tou want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 328 carspass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a 010a. Complete the rest of the table by filling in the expected frequencies:Frequency of Cars in Each LaneOutcome Frequency Expected FrequencyLane 1 94Lane 2 63Lane 3 101Lane 4 70b. What is the correct statistical test to use?Select an answer vc. What are the null and alternative hypotheses?Ho:The traffic and lanes are independent.The distribution of traffic is not uniform.The traffic and lanes are dependent.The distribution of traffic is uniform.

a.The total sample size is given as 328. The observed frequencies are given. There are total four…

Answered: tou want to see if it makes a…

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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The number of credits being taken by a sample of 13 full-time college students are listed below. Find the mean, median, and mode of the data, if possible. If any measure cannot be found or does not represent the center of the data, explain why. 5 5885 4 44 7 0 O A. The mode(s) is/are (Type an integer or decimal rounded to one decimal place as needed. Use a comma to separate answers as needed.) O B. The data set does not have a mode. Does (Do) the mode(s) represent the center of the data? O A. The mode(s) represent(s) the center. O B. The mode(s) does (do) not represent the center because it (they) is (are) not a data value. O C. The data set does not have a mode. D. The mode(s) does (do) not represent the center because it (one) is the smallest data value. O E. The mode(s) does (do) not represent the center because it (one) is the largest data value.
A professor has twelve students in her class. Her class took a test with the following results: 73, 55, 72, 98, 77, 93, 58, 78, 79, 95, 96, 86 a. What was the mean grade on the test? (Simplify your answer and round to one decimal place.) b. What was the median grade on the test? (Simplify your answer and round to one decimal place.) C c. What was the mode? If there are no modes, enter “NONE”. Otherwise, enter the mode (or modes, separated by a comma). Mode(s) = $ Mean = 5 4 I Median = JO D f V % 5 t 6.0 b 6 Oll y h & 7 n u - * 00 8 m ( 9 k S O n L O A р alt 7 + [ // ctri
The following refer to the following data set: 75 95 72 67 39 98 28 44 48 72 53 What is the mean (¯xx¯) of this data set?mean = 62.8What is the median of this data set?median = 67What is the mode of this data set?mode = 72
A sample of prices for memory cards is given below: 244 194 172 184 288 210 244 234 Find the mode and the mean for this sample. If there is not mode, enter "NONE". Sample Mode Sample Mean
The cost of you electricity bill for the last five months are as follows: $54, $36, $80, $65, and $44 a) What is the median cost of electricity b) Find the mean cost of electricity
A student’s test grades are: 85, 75, 100, 90, and 90. On the two questions below, round to the nearest whole number when relevant. Show calculations and clearly report answers to each of the two questions below. a. What is the mean, or average, test grade for this student? b. What is the median test grade?
Fifty randomly selected car salespersons were asked the number of cars they generally sell in one week. Nine people answered that they generally sell three cars; thirteen generally sell four cars; ten generally sell five cars; seven generally sell six cars; eleven generally sell seven cars. Complete the table. Data Value (# cars) Frequency Relative Frequency Cumulative Relative Frequency 3 4 6. 7
The measure of location which is highly affected by outllers Is O A. Mean O B. Interquartile range OC Range OD. Median
A researcher asks ten (10) people how many times they have been to a movie theatre in the past year. She records the following frequencies: 7, 4, 5, 1, 9, 8, 12, 11, 5, 2 Calculate 1. mode 2. median 3.mean 4.range
The mean of a set of 13 numbers is 16. If a number is removed from the dataset, the resulting mean is 12.5. The number that was removed is: A. 58 B. 59 C. 57 D. 60
Calculate the appropriate measure of association for this study. Round to the nearest hundredth. In a recent case-control study, investigators enrolled 300 adults with heart disease and 300 healthy adults. During interviews with the participants, the investigators determined participants' use of multivitamins in childhood, which was dichotomized into yes or no. The 2x2 table below shows the frequencies of heart disease case and control status by multivitamin use during childhood. Heart Disease Multivitamin Use Yes No Total Yes 125 175 300 No 135 165 300 Total 260 340 600 QUESTION 4 What is the correct interpretation of the measure of association you calculated in the previous question? (Please consider your calculated number in place of "X" in the answers.) The ODDS of heart disease among people who took multivitamins during childhood is X times the odds of heart disease among people who did not take multivitamins during childhood. The ODDS of multivitamin use during childhood among…

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