The city council is considering a law that would ban smoking in all public facilities. A sample has been selected from the community and tested for support of the ordinance. Is there a statistically significant relationship between age and support for the anti-smoking law? Use the five step model as a guide and write a sentence or two interpreting your results.
Age
Less than 40 More than 40
SUPPORT For 145 78 223
Against 103 169 272
Total 248 247 495
Answer:
Reject Null Hypothesis given that P-value < ∝
Step-by-step explanation:
Applying the Five ( 5 ) step model and assuming ∝ = 0.05
First step : determine the Null hypothesis
H0 : Age and support for Anti-smoking = independent
Second step : Determine the alternate hypothesis
Ha : Age and support for Anti-smoking ≠ independent
Thirdly : Identify significance level ( ∝ ) = 0.05
4th step : Calculate the Test statistic and P-value
Chi-squared test = 36.1429 using excel function
P-value = 1 - CHISQ.DIST(36.1429, 1, TRUE) < 0.0001
finally : we can conclude that Age and support for Anti -smoking are not Independent hence we Reject The Null hypothesis. Given that
P-value < ∝
What is the value of x3 . Y1 when x= 5 and y = 10
Answer:
x³ = 125
y¹ = 10
Step-by-step explanation:
x³
5³ = 125
y¹
10¹ = 10
Answer:
150
Step-by-step explanation:
(5*3) . (10*1) = 150
Hope this helps, good luck!
can someone help me please
Answer:
perimeter: 36
area: i dont know sorry
Step-by-step explanation:
What is the length of the dotted line in the diagram below? Round to the nearest
tenth
Answer:
[tex]Hypotenuse^2 = 5^2 + 2^2 = 25 + 4 = 29\\\\Hypotenuse= \sqrt{29}\\\\diagonal^2 = (\sqrt{29})^2 + 2^2\\\\diagonal^2 = 29 + 4 = 33\\\\diagonal = \sqrt{33} = 5.7445 = 5.8[/tex]
Anyone mind helping I’ll give you the crown
b) Because it REFLECTING which means that is going across
Answer:
D is correct
Step-by-step explanation:
because the ponit started in quadrant 1 and the only thing that could change is the y-axis and the y-axis aloney went down and quadrant 4 is the only quadrant above 1 so that the answer
Given oo below, if AB and Bē are congruent, what is the measure of chord
BC?
Answer:
14.5 units
Step-by-step explanation:
AB= BC
BC = 14.5 units
Pleaseeeeee hellopppppppp!!
Answer:
A. 29
B. 11
C. 10
D. 12
Step-by-step explanation:
A. 180 - 122 = 58
58 divided by 2 = 29
-
B. 180 - 37 = 143
x = 11
5 x 11 = 55
8 x 11 = 88
55 + 88 = 143 + 37 - 180
-
C. the small box in a triangle means right angle = 90
90 - 68 = 22
(2x - 2) we subtract before finding out what x is
22 - 2 = 20
2x = 20 divide by 2 = 10
x is equal to 10
-
D. to find the total, you must figure out what each equation is to add them up to make 180.
(8x + 3) + (2x + 9) + 4x = 180
add up the numbers with x and the numbers without them
14x + 12 = 180
subtract 180 - 12 = 168
168 divided by 14 = 12
x = 12
Hope this helped !!
The product of two numbers is 41. One of the numbers
is the complex number 5+4i. What is the other
number?
A. 5-4i
B. 5+4i
C. -5-4i
D. -5+4i
E. 41/5-4i
===================================================
Work Shown:
x = the other number
(5+4i)*x = 41
x = 41/(5+4i)
x = 41*(5-4i)/( (5+4i)*(5-4i) ) ..... see note below
x = 41*(5-4i)/( 41 )
x = (41/41)*(5-4i)
x = 5 - 4i
As a way to check, (5+4i)*(5-4i) = 5^2+4^2 = 25+16 = 41
The rule used is (a-bi)(a+bi) = a^2 + b^2
-----------
Note: I multiplied top and bottom by (5-4i) to get rid of the imaginary term in the denominator.
50 POINTS !!
PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Answer:
sqrt 4^2+3^2=5
What is the distance between the two points shown on the coordinate plane below?
Answer: 16
Step-by-step explanation:
Answer:
[tex]distance = \sqrt{ {(8 - ( - 8))}^{2} + {( - 6 - ( - 6))}^{2} } \\ = \sqrt{256} \\ = 16 \: units[/tex]
What is the length of a
rectangular container if its volume is 336 cubic inches? Its height is 6 inches and its
width is 8 inches. (Hint: V = lwh)
Answer:
7 I think not sure tho
Step-by-step explanation:
What is the length of the hypotenuse?
