In a pharmaceutical manufacturing facility, tablets are prod…

In a pharmaceutical manufacturing facility, tablets are produced to contain an average weight of 500 mg with minimal variation to ensure consistent dosage. However, due to slight inconsistencies in the production process, the weight of tablets is expected to follow a normal distribution. To estimate the true mean weight of the tablets, five independent samples are selected from different batches on separate days and weighed. Which statistical inference procedure should be performed with the resulting data?

Sales representatives at a large local logistics company rec…

Sales representatives at a large local logistics company receive commission pay each month in addition to their monthly base pay. A random sample of 65 sales representatives at this company is selected. The sample mean monthly commission pay was $3,451 and the standard deviation was $289. The 90% confidence interval estimate for the true mean monthly commission pay for sales representatives at this logistics company is between $[a] (lower bound) and $[b] (upper bound). Round your answer to two decimal places.

Jasper Cadua is the head of a company that produces computer…

Jasper Cadua is the head of a company that produces computer software for production scheduling. The firm is small and presently does not generate enough volume to justify hiring a sales force. Which of the following is the firm likely to use in order to maintain contact with the firms using its products?