I need in an hour pls help Thankyou The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 2.2 minutes, which is the standarddeviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below.E Click on the icon to view the data.a. Identify the null and alternative hypotheses. Choose the correct answer below.Customer waiting timesO A. Ho: o<2.2 minutesHA: O= 2.2 minutesO B. Ho: o22.2 minutesHA: o<2.2 minutesO C. Ho: o=2.2 minutesHA: 0 2.2 minutesCustomer Waiting Times(in minutes)4.3O D. Ho: o =2.2 minutesHA: o<2.2 minutes8.66.87.46.77.36.87.76.56.5b. Compute the test statistic.7.86.76.66.36.96.38.98.612.77.8(Round to two decimal places as needed.)6.57.17.34.37.67.97.98.4c. Find the P-value of the test statistic.7.96.87.66.77.24.97.17.1The P-value of the test statistic is6.97.66.58.97.1(Round to three decimal places as needed.)8.710.38.8d. Does the use of the single line appear to reduce the variation among waiting times?6.67.37.76.54.47.48.96.76.96.3Theresufficient evidence to conclude that the single line reduced the variation among waiting times because Ho isby the hypothesis test.6.26.78.28.16.67.1is notPrintDoneisTextcrunch The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 2.2 minutes, which is the standarddeviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below.Click on the icon to view the data.a. Identify the null and alternative hypotheses. Choose the correct answer below.Customer waiting timesO A. Ho: o<2.2 minutesHA: O=2.2 minutesB. Ho: o2 2.2 minutesHA: o<2.2 minutesO C. Ho: o=2.2 minutesHA: O#2.2 minutesCustomer Waiting Times(in minutes)O D. Ho: o= 2.2 minutesHA o<2.2 minutes8.66.76.84.37.47.36.86.5b. Compute the test statistic.7.86.77.76.66.36.96.56.38.98.612.77.8(Round to two decimal places as needed.)6.57.17.34.38.46.77.67.97.9c. Find the P-value of the test statistic.7.96.87.67.24.96.97.6The P-value of the test statistic is6.57.18.97.1(Round to three decimal places as needed.)8.77.110.38.86.67.37.76.5d. Does the use of the single line appear to reduce the variation among waiting times?4.47.48.96.76.26.96.78.2Theresufficient evidence to conclude that the single line reduced the variation among waiting times because Ho isby the hypothesis test.8.16.36.67.1rejectedPrintDonenot rejected

Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts. In case you require the unanswered parts also, kindly re-post that parts separately. Given hypothesis: H0: σ≥2.2H1: σ<2.2 b) From the sample values, s^2=1.7372 Test statistic: χ2=n-1s2σ2 =60-11.73722.22 =21.18c) df=n-1=60-1=59 p=0.999, from the excel function, =CHISQ.DIST.RT(21.18,59)