Mathematics, 27.08.2021 22:40, daphnevlogs11
PNC bank introduced a $12 checking account fee July, 2019. To respond to customers who were very upset, management noted that this fee was one of the least compared to other banks. To confirm this claim, PNC selected a sample of 30 random bank customers. A sample of 30 customers paid an average of $12.55 per month on their interest-bearing accounts. Assume the population standard deviation is $1.75.
Required:
a. Construct a 95% confidence interval to estimate the average fee for the population.
b. What is the margin of error for this interval?
Answers: 2
Mathematics, 21.06.2019 21:30, camosloppy3150
Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?
Answers: 1
Mathematics, 21.06.2019 21:30, jabezslade22
Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.
Answers: 1
PNC bank introduced a $12 checking account fee July, 2019. To respond to customers who were very ups...
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