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☆
- Lox
1 point
A random sample of 500 army recruits has a mean height
of 68 inches with a standard deviation of 2.5 inches. If a
95% confidence interval is constructed, with all the
conditions having been met, what is the margin of error?
a) 68
c) .22
b) 6.02
d).184

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.