Karla tells you she is happy to be a patient at the UMN SOD….

Karla tells you she is happy to be a patient at the UMN SOD. It was challenging for her to get an appointment scheduled because the SOD was open at a limited capacity due to COVID-19. Additionally, scheduling Metro Mobility was a challenge too. Refer to MI OARS (open question, affirmation, reflection, and summary); write ONE AFFIRMATION statement and ONE REFLECTION statement in response to what she has told you.    Affirmation: Reflection:

For years, the restaurant Tokos’ Tacos had outdoor service a…

For years, the restaurant Tokos’ Tacos had outdoor service at picnic tables.  During that time, the average tip left by customers was $3.20.  Last year, the restaurant expanded and also had indoor seating.  The shop owner collected a sample of 55 bills from last year. The mean tip amount from this new sample was $3.72 with a standard deviation of $2.84. Using a 10% significance level, perform a hypothesis test to see if the mean tip amount increased after the restaurant expanded. a) On your scrap paper, write the hypotheses using appropriate notation. b) Calculate the test statistic, using the formula.  (Type it in the answer box, but show all work on scrap paper.) c)  Find the p-value using StatKey.  (Type it in the answer box.) d)  Write out the conclusion in the context of the problem.  (Type it in the answer box.)