An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop computer on overnight business trips. (b) A survey that found that 359 of 549 business travelers use a laptop computer on overnight business trips. Based on this survey, what is the sample proportion of business travelers who use a laptop computer on overnight business trips? (Round your answer to four decimal places.) (c) What is the test statistic? (Round your answer to two decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value = (d) Use α = 0.05. What is your conclusion? Reject H0. We cannot conclude that the population proportion differs from 2 3. Do not reject H0. We cannot conclude that the population proportion differs from 2 3. Reject H0. We can conclude that the population proportion differs from 2 3. Do not reject H0. We can conclude that the population proportion differs from 2 3.
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.
An airline promotion to business travelers is based on the assumption that two-thirds of business travelers use a laptop computer on overnight business trips.
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