Answer:
5
Step-by-step explanation:
first you do 11 divided by 5
then you multiply it by 2
which gives you 4.4
the closest number is 5
correct me if i am wrong
The null hypothesis is rejected because the probability is 0.52.
<h3>What are null hypotheses and alternative hypotheses?</h3>
In null hypotheses, there is no relationship between the two phenomena under the assumption that it is not associated with the group. And in alternative hypotheses, there is a relationship between the two chosen unknowns.
A political pollster claims that 55% of voters prefer candidate A.
To investigate this claim, a random sample of 75 voters is polled.
The pollster finds that 39 of those polled prefer candidate A.
He would like to know if the data provide convincing evidence that the true proportion of all voters who prefer candidate A is less than 55%.
This is left tailed test
H₀: p = 0.55
Hₐ: p < 0.55
Then the probability will be
p = 39 / 75
p = 0.52
P-value = 0.3015
Interpretation of P-value:- In a random sample of 75 voters, the chance of getting a sample statistic of 0.52 or below is 0.3015, assuming that the real population proportion of the voter base who chooses candidate A is 0.55.
More about the null hypotheses and alternative hypotheses link is given below.
brainly.com/question/9504281
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Responder:
<h3>45.49 unidades
</h3>
Explicación paso a paso:
La pregunta está incompleta. La pregunta puede reestructurarse así;
María va en bicicleta, por un camino completamente llano, pero inclinado; encuentra los 2 puntos de referencia de dicho camino y son D = (20; 32), E = (45; 70), encuentra la distancia recorrida por María.
La distancia total cubierta por María se puede obtener tomando la distancia entre los dos puntos de referencia usando la fórmula;
D = √ (x₂-x₁) ² + (y₂-y₁) ²
Dadas las coordenadas D = (20; 32), E = (45; 70),
DE = √ (45-20) ² + (70-32) ²
DE = √ (25) ² + (38) ²
DE = √625 + 1444
DE = √2069
DE = 45,49
Por lo tanto, la distancia total recorrida por María es de 45,49 unidades.
Answer:
7
Step-by-step explanation:
5p - 1 = 2p + 20
5p = 2p + 20 + 1
5p = 2p + 21
5p - 2p = 21
3p = 21
p = 7
