Severity: Warning
Message: fopen(/home/answnniz/solutionspile.com/system/sessions/ci_session1256ab4b1370e08d26d578f30c1e7fa5b4387404): failed to open stream: Disk quota exceeded
Filename: drivers/Session_files_driver.php
Line Number: 176
Backtrace:
File: /home/answnniz/solutionspile.com/index.php
Line: 367
Function: require_once
Severity: Warning
Message: session_start(): Failed to read session data: user (path: /home/answnniz/solutionspile.com/system/sessions)
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/answnniz/solutionspile.com/index.php
Line: 367
Function: require_once
3) A restaurant claims that the standard deviation of the lengths of serving times is 3 minutes. A random sample of 27 serving times has a standard deviation of 3.9 minutes. At alpha equal 0.05, is there enough evidence to reject the restaurant's claim?A) Write the claim mathematically and state the null and alternative hypotheses. B) Determine whether the hypothesis test is left-tailed, right-tailed, or two tailed and whether to use a z-test, a t-test, or a chi-square test. Explain your reasoning.C) Find the critical value(s), draw a sketch identifying the rejection region(s).D) Find the appropriate standardized test statistic.E) Decide whether to reject or fail to reject the null hypothesis.F) Interpret the decision in the context of the original claim.