Can someone answer then incorrect questions please!

Question 1 Question 1: A simple random sample of 8 employees of a corporation provided the following information. Employee 1 2 3 4 5 6 7 8 Age 25 32 26 40 50 54 22 23 Gender M M M M M F (1a) Determine the point estimate for the average age of all employees. Selected Answer: 34 Question 2 (1b) What is the point estimate for the standard deviation of the age of employees? (at least 2 decimais precision) Selected Answer: 12.57 Question 3 (16) Determine a point estimate for the proportion of all employees who are female. Selected Answer: 365 Question 4 Question 2: Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of (2a) What is the expected value of the sampling distribution of the sample mean? Selected Answer: 5 Question 5 12b) What is the probability that the sample mean will be at least 54? (Use the 2-table) Selected Answer: 0.9772 Question 6 Question 3 There are 500 employees in a firm. 45 are female. A sample of 60 employees is selected randomly. Bal Determine the standard error of the female proportion (Hint: you need to consider the population size. At least 4 decimals precisions. Selected Answer: 0.0603 Question 7 (2) What is the probability that the sample proportion of females is less than 0.557 luse tables Selected Answer: 0.6915 Friday, July 23, 2021 7:06:31 PMCOT