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✓ To 1- . Chapter 9 - Hypothuas Testing Chapter 3 Cenlicence Intervis x + https://www.webassign.net/web/Student/A ... g=autosave question3174675_0 DF Unitedpredse Brut Champagne Part Part (c) Other Which distribution should you use for this problem? Round your answers to two decimal places X-IN ~~ 23.6 7.0 Explain your choice The standard normal distribution should be used because the population standard deviation is known The Student's t-distribution should be used because the sample mean is smaller than 30. The Student's I-disitulian should be used because the sample standard deviation is given. The standard normal distribution should be used because the mean is given Correct! To be able to use the standard normal distribution, the standard deviation of the population must be know. Partaj Construct a 90% confidence interval for the population mean time to complete the lax forms (1) Slate the confidence interval. (Round your answers to two decimal places) ( 1. D (II) Sictch the graph (Round your answers to two decimal places) C.L.= DIR 2 2 i X (Hin Calculate the error bound. (Round your answer to two decimal places) H Type here to search O c 1:17 AM 59°F Cloudy @ 018 Van