11. Una escuela telesecundaria tiene una pista de carreras que mide de kilómetro.
1 answer:
Answer:
Juanita and Esperanza run 400 meters and 8400 meters respectively and Evelyn make 4.125 laps.
Step-by-step explanation:
<u>The complete question is</u>: A telesecundaria school has a race track that measures one kilometer .
Three students ran the following distances Juanita: 1 laps, Esperanza 21 laps and Evelyn: 1650 m. How many meters did Juanita and Esperanza run? And how many laps did Evelyn make?
As we know that 1 meter = 0.0025 laps
So, the number of laps Evelyn make = 1650 0.0025
= 4.125 laps
Also, 1 lap = meters
1 lap = 400 meters
So, the meters that Juanita run = 1 400 = 400 meters
Similarly, the meters that Esperanza run = 21 400
= 8400 meters
Hence, Juanita and Esperanza run 400 meters and 8400 meters respectively and Evelyn make 4.125 laps.
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Answer:
Step-by-step explanation:
From the given information:
The null and the alternative hypothesis can be well written as:
Given that:
n = 200
x = 135
Alpha ∝ = 0.05 level of significance
Then;
⇒
= 200 × 0.6 × (1 -0.6)
= 200 × 0.6 × 0.4
= 48 ≥ 10
The sample proportion
= 0.675
The test statistics
Z = 2.165
The P-value = P(Z > 2.165)
= 1 - P(Z < 2.165)
From the z tables
= 1 - 0.9848
= 0.0152
Reject the null hypothesis since P-Value is lesser than alpha. ( i.e. 0.0152 < 0.05).
Thus, there is enough evidence to conclude that the value of the population proportion is greater than 0.6