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What do you know? A research report described two results that both achieved statistical significance at the 5% level. The P-value for the first is 0.048; for the second it is 0.0002.
Do the P-values add any useful information beyond that conveyed by the statement that both results are statistically significant? Write a short paragraph explaining your views on this question.
Larry Jacava is considering producing a novelty item for golfers that will be sold through pro shops. Larry has decided on a selling price of $3.50 for the item. The item's variable cost of production is $2.00 per unit with a fixed cost of $3,750.
Let X1 and X2 constitute a random sample from a normal population with σ2 = 1. If the null hypothesis μ = μ0 is to be rejected in favor of the alternative hypothesis μ = μ1 > μ0 when x > μ0 + 1, what is the size of the critical region?
The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
a student wants to assess whether her dog muffin tends to chase her blue ball more often than she chases her red ball.
Each undergraduate course taught cost the college an average of $2,500 in faculty wages, and each graduate courses cost $ 3,000. How many undergraduate and graduate courses should be taught in the fall so that the total faculty salaries are kept t..
Your friend tells you that the proportion of active Major League Baseball players who have a batting average greater than .300 is greater than 0.56, a claim you would like to test. The hypotheses for this test are Null Hypothesis: p ≤ 0.56, Altern..
Given a level of confidence of 99% and a population standard deviation of 10, what other information is necessary:
the function fx k1-12x x gt 0 is the distribution function for a discrete random variable x. here x denotes the
the percentage of squirrels that test positive for rabies is 6.a what is the probability that for the next 10 squirrels
a discrete random variable can be described as binomial distribution if is satisfies four conditions briefly discuss
1. Differentiate the main actions between doing and improving your activities. 2. Determine the overall manner in which variation has affected your activities.
If there are 20 people in the room, 12 men and 8 women, what is the probability of picking two people, without replacement, getting a woman on the first and a man on the second?
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