2 and 1 fourths tons us how many pounds?
1 answer:
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Answer:
The proportion is less than 0.75 only
Step-by-step explanation:
given that the ability of auto mechanics to identify simple engine problems, an automobile with a single suchproblem was taken to 72 different car repair facilities.
Sample proportion
Set up hypotheses as
H0: p =0.75
Ha: p < 0.75
(Left tailed test)
Assuming H0 to be true, std error of proportion =
p difference = -0.1667
Test statistic Z = p diff/std error = -2.50
p value = 0.0062
since p is less than0.05 at 5% significance level we reject null hypothesis
The proportion is less than 0.75 only
Given:
You spin the spinner once.
The possibilities are 6, 8, 17.
To find:
The probability of getting a prime number, i.e., P(prime).
Solution:
In the given numbers 6, 8, 17, only 17 is a prime number because it is divisible by 1 and itself.
6 and 8 are divisible by 2, so they are not prime.
The probability (in %) of getting a prime number is:
Therefore, the correct option is A.