Answer:
I would day option B does
Answer:
A is the correct answer
Step-by-step explanation:
Solve the equation: 8 =
a) z = 10
b) z = 44
c) z=3
d) z=7
Step-by-step explanation:
the question isn't complete
Yes, because the source of the data was unbiased.
Yes, because the results are unlikely to occur by chance.
No, because the sample size was too small to reach a conclusion.
Answer:
Step-by-step explanation:
Here population parameter p= 1% = 0.01
But sample proportion = 0.03
Sample size = n=600
Std error of the sample =
Let us assume significance level as 5%
For proportion z critical for 95% is 1.96
Margin of error = 1.96(std error) = 0.024
Conf interval for proportion lower bound = 0.01-0.024 =- 0.014
Upper bound = 0.01+0.024 = 0.124
Thus conf interval (-0.014, 0.124)
Our sample proportion is 0.03 which does not lie within this interval.
Hence we conclude that
Yes, because the results are unlikely to occur by chance.
Answer:
Yes, because the results are unlikely to occur by chance.
Step-by-step explanation:
We have to remember that when dealing with statistics the larger the sample we are taking, the more the results will tend to the statistical reality, for example, if we flip a coin, the chances or statistics are 50%-50% but if we only toss it two times, theres a singnificant chance that it could be 100% tails, the more we continue to toss the coin, the closer we will get to the 50-50, here we have a really large sample of 600 computers, where 3% of them were defective, so we can assure that it wasn´t by chance, because an increase of 2% on the percetange of the defective devices from the ideal to the reality is not by chance.
Answer:
(C) 25,35 and 175,35
Answer: about 500
Step-by-step explanation:
Answer:
Step-by-step explanation:
800 meters
Answer:
1/8th chance
Step-by-step explanation:
two outcomes per toss, H and T, so 1/2 probability of getting tails
0.5*0.5*0.5 = 1/8th chance