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.
Answer:
Step-by-step explanation:
The directrix y=-6 is parallel to the x axes, so parabola has equation of the form
where 
is the vertex of parabola and p is parabola's parameter.
By the definition, 
is the distance from the vertex to the directrix, so
Hence, the equation of parabola is
See attached diagram for the graph of parabola and its directrix.
In vertex form this equation is
Answer:
The answer is (-1/2)
Step-by-step explanation:
<h3><u>Given</u>;</h3>
<h3><u>To </u><u>Find</u>;</h3>
So,
24d = -12
Divide both side by 24 we get,
24d/24 = -12/24
d = -1/2
Thus, The value of d is (-1/2)
STEP 1
Multiply total number of customers by percent who made a purchase.
= 950 customers * 82%
= 950 * 0.82
= 779 customers made a purchase
STEP 2
Subtract the number of customers who bought one and two items from the total number of customers who made a purchase.
= 779 - 538 - 186
= 55 customers purchased 3 or more items
ANSWER: 55 customers purchased 3 or more items.
Hope this helps! :)
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