Question
In: Statistics and Probability
Think of something you’d like to build a confidence interval for, whether it be a population...
Think of something you’d like to build a confidence interval for, whether it be a population mean, proportion, or standard deviation. Find some reliable data online and compute a 95% confidence interval for that population parameter. Provide a reference your data and interpret your results.
Solutions
Expert Solution
suppose we have two city ( city A and city B) and we want to study about difference in proportion of people in city A and city B who support to a candidate who is nominated for president election.
n1= sample size ( for city A).
X1 = number of people who support to condidate from city A.
P1= proportion of people who support to condidate from city A
n2 = sample size ( for city B)
X2=number of people who support to condidate from city B.
P2= proportion of people who support to condidate from city B.
People of city A and city B will be population 1 and population 2 respectively .
orchestra answered 1 year agoRelated Solutions
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stating 1. a population and a quantitative variable on that
population, 2. a sample size, 3. a sample mean of that variable,
and 4. a sample standard deviation, and 5. a confidence level, then
6. finding the interval. Then perform a test of significance on the
mean of the population by stating 7. both a null and an alternative
hypothesis and 8. an α-level, then finding 9. the one-sample...
Describe a confidence interval for the mean of a population by stating 1. a population and...
Describe a confidence interval for the mean of a population by
stating 1. a population and a quantitative variable on that
population, 2. a sample size, 3. a sample mean of that variable,
and 4. a sample standard deviation, and 5. a confidence level, then
6. finding the interval. Then perform a test of significance on the
mean of the population by stating 7. both a null and an alternative
hypothesis and 8. an α-level, then finding 9. the one-sample...
Describe a confidence interval for the mean of a population by stating 1. a population and...
Describe a confidence interval for the mean of a population by
stating
1. a population and a quantitative variable on that
population,
2. a sample size,
3. a sample mean of that variable, and
4. a sample standard deviation, and
5. a confidence level, then
6. finding the interval. Then perform a test of significance on the
mean of the population by stating
7. both a null and an alternative hypothesis and
8. an α-level, then finding
9. the one-sample...
Describe a confidence interval for the mean of a population by stating 1. a population and...
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stating 1. a population and a quantitative variable on that
population, 2. a sample size, 3. a sample mean of that variable,
and 4. a sample standard deviation, and 5. a confidence level, then
6. finding the interval. Then perform a test of significance on the
mean of the population by stating 7. both a null and an alternative
hypothesis and 8. an α-level, then finding 9. the one-sample...
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specific
X
Y
1870
3.38
1330
1.16
1760
1.58
1520
2.65
1300
1.98
1520
2.39
1640
2.49
1490
2.81
1300
2.95
1360
1.69
1940
3.49
1730
2.8
1790
2.95
1780
3.8
1730
2.64
1380
2.36
1580
3.1
1900
1.96
1640
3.08
1540
2.24
1350
2.59
1380
2.43
1780
1.95
1700
2.07
1610
2.34
1720
3.59
2070
3.59
1210
2.12
1720...
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