Proportions
To construct a two-sample z-interval, what are the necessary steps?
What is the "margin of error" in a confidence interval for the difference of two population proportions based on?
What conditions must be met before using a Z-procedure to create a confidence interval for p1−p2?
What is the critical condition that needs to be checked when dealing with proportions in two-sample z-intervals?
What is it called when every individual has an equal chance of being selected because the sampler uses a random process like drawing names out of a hat?
What is the standard error of a difference in sample proportions used to indicate when constructing a confidence interval?
Which condition is required to estimate a confidence interval for the difference between two population proportions?
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Which condition needs to be checked before making confidence intervals using normal approximation method?
In constructing a 95% confidence interval for the difference between two sample proportions, how does doubling the sample sizes of both samples affect the margin of error, assuming variability remains constant?
When calculating a confidence interval for the difference between two sample proportions, , what assumption must be checked regarding successes and failures?