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1. A bridge is to be built across a deep canyon. An engineer is interested in determining the distribution of the random variable X, the maximum wind speed per day at the site so that the bridge can be designed to withstand potential stresses that will be placed upon it from this source.
2. A botanist thinks that indoleacetic acid is effective in stimulating the formation of roots in cuttings from lemon trees. In an experiment to verify this contention, two groups of cuttings are to be used. One group is to be treated with a dilute solution of indoleacetic acid; the other is given only water. Later a comparison of the root systems of the two groups will be made.
The scores, X, of an examination may be assumed to be normally distributed with μ = 70 and σ2 = 49. What is the probability that:
What is the hypothesis being tested here? What are Ho and Ha? What is the name of the test you will run? Run the appropriate SPSS test and include the SPSS output here
Sample standard deviation of 1.1%. Using alpha = 0.05, does the analyst have statistical evidence to reject the claim made by the magazine?
Would you be surprised if the judge selected 12 or more photographs taken by the 35-mm camera? Explain, based on the probability involved.
a nonprofit company concerned with the school dropout rate in a nearby state has designed a tutoring program aimed at
Suppose we are dealt five cards from an ordinary 52-card deck. What is the probability that (a) we get all four aces, plus the king of spades? (b) all five card
A craftsperson makes stuffed animals for sale. 85% of the animals she makes are bears while the remaining 15% are rabbits. Suppose she sells 75% of her bears at craft shows but only 50% of her rabbits are sold at craft shows.
a companyis developing a new high-performance wax for cross country ski racing. in order to justify the price marketing
clarify how you would display each of the following in a report 1. the outcomes of a t test with 38 degrees of freedom
10% of the north district students failed, 15% of the south district students failed, and 5% of the central district students failed. Develop a joint probability table.
You may have been in a wine store and wondered just how useful those posted wine ratings are (usually a scale with 100 as the top score).
If voter #1 voted (A, B, C, D, E) with A as the most favorable and E the least favorable, and voter #2 voted (B, C, A, E, D), what is the Spearman
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