The number of customers who visited more on first day = ( 5 x - 2)
<h2>
248 more people visited on the first day. </h2>
Step-by-step explanation:
The total number of customers visiting on first day = (6 x - 3)
The total number of customers visiting on second day = (x - 1)
The difference in the number of customers
= Number of customer visiting ( First day - Second Day)
= (6x - 3) - (x- 1) = 6 x - 3 - x + 1 = 5 x - 2
So, the number of customers who visited more on first day = ( 5 x - 2)
Now, when x = 50, ( 5 x - 2) = (5 (50) - 2) = 250 - 2 = 248
Hence, 248 more people visited on the first day.
Answer:
Step-by-step explanation:
Answer:
900
Step-by-step explanation:
Margin of error = critical value × standard error
The margin of error is given to be 0.05.
At 99.5% confidence, the critical value is z = 3.
The standard error for a proportion is √(pq/n). Since p is not given, we will assume p = 0.5.
0.05 = 3 √(0.5 × 0.5 / n)
n = 900
