answer all final answer only

Provide the final answer only 1. The first quartile and the third quartile of a distribution are 30 and 35 respectively with a median of 20. What is the shape of the distribution? 2. The ages of five management members of a company are 58, 56, 69, 70 and 52. What is the mean age? 3. There are 6 experts sitting around a circular table for a meeting. What is the number of permutations for their seating arrangement? 4. A systematic sampling method was used to select 100 samples from a population of 50,000 students. What was the position of the second student selected if the first sample was 5th on the sampling frame after a simple random sampling? 5. A regression analysis between sales (Y in Ghc1000) and advertising (X in Cedis) resulted in the following equation 8 = 30,000 + 4X. The above equation implies that an increase of Ghel in advertising is associated with what increase in sales? 6. A population has a variance of 2500. A random sample of 100 items from this population is selected. The sample mean is determined to be 600. At 95% confidence, what is the margin of error? 7. A population consists of 500 elements. We want to draw a simple random sample of 50 elements from this population. What is the probability of an element being selected on the first selection? 8. In the textile industry, a manufacturer is interested in the number of blemishes or flaws occurring in each 100 feet of material. Which probability distribution should be applied to this situation? 9. From a group of six people, two individuals are to be selected at random. How many possible selections are there? 10. The interquartile range is used as a measure of variability to overcome what difficulty of the range? Page 2 of 5