Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Please answer the following question using STAT: 1. In this exercise, we are conducting many hypothesis tests to test a claim. Assume that the null
Please answer the following question using STAT:
1.
In this exercise, we are conducting many hypothesis tests to test a claim. Assume that the null hypothesis is true. If 140 tests are conducted using a significance level of 5 % , approximately how many of the tests will incorrectly find significance? i of the tests will find significance.Flying Home for the Holidays, On Time The dataset DecemberFlights contains the difference between actual and scheduled arrival time from 1 000 randomly sampled December flights for two of the major North American airlines, Delta Air Lines and United Air Lines. A negative difference indicates a flight arrived early. Suppose that we are only interested in the proportion of flights arriving more than 30 minutes after the scheduled time. Of the 1000 Delta flights, 67 arrived more than 30 minutes late, and of the 1000 United flights, 160 arrived more than 30 minutes late. We are testing to see if this provides evidence to conclude that the proportion of flights that are over 30 minutes late is different between flying United or Delta. Let group I be Delta flights and group 2 be United flights. Click here for the dataset associated with this question. Click here to access Stotkey. Your answer is correct. (e) State the null and alternative hypotheses. # P2 eTextbook and Media HintV Your answer is correct. [b) What statistic will be recorded for each of the simulated samples to create the randomization distribution? PI # P2 Statistic: ~| ~ ~ eTextbook and Media Hint X Your answer is incorrect. (c) What is the value of that statistic for the observed sample? Round your answer to three decimal places. observed statistic 1 -5.750 eTextbook and Media Assistance Used Hint Assistance UsedStep by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started