Answer:
768
Step-by-step explanation:
Given that:
Error margin (E) = 5% = 0.05
Confidence level = 95%
Proportion p = 0.5 (since no prior value is given) ; also n1 = n2 = sample size
n = (Z / E)^2 * (1 - p)
1 - p = 1 - 0.5 = 0.5
Zscore at 95% confidence = 1.96
n = (1.96 / 0.05)^2 * 0.5
n = 39.2^2 * 0.5
n = 1536.64 * 0.5
n = 768.32
Hence, sample size = 768 SAMPLES
Answer:
I'm pretty sure its Thea reads fast than Eleanor
Step-by-step explanation:
The answer is 377.5, you would times 750 by 9%. Whatever the answer to the equation is, you take the answer and times that by 5.
Answer:
b) the mean will be off center in the boxplot and above the median
Step-by-step explanation:
First, we must inform that the median is not affected by outlier. Thus, there is possibility that a (some) student(s) score very high than others. This account for the reason why the mean value is higher than the median.
Since the mean is higher than the median, the score is skewed to the left! That is, majority of the students score low. Hence, we can say that the score is not exactly normal distributed.
NB:
Statistically the mean value given by the teacher is not significantly different from what the students obtained from the sample taken. This implies that, the sample is unbiased of the population mean as given by the teacher.
Length - meter (m)
volume - liter (l)
mass - gram (g)
An easy way to remember the common base units is the mnemonic:
"My Large Giraffe,” where the first letter of each word represents a base unit: m ⇒ meter, l ⇒ liter, and g ⇒ gram: My Large Giraffe.
