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Calculate the value of the test statistic, set up the rejection region, determine the p-value, interpret the result, and draw the sampling distribution.
H0: u=100 H1: u not eq 100 SD=10, n=100, xbar=100, a=.05
the computer anxiety rating scale cars measures an individuals level of computer anxiety on a scale from 20 no anxiety
In a random sample 1040 consumers, you find 35% have stopped buying the product. At alpha=0.04, do you have enough evidence to support the claim?
What is a discrete and continuous random variable? What is an example of each variable? What are the similarities and differences between each variable?
A certain type of lightbulb has an average life of 500 hours with a standard deviation of 100 hours. The length of life of the bulb can be closely approximated by a normal curve.
What is the probability that he can open the lock at random if he knows that the numbers in the combination cannot be repeated?
In an effort to estimate the mean amount spent per household per month in a small Canadian town, data were collected for a sample of 50 households. The sample showed an average amount of $2000 and a standard deviation of $500.
Research shows that the life time of Everlast automobile tires is normally distributed with a mean value of 70,000 miles. What is the probability of having a tire that lasts more than 80,000 miles.
A husband and wife make their decisions independently of each other, and then they compare their decisions. If they agree, the decision is made; if they do not agree, then further consideration is necessary before a decision is reached.
probability based on a random experiment.1. the telephone numbers for a region of a state have an area code of 570. the
question timescnn voter polls monitor public opinion for the presidential candidates during 2000 presidential
The cost of an e-commerce website can vary a great deal. A market research team hypothesized that the cost of an average website is $3500.
Test the hypothesis that no difference exists between the groups at α = .05 and perform and report all related tests and statistics.
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