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1. Which of the following is not a primary function of management? a. Planning b. Organizing c. Leading d. Marketing Suppose you are conducting a hypothesis test for the population mean, , using a sample of size n from a normally distributed population with unknown population standard deviation . You want to test the null hypothesis HO:=100 against the alternative hypothesis Ha:>100 at a 5% significance level. Which of the following z-test statistics should you use for this hypothesis test? A) z=x100 B) z=nx100 C) z=nsx100 D) z=sx100 A manufacturer produces light bulbs, and the lifespan of these bulbs follows an exponential distribution with an unknown mean lifespan. You randomly select 20 bulbs from a batch and record their lifespans. You want to estimate the mean lifespan of these bulbs along with a 95% confidence interval. Which of the following methods should you use to calculate the confidence interval? A) Z-test for proportions B) Z-test for the mean C) T-test for the mean D) Chi-squared test for independence Based on this mind map, here are three questions related to Operation Management: 1. Quality Management: How can Total Quality Management (TQM) principles be applied to improve product quality in a manufacturing setting? 2. Challenges: In what ways can Operation Management strategies address the challenges posed by globalization and technological advances? 3. Strategies: How does the concept of Lean Management contribute to achieving efficiency in operations, and what are its key principles