Layout References Mallings Review View T ie De AA EE 1 A.P.A. EEEE a ADE Maltodele AaBbccde Abcde AaBb Heading Title BINOMIAL PROBABILITIES Big Box Store (HBS) has an annual rate of 4% of all sales being returned. In a recent sample of thirty randomly selected sales the number of returns was five. BBS is concerned about the event, and your advice is solicited. (1) (5 points) How many returns are expected in a random sample of 30 sales? What is the standard deviation for this sample? How would you explain the number of expected returns to BBS and not use a decimal? Show any work and type your answer below. The expected number of rebums for a sample of 30 is 5. The standard deviation-np-(30) 5) - 150^0.5-12.24The rumber of expected returns would equal (3) (5 points) How many ways can there be returns in a sample of 30 sales? Type the answer and my work below. FOR 4-9, OPEN THE EXCEL EXAM TWO FILE. THE SPREADSHEET FOR THIS PROBLEM IS FOUND ON SHEET TWO. COMPLETE AND SAVE YOUR WORK IN EXCEL AND ENTER THE SOLUTIONS BELOW. (4 (2.5 points) What is the probability that a random sample of 30 sales has 5 returns? Type the answer and any work below. (5) (2.5 points) What is the probability that a random sample of 30 sales has at least 5 rebus? Type the answer and my work below (6) (2.5points) What is the probability that a random sample of 30 sales has 5 or fewer returns? Type the answer and any work below. United States Focus MacBook Air % (7) (2.5 points) What is the probability that a random sample of 30 sales has less than four returns? Type the answer and any work below. (8) (2.5 points) What is the probability that the number of returns is not equal to 4 in a random sample of 30 sales? Type the answer and any work below. (9) (2.5 points) What is the probability that a random sample of 30 sales has more than three returns? Type the answer and any work below. a Focu MacBook Air Layout References Mallings Review View T ie De AA EE 1 A.P.A. EEEE a ADE Maltodele AaBbccde Abcde AaBb Heading Title BINOMIAL PROBABILITIES Big Box Store (HBS) has an annual rate of 4% of all sales being returned. In a recent sample of thirty randomly selected sales the number of returns was five. BBS is concerned about the event, and your advice is solicited. (1) (5 points) How many returns are expected in a random sample of 30 sales? What is the standard deviation for this sample? How would you explain the number of expected returns to BBS and not use a decimal? Show any work and type your answer below. The expected number of rebums for a sample of 30 is 5. The standard deviation-np-(30) 5) - 150^0.5-12.24The rumber of expected returns would equal (3) (5 points) How many ways can there be returns in a sample of 30 sales? Type the answer and my work below. FOR 4-9, OPEN THE EXCEL EXAM TWO FILE. THE SPREADSHEET FOR THIS PROBLEM IS FOUND ON SHEET TWO. COMPLETE AND SAVE YOUR WORK IN EXCEL AND ENTER THE SOLUTIONS BELOW. (4 (2.5 points) What is the probability that a random sample of 30 sales has 5 returns? Type the answer and any work below. (5) (2.5 points) What is the probability that a random sample of 30 sales has at least 5 rebus? Type the answer and my work below (6) (2.5points) What is the probability that a random sample of 30 sales has 5 or fewer returns? Type the answer and any work below. United States Focus MacBook Air % (7) (2.5 points) What is the probability that a random sample of 30 sales has less than four returns? Type the answer and any work below. (8) (2.5 points) What is the probability that the number of returns is not equal to 4 in a random sample of 30 sales? Type the answer and any work below. (9) (2.5 points) What is the probability that a random sample of 30 sales has more than three returns? Type the answer and any work below. a Focu MacBook Air
