# Question: The density of the earth relative to the density of

The density of the earth relative to the density of water is known to be 5.517 g/cm3. Henry Cavendish, an English chemist and physicist (1731–1810), was the first scientist to accurately measure the density of the earth. Following are 29 measurements taken by Cavendish in 1798 using a torsion balance.

a. What evidence do you have that the assumption of normality is reasonable? Explain.

b. Is the mean of Cavendish’s data significantly less than today’s recognized standard? Use a 0.05 level of significance.

a. What evidence do you have that the assumption of normality is reasonable? Explain.

b. Is the mean of Cavendish’s data significantly less than today’s recognized standard? Use a 0.05 level of significance.

**View Solution:**## Answer to relevant Questions

Find these critical values using Table 6 in Appendix B: a. t(25, 0.05) b. t(10, 0.10) c. t(15, 0.01) d. t(21, 0.025) How important is the assumption "The sampled population is normally distributed" to the use of Student's t-distribution? Using a computer, simulate drawing 100 samples of size 10 from each of three different types of ...Find a, the area of one tail, and the confidence coefficients of z that are used with each of the following levels of confidence. a. 1 - a = 0.80 b. 1 - a = 0.98 c. 1 - a = 0.75 Just one serving a month of kale or collard greens or more than two servings of carrots a week can reduce the risk of glaucoma by more than 60%, according to a UCLA study of 1000 women. Using a 90% confidence interval for ...The “rule of thumb” stated on page 434 indicated that we would expect the sampling distribution of p_ to be approximately normal when “n = 20 and both np and nq are greater than 5.”What happens when these guidelines ...Post your question