Please show work step by step and round final answers to 4 decimals. Thank you.
Please show work step by step and round final answers to 4 decimals. Thank you. 15-16....
Please show all work step by step in detail. thank you! round final answers to 4 decimal places. 19-20. Data Set “IQ and Lead” lists full IQ scores for a random sample of subjects with high lead levels in their blood. The statistics are summarized below: Low Blood Lead Level n = 78, * = 92.88462, s = 15.34451 a) Use a 0.05 significance level to test the claim that the mean IQ score of people High Blood Lead Level...
Please show work step by step please. round final answer to 4 decimals. thank you. 17-18. The following data are heights (in.) of fathers and their first sons from the data “Family Heights”, from a journal kept by Francis Galton: n = 10, Zdus = 0.02, Saijs = 1.86. Use a 0.05 significance level to test the claim that there is no difference in heights between fathers and their first sons.
Please show all work step by step and round answers to 4 decimals. thank you! 6. The table below shows the soft drinks preferences of people in three age groups. If one of the 255 subjects is randomly selected, find the probability that the person drinks cola given the person is over 40 years of age. P(drinks cola| over 40 years of age) = ? Cola Root Beer Lemon-lime Under 21 years of age 40 25 20 Between 21 and...