Mathematics, 25.10.2021 09:10 Lena904
Exercises 17 through 20 refer to the following story: The city of
Cleansburg has 8325 registered voters. There is an election for
mayor of Cleansburg, and there are three candidates for the posi-
tion: Smith, Jones, and Brown. The day before the election a tele-
phone poll of 680 randomly chosen registered voters produced the
following results: 306 people surveyed indicated that they would
vote for Smith, 272 indicated that they would vote for Jones and
102 indicated that they would vote for Brown.
17. (a) Describe the population for this survey.
(b) Describe the sample for this survey.
(c) Name the sampling method used for this survey.
18. (a) Give the sampling proportion for this survey.
(b) Give the sample statistic estimating the percentage of
the vote going to Smith.
19. Given that in the actual election Smith received 42% of the
vote, Jones 43% of the vote, and Brown 15% of the vote, find
the sampling errors in the survey expressed as percentages.
20. Do you think that the sampling error in this example was
due primarily to sampling bias or to chance? Explain your
answer.
Answers: 1
Mathematics, 21.06.2019 17:30
If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
Answers: 1
Mathematics, 21.06.2019 21:00
Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2
Answers: 2
Mathematics, 22.06.2019 00:00
Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.
Answers: 2
Exercises 17 through 20 refer to the following story: The city of
Cleansburg has 8325 registered v...
History, 25.01.2021 17:00
Mathematics, 25.01.2021 17:00
Computers and Technology, 25.01.2021 17:00
Mathematics, 25.01.2021 17:00
Social Studies, 25.01.2021 17:00
Mathematics, 25.01.2021 17:00
Mathematics, 25.01.2021 17:00
Social Studies, 25.01.2021 17:00
Biology, 25.01.2021 17:00
Mathematics, 25.01.2021 17:00