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
xz_007 [3.2K]
3 years ago
9

A survey of 1,500 Canadians reveals that 945 believe that there is too much violence on television. In a survey of 1,500 America

ns, 810 believe that there is too much television violence.
a. What would be the most appropriate test here to test the claim that Americans are less sensitive to violence on TV as Canadians?
b. My parameter of interest here would be: __________
c. The direction of test would be {Let Canadians be group 1 and Americans be group 2): __________
Mathematics
1 answer:
padilas [110]3 years ago
4 0
A. An appropriate test would probably be to test the reaction of Canadians and Americans when shown the same thing with the same amount of violence.

Not really sure about the others though… This isn’t really a math question ;)
You might be interested in
A random sample of 10 parking meters in a resort community showed the following incomes for a day. Assume the incomes are normal
GenaCL600 [577]

Answer:

A 95% confidence interval for the true mean is [$3.39, $6.01].

Step-by-step explanation:

We are given that a random sample of 10 parking meters in a resort community showed the following incomes for a day;

Incomes (X): $3.60, $4.50, $2.80, $6.30, $2.60, $5.20, $6.75, $4.25, $8.00, $3.00.

Firstly, the pivotal quantity for finding the confidence interval for the population mean is given by;

                         P.Q.  =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean income = \frac{\sum X}{n} = $4.70

            s = sample standard deviation = \sqrt{\frac{\sum (X-\bar X)^{2} }{n-1} }  = $1.83

            n = sample of parking meters = 10

            \mu = population mean

<em>Here for constructing a 95% confidence interval we have used a One-sample t-test statistics because we don't know about population standard deviation.</em>

<u>So, 95% confidence interval for the population mean, </u>\mu<u> is ;</u>

P(-2.262 < t_9 < 2.262) = 0.95  {As the critical value of t at 9 degrees of

                                            freedom are -2.262 & 2.262 with P = 2.5%}  

P(-2.262 < \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } } < 2.262) = 0.95

P( -2.262 \times {\frac{s}{\sqrt{n} } } < {\bar X-\mu < 2.262 \times {\frac{s}{\sqrt{n} } } ) = 0.95

P( \bar X-2.262 \times {\frac{s}{\sqrt{n} } } < \mu < \bar X+2.262 \times {\frac{s}{\sqrt{n} } } ) = 0.95

<u>95% confidence interval for</u> \mu = [ \bar X-2.262 \times {\frac{s}{\sqrt{n} } } , \bar X+2.262 \times {\frac{s}{\sqrt{n} } } ]

                                         = [ 4.70-2.262 \times {\frac{1.83}{\sqrt{10} } } , 4.70+ 2.262 \times {\frac{1.83}{\sqrt{10} } } ]

                                         = [$3.39, $6.01]

Therefore, a 95% confidence interval for the true mean is [$3.39, $6.01].

The interpretation of the above result is that we are 95% confident that the true mean will lie between incomes of $3.39 and $6.01.

Also, the margin of error  =  2.262 \times {\frac{s}{\sqrt{n} } }

                                          =  2.262 \times {\frac{1.83}{\sqrt{10} } }  = <u>1.31</u>

4 0
3 years ago
Can someone please please help me out :)
Valentin [98]
Graph one: A01- 100 miles
A03 (a)- 50
8 0
3 years ago
Alejandro bought $3.50 worth of pencils and erasers at the school store. Pencils cost $0.50 apiece, and erasers cost $0.75 apiec
Bezzdna [24]

Answer:

I would say that is is B

Step-by-step explanation:

Just put the answer

Please make be brainliest or like rate my answer please and thanks <3

5 0
3 years ago
Which two expressions are equal?
guapka [62]
Answer: C and d my guy becuz u have to calculate all and see answers moomoo
4 0
2 years ago
Sixth grade
garri49 [273]

Answer:

11-C

Step-by-step explanation:

Cause 11-C

equels the same amount as the one on the top of 11-C

6 0
2 years ago
Other questions:
  • PLEASE HELP FAST!!! WILL GIVE BRAINLIEST AND LOTS OF POINTS
    9·2 answers
  • What would be the angle of elevation of a tree from the ground, if the height of the
    8·1 answer
  • Shawna is practicing typing. She types 456 words in 10 minutes.If she types the same number of words each minute how many words
    12·2 answers
  • Integers that satisfy the inequality 5x - 3 &lt; 12?
    8·1 answer
  • Find an equation in the form y=ax2+bx+c for the parabola passing through the points.(−3,61), (4,96), (2,16)
    14·1 answer
  • Find the perimeter of this complex figure
    10·1 answer
  • There are 50 books that are either red or blue. If 30 books are blue, what
    15·1 answer
  • One less then four times a number is equal to 9 more then six times the number
    14·1 answer
  • The circumference of a circle is 9 pi m. What is the area, in square meters? Express
    6·2 answers
  • If 4x/3 = 8, find out the value of X.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!