The residents of a village want to paint a sign that shows the elevation of their village relative to the sea. Their altimeter s
2 answers:
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Answer:
Step-by-step explanation:
Given data :
Sample standard deviation, s = 15
Sample mean,
n = 23
a). 98% confidence interval
∴
So, 98% CI is
Answer:
The 2 tickets will cost £44.10 after the increase.
Step-by-step explanation:
First, you have to multiply £19.60 by 12.5% to find the increase in the cost of tickets.
Add the price increase to the original cost to find the new cost of each ticket.
Multiply the result by 2 since you have to look for the cost of the 2 tickets.