O 6 cm
O 62 cm
O 12 cm
O 122 cm
50 POINTS !!
PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Step-by-step explanation:
54^2 + a^2 = 90^2
2916 + a^2 = 8100
a^2 = 8100 - 2916
a^2 = 5184
take the square root of 5184
a = 72
you could have also guessed that its a 3 4 5 right triangle
all the sides are multiples of 3 4 or 5
Find the median of the following set of data.
23, 50, 49, 48, 49, 32, 37, 40, 41, 42, 41, 41, 43
Answer:
41
Step-by-step explanation:
7 4/7 2 =49. Why does (=) make it true?
Answer:
I think you're missing some basic operations... but i'd love to help you so if you could let me know what the operations are I'd love to help :)
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
508/72=49
127/18=49
127=884
Jessica and Emily went shopping at a local boutique. Jessica purchased 4 bracelets and a new.pair of earrings for $9.50. Emily purchased 3 new bracelets and 2 new pair of earrings for $10.25.
What value of c makes x2+6x+c a perfect square trimonial
Answer:
9
Step-by-step explanation:
To solve this just take b (in this case 6x) divide it by 2 and then square it
which means that c=9
this will factor to (x+3)²
11. Eddie is baking cupcakes. He has 7.5 cups of sugar. Each batch of cupcakes requires 0.75 cup of sugar. How many full
batches of cupcakes can Eddie make
Answer:
10
Step-by-step explanation:
7.5/0.75=10
Answer:
10
Step-by-step explanation:
How many faces does this shape have?
PLS HELP !! Find the length of the third side. If necessary, round to the nearest tenth.
Answer: 16
Step-by-step explanation:
Use the pythagorean theorem ([tex]a^2+b^2=c^2[/tex]). A and b are the 2 legs, and c is ALWAYS the hypotenuse.
Plug in the values and solve:
[tex]12^2+b^2=20^2\\144+b^2=400\\b^2=256\\b=16[/tex]
Pls help me I don’t want my school to call my mom
Answer:
A) Parallelogram and Rectangle
Step-by-step explanation:
A parallelogram has two pairs of parallel sides. Because a rectangle has two pairs of parallel sides AND 4 right angles, the first option is correct.
Answer:
Parallelogram and rectengle
Step-by-step explanation:
Find the median of the data in the dot plot below.
chocolate chips
look in the file for the question
Answer:
6
Step-by-step explanation:
The median is the central number of a data set. To the left of 6, there are 5 data points. To the right of 6, there are also 5 data points. This means that 6 is the median.
Answer:
6
khan approved, it right.
Tyler’s family spent 90 minutes on the trolley sightseeing tour. If they spent 36 minutes riding the trolley and about 9 minutes stopped at each sight, how many sights did they stop at?
3x + 1/4 y^2
What is the value of the expression above when x = 3 and y = 4? You must show all work and calculations to receive full credit. (4 points)
Answer:
13
Step-by-step explanation:
Given :
3x + 1/4 y^2
For x = 3 ; y = 4
3(3) + 1/4(4^2)
9 + 1/4(16)
9 + 4
= 13
Find the probability of rolling an even number on a standard number cube.
A.certain
B.impossible
C.Ounlikely
D.as likely as not
E.likely
Answer:
D as likely as not.
Step-by-step explanation:
......
Answer:
D. as likely as notExplanation:
P (even number) = 3/6 = 1/2
⇒ as likely as not
Find the value of x
Answer:
x=-0.5 or x=-1/2
Step-by-step explanation:
Which of the expressions below is a binomial factor of the polynomial shown?
w² +8w+16
A.(w+8)
B.(w+4)
C.(W+16)
D.(w+2)
Answer:
D. (w+4)Here is ur answer mate
Answer:
i guess it is B after mid term break formula
please help!
i will reward brainliest
Answer:
37.9 degrees
Step-by-step explanation:
Using the law of sines, [tex]\frac{\sin(m\angle C)}{21}=\frac{\sin(47^\text{o})}{25}[/tex]. It follows that [tex]\sin (m\angle C) = \frac{21\sin(47^\text{o})}{25} \approx 0.6143371[/tex]. Therefore, [tex]m\angle C = \sin^{-1}(0.6143371)=37.9^\text{o}[/tex].
What is the source of the energy for the circled movement of water?
I’ll mark brainliest
2 apples, 4 bananas, and 6 oranges. A fruit is randomly drawn from the bowl before another fruit is drawn, without replacement.
What is the probability that a banana and then an orange are selected?
Enter your answer as a fraction in simplest form in the box
Answer:
1/9
Step-by-step explanation:
1. aa
2. ab
3. ao
4. ba
5. bb
6. bo
7. oa
8. ob
9. oo
Answer:
anwser is 2/11
i took the quiz and picked 1/9 and it sayed that the anwser was 2/11