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Test the given hypothesis for the mean and give the decision.
In a test of hypothesis, Ho: μ = 342 vs H : μ > 342 vs, the sample size is 9, the test statistics is found to be t = 2.7387 and the rejection region is t ≥ 2.821. State the correct decision and give justification for your decision.
Agricultural researchers are studying three different ways of planting peanuts to determine whether significantly different levels of production yield will result.
Using the empirical rule what percentage of adults is 25 - 45 has iq score bet 70 and 130.
If a blue ball is selected you win nothing. Let X be the amount that you win. The expected value of X and let the random variable X be a random number with the uniform density curve given below
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
At the .05 significance level, can we conclude that there is a difference in their mean times?
At 1 excavation site 8641 pot shards have been found that have not presently been cleaned also identified. Define the probability.
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
It is better to use the median rather than the mean for a distribution when:
Compute a 5-month moving average forecast for June through January.
A random variable X is normally distributed with mu = 60 and standard XXX = 11. What is zscore for X = 71
Suppose each employee in the company receives a $3000 raise for next year (each employee's salary is increased by $3000). The interquartile range of the salaries will
The mean of a normal probability distribution is 60; the standard deviation is 5.
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