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Lerok [7]
3 years ago
5

A veteran math teacher at a large high school claims that 93% of their students pass the state’s final exam. A random sample of

120 of the teacher’s students was chosen, and 108 passed the state’s final exam. Let p hat = the proportion of the random sample who passed the state’s final exam.
The probability that 90% or fewer of this teacher’s students passed the state’s final exam is 0.096. Does this result provide convincing evidence against the teacher’s claim?

Yes, it is expected that at least 90 of the students will pass the state’s final exam.
Yes, the probability of seeing the sample result is so far from what is expected that the probability of it occurring by chance alone is very unlikely.
No, there is a very small chance of seeing the sample result. It is unlikely to occur by chance alone.
No, the difference between the sample result and what is expected is not extreme enough. The probability of it occurring by chance alone is not unlikely.
Mathematics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

Yes, the probability of seeing the sample result is so far from what is expected that the probability of it occurring by chance alone is very unlikely.

Step-by-step explanation:

I hope this is right

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The table shows the outputs, y, for different inputs, x:
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Yes, the data represent a function because there is at least one x-value for every y-value.

Part B:
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Part C:

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3 years ago
ASAP WILL MARK BRAINLEIST
podryga [215]

The probability that a transmission will last less than 14 years is 5%

Step-by-step explanation:

Given

Mean = 16 years

SD = 1.2 years

We have to find the probability that a transmission will last less than 14 years

First of all we have to find the z-score of the value

Z-score is given by:

z = \frac{Value-mean}{SD}\\= \frac{14-16}{1.2}\\= \frac{-2}{1.2}\\= -1.6666

We will use the z-score table to find the probability of being less than 14

So,

From z-score table we get the value for -1.6666

P(z = -1.666) = 0.04846

Converting into percentage

= 0.04846* 100

= 4.846

Rounding off to nearest percentage

5%

Hence,

The probability that a transmission will last less than 14 years is 5%

Keywords: Probability, z-score

Learn more about probability at:

  • brainly.com/question/8358304
  • brainly.com/question/8301701

#LearnwithBrainly

7 0
3 years ago
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Drupady [299]

Answer:

Step-by-step explanation:10x+15+2+x

11x+17

5 0
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X over negative 10 equals 7
alexdok [17]
X/-10 = 7
Step 1: Multiply by -10

(x/-10)*-10 = 7*-10

x = -70
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3 years ago
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