Mathematics, 12.08.2020 05:01 izzynikkie
A newspaper conducted a statewide survey concerning a proposal to raise taxes in order to prevent budget cuts to education. The newspaper took a random sample (assume it is an SRS) of 1200 registered voters and found that 580 would vote to raise taxes. Let p represent the proportion of registered voters in the state that would vote to raise taxes.
1. A 90% confidence interval for p is:
a. 0.483 ± 0.014.
b. 0.483 ± 0.024.
c. 0.483 ± 0.028.
d. 0.483 ± 0.249.
2. How large a sample n would you need to estimate p with margin of error 0.01 with 95% confidence? Use the guess p* = 0.5 as the value for p.
a. n = 49
b. n = 1500
c. n = 4800
d. n = 9604
3. Let p be the proportion of citizens in the city opposed to the ban on smoking in public places. To determine if the majority of citizens in the city oppose the ban on smoking in public places,
a. test the hypotheses H0: p = 0.50, Ha: p 0.50.
b. test the hypotheses H0: p = 0.50, Ha: p > 0.50.
c. test the hypotheses H0: p = 0.77, Ha: p > 0.77.
d. none of the above.
Answers: 3
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, 22.06.2019 00:00
Iwill arward ! , i if bt ≅ eu , bu ≅ et , prove: ∠b ≅ ∠e. fill in the blanks: draw segment ut ≅ bt≅ bu ≅ △ubt ≅ △
Answers: 1
A newspaper conducted a statewide survey concerning a proposal to raise taxes in order to prevent bu...
Mathematics, 04.12.2020 01:40
Health, 04.12.2020 01:40
Chemistry, 04.12.2020 01:40
Mathematics, 04.12.2020 01:40
Mathematics, 04.12.2020 01:40
Mathematics, 04.12.2020 01:40
Social Studies, 04.12.2020 01:40
Biology, 04.12.2020 01:40
Mathematics, 04.12.2020 01:40
Mathematics, 04.12.2020 01:40
Mathematics, 04.12.2020 01:40