Mathematics, 09.12.2020 20:00, freemankellie
Cindy has an online checking account at Sin City Bank. Her balance at the
beginning of February was $4,195.65. During the month, she made deposits
totaling $6,395.22, wrote checks totaling c dollars, was charged a maintenance
fee of $10, and earned $6.15 in interest. Her balance at the end of the month
was $5,200. What is the value of c?
Answers: 2
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Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
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Cindy has an online checking account at Sin City Bank. Her balance at the
beginning of February was...