5/6 = 0.833
1/8 = 0.125
1/8 is less then 5/6 and has a denominator of 8
Answer:
The 80% confidence interval for the the population mean nitrate concentration is (0.144, 0.186).
Critical value t=1.318
Step-by-step explanation:
We have to calculate a 80% confidence interval for the mean.
The population standard deviation is not known, so we have to estimate it from the sample standard deviation and use a t-students distribution to calculate the critical value.
The sample mean is M=0.165.
The sample size is N=25.
When σ is not known, s divided by the square root of N is used as an estimate of σM:
The degrees of freedom for this sample size are:
The t-value for a 80% confidence interval and 24 degrees of freedom is t=1.318.
The margin of error (MOE) can be calculated as:
Then, the lower and upper bounds of the confidence interval are:
The 80% confidence interval for the population mean nitrate concentration is (0.144, 0.186).
Lets first reduce 12/20....12/20 = 3/5
5/3 + 3/5 = 25/15 + 9/15 = 34/15 or 2 4/15
Answer:
px = P(X=1) = 0.05
Step-by-step explanation:
px represent the success probability for X, meaning that it is just the probability that there is a discoloration of the applied glaze on the ceramic surface and for only one sample, the probability that the sample is discoloured is evidently given as 5% = 0.05
px = P(X=1) = 0.05
Step-by-step explanation:
Triangle 1 can have 30°, 75° and 75° angles whereas Triangle 2 can have 30°, 30° and 120° angles.
Since they do not have all 3 congruent angles, they are not similar.