Mathematics, 20.01.2020 06:31, Kathryn014
Auniversity department administers a survey, regarding student satisfaction. based on the survey results, the department provides a confidence interval
estimate of 60% to 80% for student satisfaction. if the department wishes to
construct a confidence interval that more accurately represents the
proportion of student satisfaction, how should the design be altered?
a. use a smaller confidence level
b. use a smaller sample size
c. use a larger confidence level
d. use a larger sample size
Answers: 3
Mathematics, 21.06.2019 13:00, krishawnnn
Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny whiteโs income and expenses, what is the expected value of each insured customer?
Answers: 1
Mathematics, 21.06.2019 18:50, livvyr0cks
Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?
Answers: 1
Auniversity department administers a survey, regarding student satisfaction. based on the survey res...
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