n studying the responses to questions on a multiple-choice test, the following sample data are obtained. Athe a = 0.05 significance level, test the claim thatthe responses occur with the same frequency.Ho The responses to the questions occur with thesame frequency.H₁ The responses to the questions do not occur withhe same frequency.ResponseABCDEObservedFrequency2518122421ExpectedFrequency2020202020OF800४0°00>(O – E)²E1.250.23.20.80.05OT00४b. What is the p-value? Round to four decimalplaces.p-value =४OF४a. What is the x² test-statistic for this data? Roundto four decimal places.x² =

Given that Number of categories = n = 5

Answered: a. What is the x² test-statistic for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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DO it correct and fast. I ll rate. Type answer only and explain well.
Q2: The number of stories in the 10 tallest buildings for two different cities is listed below. Which set of data is better on the average and which set is more variable? 50 34 Houston: 71 64 56 53 55 47 55 52 50 Pittsburgh: 54 40 32 46 44 42 41 40 40
Name: ID: B 14. Is the sample mean, calculated from a random sample, an unbiased estimator of the population mean? Explain.
You are a data scientist investigating a new dataset you just received. After some preliminary analysis, you discover that the dataset has a median of 81.45, a Q3 of 86.71, and an IQR of 10.05. Use this information to create a boxplot diagram. What is the value of the lower fence? Note: 1- Only round your final answer. Round your final answer to two decimal places.
Do men take less time than women to get out of bed in the morning? The 42 men observed averaged 7.6 minutes to get out of bed after the alarm rang. Their standard deviation was 2.2. The 52 women observed averaged 9 minutes and their standard deviation was 2.1 minutes. What can be concluded at the a = :0.01 %3D level of significance?
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly larger than 72% at a level of significance of a = 0.10. According to your sample, 41 out of 56 potential voters prefer the Democratic candidate.
A. Which one is greater the mean or the median? Which one is better measured of the center the median or the mean? Show work B. Find the mode C. Find the median D. Find the mean (even though we must round to the one decimal place to make computations easy round you’re mean to the nearest minute)
A sample of 900 computer chips revealed that 46 % of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 50 % of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. Find the value of the test statistic. Round your answer to two decimal places. Answer Tables Keypad
INSTRUCTION: Perform an appropriate statistical test using the dataset (Sheet name: Cholesterol) if a researcher would like to determine if there is a significant difference in the "Cholesterol" level before ("Pre") and after ("Post") the treatment or therapy? Dataset for this can be retrieved on the given Excel. 1. What is the computed p-value for the given data on the "Cholesterol" level before ("Pre") and after ("Post") the treatment or therapy? Round it off to two decimal places. Then, answer (YES or NO) if there is a significant difference in the "Cholesterol" level before ("Pre") and after ("Post") the treatment or therapy? 2. What is the computed Mean of "Post" on the given data for Cholesterol? Round it off to two decimal places. 3. What is the computed Standard Deviation of "Pre" on the given data for Cholesterol? Round it off to two decimal places.
A certain drug is used to treat asthma. In a clinical trial of the drug, 27 of 279 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 9% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.01 significance level to complete parts (a) through (e) below. 1-PropZTest prop <0.09. z = 0.395382781 p=0.6537197926 p= 0.0967741935 =279
Im not quite sure how to calculate this, please help.
The five-number summary for a set of data is given below. Min Q1 Median Q3 Max 80 81 85 92 95 What is the interquartile range of the set of data?

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a. What is the x² test-statistic for this data? Round to four decimal places. x²: = b. What is the p-value? Round to four decimal places. p-value =