Answer: 10 customers.
Step-by-step explanation:
The formula to find the required sample size :
(1)
, where p= prior population proportion.
n= sample size.
= Population standard deviation from previous studies.
Let p be prior population proportion of the customers who click on ads on their smartphones .
As per given , we have
p=0.62
E= 0.27
For 92% confidence , significance level : 
The critical value of z for 92% confidence interval from z-table would be

Put theses values in the formula (1), we will get


Therefore , the company should survey 10 customers .
Answer:
36°
Step-by-step explanation:
it's the same as the given number.
lines l, m, and n are parallel to each other and the same line is intersecting all three of them. since the 36° angle is in the same placement as the x° angle, they are the same.
have a lovely day <3
Answer:
A.
Step-by-step explanation:
one x value cant go to two y values
23-9= 14
14 divide by 2 = 7
so 7 baseball cards in a packet
Find the total number of tickets sold by multiplying the number of students by the number of tickets each student sold:
23 x 44 = 1012 total tickets.
Each ticket sold for $7, now multiply the total tickets sold by the price of a ticket:
1012 x 7 = $7,084 total money