What is the test stat for testing the mean is less than 200 if the sample mean is 200.154 the sample standard deviation s is 1.1 and the sample size is 100 Answer:Suppose a sample of 100 customers buys an average of 5.5 items with a standard deviation of 6.5. What is the standard error of the sample mean? Be careful with this question tick all the correct options a. Increasing the sample size would not change the standard error O b. Increasing the sample size would increase the standard error O c. The standard error of the sample mean is 3.2500 O d. The standard error of the sample mean is 9.2500 O e. Increasing the sample size would decrease the standard errorWhat is the standard error of the sample proportion of people that like a product if you have a sample of 7300 people and 3600 like the product? O a. 0.3700 O b. 7.3000 O c. None of the other choices is correct O d. 0.3600