Construct a 90% confidence interval for u - H, with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below Assume the populations are approximately normal with unequal variances Stats X =71 mg s, = 3.99 mg, n= 15 x = 59 mg. s2 = 2 16 mg n, Confidence interval when variances are not equal < 2< (X1 -x2) +tc df is the smaller of n1 or n, - 1 Eter the andpoints of the intonual P P Round to the nearest intoger as needed)
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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