From telephone interviews with 980 teenagers, it was found that 765 of those teenagers supported legalization of marijuana. Does this survey substantiate that more than 75% of the teenage population are in favour of legalizing marijuana? Use significance level a = 0.05. State all assumptions. Construct a 95% confidence interval to estimate the true population proportion of teenagers supporting the legalization of marijuana.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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Question 3
from 100? State all assumptions and test the appropriate hypotheses using a = 0.05.
b) Construct a 95% confidence interval for the population mean reading.
3. From telephone interviews with 980 teenagers, it was found that 765 of those teenagers
supported legalization of marijuana.
a) Does this survey substantiate that more than 75% of the teenage population are in favour of
legalizing marijuana? Use significance level a = 9.05. State all assumptions.
h) Construct a 95% confidence interval to estimate the true population proportion of teenagers
supporting the legalization of marijuana.
4. The burning time (in minutes) of heaters used in the protection of orchards from frost
is measured for random samples of two different brands, A and B, yielding the following
results:
Hores
Brand Sample Size Mean Standard deviation
625
A
B
580
Ama
2022-08-20 Locked
Notes
An
14
12
-
0,
45
35
MacBook Air
Transcribed Image Text:from 100? State all assumptions and test the appropriate hypotheses using a = 0.05. b) Construct a 95% confidence interval for the population mean reading. 3. From telephone interviews with 980 teenagers, it was found that 765 of those teenagers supported legalization of marijuana. a) Does this survey substantiate that more than 75% of the teenage population are in favour of legalizing marijuana? Use significance level a = 9.05. State all assumptions. h) Construct a 95% confidence interval to estimate the true population proportion of teenagers supporting the legalization of marijuana. 4. The burning time (in minutes) of heaters used in the protection of orchards from frost is measured for random samples of two different brands, A and B, yielding the following results: Hores Brand Sample Size Mean Standard deviation 625 A B 580 Ama 2022-08-20 Locked Notes An 14 12 - 0, 45 35 MacBook Air
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