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Veronika [31]
3 years ago
14

a market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the

individuals saw a new, expensive television commercial about the product g which is the most appropriate test
Mathematics
1 answer:
enot [183]3 years ago
4 0

Answer and explanation:

Answer:

Two sample t test

Explanation:

The test that could be used here is the two sample t test. The two sample t test compares two groups to ascertain if there is an average significant different between the two groups being compared, also making sure the result of difference is not random. For instance to test the above example, the two sample t test compares the group before they watch the commercial with the group after the commercial to know if there is a significant difference between the two groups.

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Find the square of <br><img src="https://tex.z-dn.net/?f=7%20-%202%20%5Csqrt%7B%2010%7D%20" id="TexFormula1" title="7 - 2 \sqrt{
wlad13 [49]

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

3 0
3 years ago
Read 2 more answers
Israel added $120 to his savings. This added amount represents 1/6 of his total savings. If s represents the total savings, whic
oee [108]

Calculista Ambitious

the correct question in the attached figure


Let

s----------> total savings


case a) Israel added $80 to his savings


we know that

80=(1/8)*s-------> multiply by 8 both sides------> s=$640


the answer case a) is

the equation is 

80=(1/8)*s


case b) Israel added $120 to his savings


we know that

120=(1/8)*s-------> multiply by 8 both sides------> s=$960


the answer case b) is

the equation is 

120=(1/8)*s




Read more on Brainly.com - brainly.com/question/10503464#readmore

7 0
4 years ago
A construction zone on Interstate 15 has a speed limit of 40 mph. The speeds of vehicles passing through this construction zone
monitta

Answer:

a. The percentage of vehicles who pass through this construction zone who are exceeding the posted speed limit =90.82%

b. Percentage of vehicles travel through this construction zone with speeds between 50 mph and 55 mph= 2.28%

Step-by-step explanation:

We have to find

a) P(X>40)= 1- P(x=40)

Using the z statistic

Here

x= 40 mph

u= 44mph

σ= 3 mph

z=(40-44)/3=-1.33

From the  z-table   -1.67 = 0.9082

a) P(X>40)=

Probability exceeding the speed limit = 0.9082 = 90.82%

b) P(50<X<55)

Now

z1 = (50-44)/3 = 2

z2 = (55-44)/3= 3.67

Area for z>3.59 is almost equal to 1

From the z- table we get

P(55 < X < 60) = P((50-44)/3 < z < (55-44)/3)

     = P(2 < z < 3.67)

     = P(z<3.67) - P(z<2)

     = 1 - 0.9772

     = 0.0228

or 2.28%

3 0
3 years ago
Explain your answer, please
Molodets [167]

.1.Scale Factor of Triangle STU to Triangle PQR= 1.5

2.Scale Factor of Trapezoid EFGH to Trapezoid JKLM =2

3. about 90 armadillo

1.Side ST: 15 ÷ Side PQ: 10 = 1.5

2.Side JM: 14 ÷Side EH: 7 = 2

3.843/7=120.428571429

843/4=210.75

210.75-120.428571429=90.321428571

This rounds to 90 armadillo

Hope this helps :3 ❤

8 0
3 years ago
Read 2 more answers
If a semi truck's trailer is 40 feet long, 10 feet wide, and has a height of 8 feet, what is its volume?
Temka [501]

First multiply 40 and 10 to get 400. Then multiply 400 by 8 to get 3,200.

Your answer would be: 3,200

8 0
3 years ago
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