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Ganezh [65]
3 years ago
12

You are listening to a news report that claims a new study has found convincing evidence that a particular weight-loss product i

s much more effective than diet and exercise Which statement would be an example of scientifically "convincing" evidence in this case?
1.) All the participants lost at least 10 pounds
2.) Only the participants who used the weight-loss product lost weight
3.) The participants who used the weight-loss product lost an average of 3 pounds, whereas the participants who used diet and exercise lost an average of 2 pounds.
4.) The study has a hypothesis.
5.) Statistical tests showed significantly more weight loss in the participants who used the weight-loss product than those who relied on diet and exercise.
Mathematics
1 answer:
Dominik [7]3 years ago
6 0

Answer:

5)

Step-by-step explanation:

Just one statement or is it "statements"

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Fifty percent of households say they would feel secure if they had​ $50,000 in savings. you randomly select 8 households and ask
Setler [38]

Step-by-step Answer:

"Fifty percent of households say they would feel secure if they had​ $50,000 in savings."  => population mean for satisfaction is 0.50.

N = number of household asked.

x = number of satisfied households.

Use binomial probability,

B(x,N,p) = C(N,x)*(p^x)*(1-p)^(N-x)

For 8 households and 3 questions (a), (b), and (c), we can tabulate all values of x and extract answers from there.

x   B(x,8,0.5)       cumulative probability

0  0.00390625  0.00390625

1  0.03125           0.03515625

2  0.109375        0.14453125

3  0.21875           0.36328125

4  0.2734375      0.63671875

5  0.21875           0.85546875

6  0.109375        0.96484375

7  0.03125          0.99609375

8  0.00390625  1.0

From the table, we see clearly that

(a) probability  P(x=5)=0.2188

(b) probability  P(x>5)=1-0.8555=0.1445

(c) probability  P(x<=5) = 0.8555

Note: All answers above have been rounded to the nearest 4 places of decimals.

5 0
3 years ago
Help please ! thank u sm
astraxan [27]

Given:

The figure of triangle LNM.

To find:

The Law of Sines for the given triangle.

Solution:

Law of sines: In triangle ABC,

\dfrac{\sin A^\circ}{a}=\dfrac{\sin B^\circ}{b}=\dfrac{\sin C^\circ}{c}

Similarly, the Law of Sines for the given triangle LNM is:

\dfrac{\sin L^\circ}{l}=\dfrac{\sin N^\circ}{n}=\dfrac{\sin M^\circ}{m}

Therefore, the correct option is b.

7 0
3 years ago
Plllsssss help I’m doing test pls pls pls pls
Naddika [18.5K]

Answer:

might be wrong..but i think its all real numbers

6 0
3 years ago
Which expressions are equivalent to
andrew-mc [135]

Answer

30

Step-by-step explanation:

the answer is :

90 - 60 = 30

3 0
3 years ago
Read 2 more answers
escribe en cada fila dos divisiones que den el cociente o resultado que se te indica en la primera columna matemáticas con foto​
Ann [662]

Answer:

I don't know  what you said

Step-by-step explanation:

But thanks for the points.

7 0
3 years ago
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