Question 5 For a given sample size, the standard error of the sample proportion gets larger as O p approaches zero O p approaches 0.5 O p approaches one Q none of the above /i\\ Moving to another question will save this response. Question 6 of 12 QUEStlon 6 2 points Save Answer PintPant, a paint company is looking to ensure that every customer gets a fair amount of paint when they buy PintPant's products. PintPant decided to test 150 cans they produced on the day as a sample for the day's manufacturing and found that the average amount of paint in each tin was 3.99 litres with a standard deviation of 0.2934 litres. Determine the number of observations needed to be 96% condent that the estimate of the average weight is within 0.03 litres of the overall mean volume. Note: Assume that the pilot standard deviation is a good estimate ofthe population standar deviation, that an appropriate value from the Ztable can be used, and that hand calculations are used to find the answer (i.e. do not use Kaddstat). @ Moving to another question will save this response. Question 7 of 12 Question 7 2 points Save Answer The average and standard deviation for the running time (in minutes) of movies released over a twelve month period were 109 and 28 respectively. If a sample of 1 11 movies were chosen, find the sample average value above which only 20% of sample averages would lie. Give your answer to the nearest whole number of minutes. A Moving to another question will save this response. > Question 8 2 points Save Answer A study of 726 high school students found that 441 of them enjoyed reading books. Use the survey results to estimate, with 90% confidence the proportion of high school students who enjoy reading books. Report the upper bound of the interval only, giving your answer as a percentage to two decimal places