Answer:
Step-by-step explanation:
Add the fractions by finding the greatest common factor of them all. if not any break up into 2 then add the other fraction to i
B. Situation A
C. Situation B
Explanation: Situation A has more students on the higher numbers.
Second Explanation: Situation B has numbers on the 70.
Answer:
z≈3.16
p≈0.001
we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.
Step-by-step explanation:
As a result of step 2, we can assume normal distribution for the null hypothesis
<em>step 3:</em>
z statistic is computed as follows:
z=
where
- X is the proportion of correct answers in the test (
) - M is the expected proportion of correct answers according to the null hypothesis (0.5)
- p is the probability of correct answer (0.5)
- N is the total number of questions in the test (40)
z=
≈ 3.16
And corresponding p value for the z-statistic is p≈0.001.
Since p<0.05, we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.
Answer:
111 students because they like to drink good water
Step-by-step explanation:
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700%10=70
70•25=1,750 Calories
Brainliest would be cool, hope this helped