WU Confidence Levels and Confidence Intervals Discussion Response – Description
Mean of Age:
General Social Survey Dataset Age of the Respondent 49
Random Sample size of 100
I used a continuous variable Age of the Respondent with a random sample of 100 cases.
95% Confidence Interval
As a researcher, I am 95% confident that the mean for the population will fall between 33.53 and 38.97
90% Confidence Interval
As a researcher, I am 90% confident that the mean for the population will fall between 33.98 and 38.53
As I become less confident, I expect the intervals to decrease.
Q1. Age Mean 36.25 1.371
95% Confidence Interval for Mean Lower Bound 33.53
Upper Bound 38.97
90% Confidence Interval for Mean Lower Bound 33.98
Upper Bound 38.53
Random Sample size of 400
I used a continuous variable Adults in household with a random sample of 400 cases.
95% Confidence Interval
As a researcher, I am 95% confident that the mean for the population will fall between 3.46 and 5.08
90% Confidence Interval
As a researcher, I am 90% confident that the mean for the population will fall between 3.59 and 4.95.
As I become less confident, I expect that the intervals will decrease.
90% Confidence Interval for Mean Lower Bound 3.59
Upper Bound 4.95
ADULT CT: Number of adults in household Mean 4.27 .404
95% Confidence Interval for Mean Lower Bound 3.46
Upper Bound 5.08
Confidence Interval
Confidence intervals are defined in terms of confidence levels. By selecting a 95% confidence level, we are saying that there is a .95 probability or 95 chances out of 100 that a specified interval will contain the population mean. Confidence intervals can be constructed for any level of confidence, but the most common ones are the 90%, 95%, and 99% levels (Frankfort-Nachmias et al, 2020).
respond to the answer above.
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