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
marusya05 [52]
3 years ago
5

A researcher believes that there is a difference in how cautious male stray cats and female stray cats are when approaching peop

le. He knows that the stray cat population is 50% male and 50% female. In order to test this hypothesis, he visits 15 different areas where stray cats live and records the gender of the first cat to approach him. He finds that 11 of the 15 cats that approach him are male. Using a sign test and an alpha of .05: A) What is the null hypothesis
Mathematics
1 answer:
Anika [276]3 years ago
5 0

Answer:

The null hypothesis is that there is no difference in the mean number of male and female cats

H₀; μ₂ - μ₁ = 0

Step-by-step explanation:

The given parameters are;

The given percentage of male stray cat population = 50%

The given percentage of female stray cat population = 50%

The number of areas the researcher visits, n = 15

The number of stray male cats he finds = 11

The kind of test to be performed = Sign test

The significance level, α = 0.05

A) Therefore the null hypothesis is H₀; μ₂ - μ₁ = 0

The alternative hypothesis is Hₐ; μ₂ - μ₁ ≠ 0.

You might be interested in
Callie has 83 postcard
yuradex [85]
Any second part or anything else to look at?
3 0
3 years ago
Find the equation of the line using the given information.
Alecsey [184]

When the slope is zero, the line is horizontal. Its equation will be of the form

... y = constant

The y-value of your point is specified as -9, so the equation of the line through that point is

... y = -9

8 0
3 years ago
Which expression represents the BEST way to solve the following problem? Jason is 5 years older than Bill, and Bill is twice as
NeTakaya
Jason = J   Bill = B    Sharon = S
J = 5+B
B= 2×S
J= 5+ (2×S)
3 0
3 years ago
A store makes a profit of $15 on a wallet, after a mark up of 60%, what is the selling price of the wallet ?
Radda [10]
1.5 multiplied by 6 equals 9
3 0
3 years ago
Rewrite each expression as a polynomial in standard form.a)(x+i)(x-i)b)(x+5i)(x-5i)
Nitella [24]

Answer:

a) x² +1

b) x² +25

Step-by-step explanation:

a) (x+i)(x− i)

   = x² - ( i ) x + ( i ) x - ( i)²

   = x² -  i²                       ∵ i² = -1

   = x² -  (-1)

   = x² +1

b) (x+5 i)(x− 5i)

 = x² - ( 5 i ) x + ( 5 i ) x - ( 5 i)²

   = x² - 25 i²                       ∵ i² = -1

   = x² -  25(-1)

   = x² +25

we can also solve

using identity

   (a + b)(a - b) = a² - b²

   = (x+5 i)(x− 5i)    

   = x² - (5 i)²

   = x² - 25 i²

   = x² +25

8 0
3 years ago
Other questions:
  • Kalat bought a dozen bags of bird food for $27. Use compatible numbers to find the approximate cost of six dozen bags of bird fo
    12·1 answer
  • Circle the greater andend. draw circle to count on one two or three write the sum
    9·1 answer
  • 18. Which of the following has the greatest value? * O 3.14 O 14/2 21 O 79​
    6·1 answer
  • Whats a formula for four is no less than the quotient of a number x nd 2.1
    10·1 answer
  • Solve the equation by factoring. 2x^2 + 15x + 25 = 0
    5·2 answers
  • Simplify (-343,000) 1/3
    9·1 answer
  • Lucas has 18 coins. there are three times as many pennies as dimes and twice as many nickels as dimes. the number of each coin i
    10·1 answer
  • Question 2 (1 point) (11.01 MC) Nina has a piece of fabric measuring 5 yards. How many 1-inch strips can be cut from the fabric?
    15·1 answer
  • Can you chose which option it is
    12·2 answers
  • A triangle has sides with lengths of 2 centimeters, 4 centimeters, and 5 centimeters. Is it a right triangle?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!