2. In a simple random sample of 125 households, the sample mean number of personal computers was 1.18. Assume the population standard deviation is 0.33. a. Construct an 80% confidence interval for the mean number of personal computers. Round the answer to at least two decimal places. nd Ince the year 2000 for true mean length of all for decimal place. b. What calculator function did you use to create this interval? (T-interval, Z-interval, etc.) c. If the sample size were 95 rather than 125, would the margin of error be larger or smaller than the result in part (a)? Interpret inte val in terms of d. If the confidence levels were 99% rather than 80%, would the margin of error be larger or smaller than the result in part (a)?

Q: this does not answer the question

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A: According to the given question, consider the following information- n=12p=0.49

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A:

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A: We have to state whether d, e are true or false with justification.

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A: SOLUTION-

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A: Given:

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A: We have to find length

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A:

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A: We can use different indexes to express the distinct values of a random variable.

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A: Please see the below picture for detailed solution.

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A: The given triangle is:

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A: See the details solution in below

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A:

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A: According to the given information in this question We need to answer part d

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A: To explain that the given answer is correct or not.

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Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

Counting Theory

The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.