible to use substitution to solve a system of linear equations if one equation represents a horizontal line and the ot
    10·1 answer
  • 3/2 x + 5 = 5 -2 (x+7)
    11·1 answer
  • Find the value of X and Y
    12·1 answer
  • Are 46 and 105 relatively prime​
    5·2 answers
  • There are 32 students in a class and 20 of them own at least one pet
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!