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1-State whetherbeach othe following true or false, and explain why
A) a high negative correlation value, for example, p=-.95, means that the value of the regression line slope, beta, must be a large negative number
B)if a t-test of the hypothesis H0: p=0 versus Ha: p not equal to 0 is rejected at the alpha=0.05 level, then p cannot be a number very near zero.
2-suppose the correlation coefficient between FEV for 100 sets of identical twins is 0.7, whereas the true correlation between fraternal twin is known to be 0.38. Carry out the appropriate hypothesis test for testing the null hypothesis that the correlation between FEV values is greater among identical twins than among faternal twins.
Suppose you, as manager of Tennessee Grilled Pork, will submit proposals for a small business loan and a city business grant to help fund the building of the new location you submitted to the management teams.
At α = 0.01, is the degree of certainty independent of credits earned?
Advertisers need to know which age groups are likely to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group Perform the chi-square test for a uniform distribution at α = .01
Which hypothesis-testing procedure would you use in the following situations? The mean time an American family lives in a particular single-family dwelling is 11.8 years.
Rolling a die Simulate 36 rolls of a fair die. Give the relative frequency and the corresponding theoretical probability of each of the outcomes and compare them.
What is the difference between hypothesis and theory? If there is a difference between the two, what comes first - hypothesis or theory?
Given that a Brand A battery just failed, what is the expected value of the time we wait until the next Brand B failure?"
Suppose the regression equation that has been used to estimate the value of existing homes is as follows; Interpret the meaning of the slopes of this equation.
The statistics showed that students studied an average of 20 hours per week with a standard deviation of 10 hours. What is the probability that a sample mean would exceed 20 hours per week?
Dunn Poitiac has compiled the following sales data regarding the number of cars sold over the past 60n selling days. Answer the following questions for the sales data shown.
The president of the wholesale distributor is concerned about the possibility of stockouts causing a loss of customer confidence and loyalty and is interested in maintaining safety stock in inventory to prevent potential stockouts.
Find a positive integer smaller than 500 that has a remainder of 3 when divided by 5, a remainder of 6 when divided by 9, and a remainder of 8 when divided by 11.
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