Mathematics, 18.12.2019 21:31 bertha4082
At a major credit card bank, the percentages of people who historically apply for the silver, gold and platinum cards are 60 %, 30 % and 10 % respectively. in a recent sample of customers responding to a promotion, of 200 customers, 103 applied for silver, 68 for gold and 29 for platinum. is there evidence to suggest that the percentages for this promotion may be different from the historical proportions? a) what is the expected number of customers applying for each type of card in this sample if the historical proportions are still true? b) compute the chi squared statistic. c) how many degrees of freedom does the chi squared statistic have?
Answers: 1
Mathematics, 21.06.2019 18:40
Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2
Answers: 1
Mathematics, 21.06.2019 21:00
Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?
Answers: 1
Mathematics, 22.06.2019 00:00
Which diagram shows lines that must be parallel lines cut by transversal?
Answers: 3
Mathematics, 22.06.2019 00:00
What is 617.3 miles and each gallon of gas the car can travel 41 miles select a reasonable estimate of the number of gallons of gas karl used.
Answers: 1
At a major credit card bank, the percentages of people who historically apply for the silver, gold a...
Physics, 15.10.2019 01:30
Computers and Technology, 15.10.2019 01:30
Social Studies, 15.10.2019 01:30
History, 15.10.2019 01:30
History, 15.10.2019 01:30
Mathematics, 15.10.2019 01:30
Mathematics, 15.10.2019 01:30
Biology, 15.10.2019 01:30
Spanish, 15.10.2019 01:30
Mathematics, 15.10.2019 01:30
Chemistry, 15.10.2019 01:30