Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:

In which:
is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a two-tailed <em>95% confidence interval</em>, with 49 - 1 = <em>48 df</em>, is t = 2.0106.
Hence:


The 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).
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Possible warning signs of dieting are Dramatic weight loss. Keep warm by layering your clothing. Is obsessed with food, calories, fat grams, diets, and weight loss. This is further explained below.
<h3>What is
dieting?</h3>
Generally, In order to reduce weight, one must limit one's intake to minimal quantities or certain types of food.
In conclusion, Dramatic weight loss is one of the possible warning symptoms of dieting. Layer your garments to keep warm. A person who is preoccupied with eating and weight reduction.
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All of the following are involved in Type 2 hypersensitivity, except D. IgE
<h3>What is Type 2 hypersensitivity?</h3>
This refers to the type of reaction where the body has an immune reaction to antibodies (IgG or IgM) that are directed at certain areas of the body that leading to functional loss, or tissue damage
Hence, we can see that from the complete question, there are different answer choices that show the different antibodies that are involved in the immuno-reaction and the one that is NOT involved in the list of options is IgE.
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