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shtirl [24]
3 years ago
13

7. The West Warriors scored 25 points. This was 12 points less than the Flinn Falcons.

Mathematics
1 answer:
Karolina [17]3 years ago
4 0
Answer: 25-12=13
explanation:

The Flinn Falcons only scored 13 points.
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A publisher reports that 344% of their readers own a particular make of car. A marketing executive wants to test the claim that
inysia [295]

Answer:

No, there is not enough evidence at the 0.02 level to support the executive's claim.

Step-by-step explanation:

We are given that a publisher reports that 34% of their readers own a particular make of car. A random sample of 220 found that 30% of the readers owned a particular make of car.

And, a marketing executive wants to test the claim that the percentage is actually different from the reported percentage, i.e;

Null Hypothesis, H_0 : p = 0.34 {means that the percentage of readers who own a particular make of car is same as reported 34%}

Alternate Hypothesis, H_1 : p \neq 0.34 {means that the percentage of readers who own a particular make of car is different from the reported 34%}

The test statistics we will use here is;

                T.S. = \frac{\hat p -p}{\sqrt{\frac{\hat p(1- \hat p)}{n} } } ~ N(0,1)

where, p = actual % of readers who own a particular make of car = 0.34

            \hat p = percentage of readers who own a particular make of car in a

                  sample of 220 = 0.30

            n = sample size = 220

So, Test statistics = \frac{0.30 -0.34}{\sqrt{\frac{0.30(1- 0.30)}{220} } }

                             = -1.30

Now, at 0.02 significance level, the z table gives critical value of -2.3263 to 2.3263. Since our test statistics lie in the range of critical values which means it doesn't lie in the rejection region, so we have insufficient evidence to reject null hypothesis.

Therefore, we conclude that the actual percentage of readers who own a particular make of car is same as reported percentage and the executive's claim that it is different is not supported.

3 0
2 years ago
Can somebody help me out my grade are bad
BigorU [14]
Just copy the triangle but on the opposite side I think. Take the coordinates and flip it onto the other side until its a perfect match
4 0
2 years ago
Read 2 more answers
What is 6 times 4/5 In fraction form?
den301095 [7]
24/5 or 4 4/5 it is simple to do it. Just put a denominator of 1 under the 6 and multiply!
4 0
3 years ago
Read 2 more answers
Please help fast........
Neko [114]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
A company plans to launch a new product. They have traditionally had a 60% success rate with the launch of new products. Market
Juliette [100K]

Answer:

The probability that the product will be successfully launched given that the market test result comes back negative is 0.30.

Step-by-step explanation:

Denote the events provided as follows:

<em>S</em> = a product is successfully launched

<em>P</em> = positive test market result

The information provided is:

P (S) = 0.60

P (P | S) = 0.80

P (P | S') = 0.30

Then,

P (P' | S) = 1 - P (P | S) = 1 - 0.80 = 0.20

P (P' | S') = 1 - P (P | S') = 1 - 0.30 = 0.70

Compute the probability of positive test market result as follows:

P(P)=P(P|S)P(S)+P(P|S')P(S')

         =(0.80\times 0.60)+(0.30\times 0.40)\\\\=0.48+0.12\\\\=0.60

The probability of positive test market result is 0.60.

Then the probability of negative test market result is:

P (P') = 1 - P (P)

        = 1 - 0.60

        = 0.40

Compute the probability that the product will be successfully launched given that the market test result comes back negative as follows:

P(S|P')=\frac{P(P'|S)P(S)}{P(P')}

             =\frac{0.20\times 0.60}{0.40}\\\\=0.30

Thus, the probability that the product will be successfully launched given that the market test result comes back negative is 0.30.

6 0
3 years ago
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