Answer:
205.81 to 214.19
Step-by-step explanation:
Sample size (n) = 50
Sample mean weight (X) = 210 grams
Sample standard deviation (s) = 18 grams
Confidence coefficient (Z) at 90% = 1.645
The confidence interval for the true mean breaking strength of cotton threads of this type, at a 90% confidence level, is given by:
The confidence interval is 205.81 grams to 214.19 grams.
Rectangular pyramid and triangular pyramid.
The word in the problem that indicates is a negative number is “descend”
Your answer in scientific notation is 2.355 * 10^14
Answer:
Step-by-step explanation:
A accurate map should be to scale. Scaled distances between features should agree with actual distances. The shapes of objects (eg houses) should be the same as in real life. All road names names and house numbers etc should be displayed.
However, to create such a map would need considerable expertise. It would be unreasonable to expect someone to produce it for a class project.
It would be useful if it was roughly to scale with houses shown in approximate positions and shapes. Names and numbers are essential. It would be useful to show North.
