Mathematics, 21.04.2020 16:54 LlayahHarbin
A department store wants to know what fraction of its customers in a certain market have store credit cards, and what their average balance might be. Of the 120 customers surveyed, 30 had store credit cards. Amongst those customers, the average balance was $600, with a sample standard deviation of $80. Find the 98% confidence interval for the average credit card balance. ( , ) Round your answers to two decimal places.
Answers: 3
Mathematics, 21.06.2019 15:00
Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?
Answers: 1
Mathematics, 21.06.2019 16:20
Two positive integers are 3 units apart on a number line. their product is 108. which equation can be used to solve for m, the greater integer? m(m โ 3) = 108 m(m + 3) = 108 (m + 3)(m โ 3) = 108 (m โ 12)(m โ 9) = 108
Answers: 1
Mathematics, 21.06.2019 18:30
Three times the sum of a number and seven is negative thirty-six. what is the number?
Answers: 2
Mathematics, 21.06.2019 19:30
Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong
Answers: 1
A department store wants to know what fraction of its customers in a certain market have store credi...
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