Answer:
We have 96% of confidence that the true proportion of people who responded that they have a plan to buy one electric car is between (0.121 and 0.303).
Step-by-step explanation:
For this case the estimated proportion of people who responded that they have a plan to buy one electric car is given by:

Where X represent the number of people who responded that they have a plan to buy one and n represent the sample size selected
We know that the confidence level for this case is 96% of confidence, then our significance level would be
and
. And the critical value would be:
The confidence interval for the true proportion is given by this expression:
Replacing the data given we got:
We have 96% of confidence that the true proportion of people who responded that they have a plan to buy one electric car is between (0.121 and 0.303).
Answer:
1 over 3. of an hour per truck.
Step-by-step explanation:
1/3 x 1 hour = 20 min.
20 min X 24 (each truck) = 480 mins
480 mins / 60 mins = 8 hours
1/3 of an hour per truck.
multiply the x and y coordinates in P and Tand equate it the right hand side x and y coordinates respectively.
Answer:
6√2
Step-by-step explanation:
Gm = √a×b
= √4×18
= √72
= √36×2
= √6²×2
= 6√2