Answer:
19.06$
Step-by-step explanation:
36.50+(15.75+12)-45.19
Answer:
b
Step-by-step explanation:
We must determine the the x value at 90% confidence interval. We find this from a table relating confidence intervals and x values. For 90%, z is 1.645.
WE must determine the mean of 19 and 23:
We must determine the standard deviation. We let n be the number of population which is 2. We need to take the numbers 19 and 23 and subtract each by the mean and square the answer:
We then determine the mean of these two values as:
Now we take the square root of 365:
The standard deviation is 19.1
The answer is b
Ruler 1 and Ruler 2 show 2.5 cm in length
Answer:
The answer is "failed to reject the null hypothesis" (it is not in the options available).
Step-by-step explanation:
If the P-value is bigger than the significance level, then the effect is statistically not significant. There is no enough evidence to reject the null hypothesis.
The answer is "failed to reject the null hypothesis" (it is not in the options available).