thefootballman1115
02.04.2020 •
Mathematics
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow. 3 7 8 9 10 10 10 9 9 9 9 8 5 6 7 7 9 8 10 9 8 7 6 8 7 9 5 3 9 10 10 9 9 8 9 8 6 10 8 4 7 3 10 8 9 8 10 10 8 8Develop a 95% confidence interval estimating of the population mean rating for Miami. Round your answers to two decimal places. Enter your answer using parentheses and a comma, in the form (n1,n2). Do not use commas in your numerical answer (i.e. use 1200 instead of 1,200, etc.)
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Ответ:
See below.
Step-by-step explanation:
Triangle ABC is congruent to triangle DEF (Given)
Angle ACB is congruent to angle ECG. (Vertical angles theorem)
Angle CEG is congruent to angle DEF. (Vertical angles theorem)
Angle DEF is congruent to angle ABC. (Definition of congruent triangles)
Angle CEG is congruent to angle ABC. (Substitution property of equality).
Triangle ABC is similar to triangle GEC. (Angle angle similarity postulate- if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.)