Elasticity is an important parameter of kernmantle ropes (used in climbing, caving, mountaineering, etc.). One of the ways of describing it is static elongation (measured under a resting load of 80 kg). Static elongation was measured for two random rope samples of two different types of weaving. type-1 6.346.16 6.326.21 6.36 6.43 6.026.216.47 6.216.49 6.21 6.16 6.196.29 6.33 6.51
type-2 6.38 6.54 6.496.476.46 6.46 6.52 6.356.33 |6.35 6.31 6.376.13 6.45

Required:
a. Assume that σ1 = σ2. Is there evidence to support the claim that type-2 ropes are more elastic than type-1?
b. Find the P-value for this test.

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Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000