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Time spent on twitter 19.5 minutes, assume standard deviation 8 minutes, simple random sample 100 visits a month has a sample mean of 21.43 minutes. A social media critic is interested in knowing whether twitter visits has increased. Perform hypothesis test and Compute P value.
Convert the following scale data to ordinal or ranked data, starting with a rank of 1 for the smallest data point.
Refer to Exercise. The Roper Organization selected a random sample of adults in the United States for this poll. Suppose listeners to a late-night radio talk.
Suppose that 12 people must travel in 3 cars containing 4 people each from LA to New York. How many different arrangements are there?
The Minnesota Department of Transportation installed a state-of-the-art weigh-in-motion scale in the concrete surface of the eastbound lanes of Interstate 494 in Bloomington, Minnesota.
First, please review the five-step outline for a decision-oriented measurement problem. Think about how you might address each step in a project at your work (or any other real-world application).
a. Assuming the advertising claim is true, what is the probability of the observed event?- Assuming the claim is true, what is the probability of observing two or fewer successes?
In the events that led to the Declaration of Independence (1776), do you think the colonists were unreasonable and as much to blame as the British government?
A consumer purchases 12 frozen chickens. What is the probability that the consumer will have more than 6 contaminated chickens.
Cholesterol. Assume the cholesterol levels of adult American women can be described by a Normal model with a mean of 188 mg/dL and a standard deviation of 24.
Provide an example of another personal variable that might be directly related to y along with an example of a personal variable that you think would tend to be inversely related to y.
A group of 12 patients are given the medicine. If the claim is true, what is the probability that 8 have relief in a few minutes?
Five have a 3/10,000 chance for failure. Four have a 4/10,000 chance for failure. One componet has a 1/100 chance for failur. What is the overall reliability of the product?
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