Help, offering BRAINLIEST AND POINTS. One year ago, Lindsey deposited $250 into a savings account. Her balance is now $253. Two
1 answer:
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Answer:
8a. 0 8b. -1/3
Step-by-step explanation:
slope formula:
8a. => (8 + 12)/(17 - 17) = 20/0 = 0
8b. (1 + 2)/(-3 - 6) = 3/-9 = - 1/3
Given :
p = 0.68
margin of error, E = 0.1
99% confident interval
alpha, α = 1 - 0.99
= 0.01
∴ (z-critical value)
Sample size =
= 144.37
= 145 (rounded off)
Therefore, there are 145 businesses does she need to sample to meet this criteria.