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Section I: Multiple Choice Select the best answer for each question.In preparing to
Chapter 8, Problem T8.3(choose chapter or problem)
In preparing to construct a one-sample t interval for a population mean, suppose we are not sure if the population distribution is Normal. In which of the following circumstances would we not be safe constructing the interval based on an SRS of size 24 from the population?
(a) A stemplot of the data is roughly bell-shaped.
(b) A histogram of the data shows slight skewness.
(c) A boxplot of the data has a large outlier.
(d) The sample standard deviation is large.
(e) A Normal probability plot of the data is fairly linear.
Questions & Answers
QUESTION:
In preparing to construct a one-sample t interval for a population mean, suppose we are not sure if the population distribution is Normal. In which of the following circumstances would we not be safe constructing the interval based on an SRS of size 24 from the population?
(a) A stemplot of the data is roughly bell-shaped.
(b) A histogram of the data shows slight skewness.
(c) A boxplot of the data has a large outlier.
(d) The sample standard deviation is large.
(e) A Normal probability plot of the data is fairly linear.
ANSWER:Step 1 of 3
Given that,
To construct a one-sample t interval for a population mean, and we are not sure if the population distribution is Normal.