First one:
Height of plants (attribute)
Inches (unit of measurement)
Ruler? (means of measuring)
10 (# of observations)
Second one:
Weight of dogs (attribute)
Pounds (unit of measurement)
Scale? (means of measuring)
8 (# of observations)
Answer: The probability of this ocurring by chance is less than 0.01.
The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.
Step-by-step explanation:
Since we have given that
Number of times a coin tossed = 500
Number of times head occurs = 416
So, our Z-score would be

So, At significance level of 0.01, p-value of Z-score is .202704.
and p-value < 0.01, i.e. 0.202704<0.832.
Hence, the probability of this ocurring by chance is less than 0.01.
The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.
Answer:
r=14 in
Step-by-step explanation:
The volume of a cylinder is given by:

So,
