Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion.A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists thosecents portions categorized according to the indicated values. Use a 0.025 significance level to test the claim that thefour categories are equally likely. The person expected that many checks for whole dollar amounts would result in adisproportionately high frequency for the first category, but do the results support that expectation?Cents portion of check25-4920NumberClick here to view the chi-square distribution table.0-2434The test statistic is(Round to three decimal places as needed.)The critical value is(Round to three decimal places as needed.)State the conclusion.Ho. Thereequally likely. The resultsdisproportionately high.50-7421...75-9925sufficient evidence to warrant rejection of the claim that the four categories areto support the expectation that the frequency for the first category is

the null and alternative hypothesis H0 : p1=p2=p3=p4 = 1/4 = 0.25 Ha : At least one of proportion…

Answered: The test statistic is (Round to three…

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 following is a set of data from a sample of n=6. 7 4 9 7 3 16 a. Compute the first quartile (Q1), the third quartile (Q3), and the interquartile range. b. List the five-number summary. c. Construct a boxplot and describe the shape.
A researcher is interested in investigating whether living situation and pet ownership are dependent. The table below shows the results of a survey. Frequencies of Living Situation and Pet Family Single Couple Dog 98 81 81 Cat 104 76 73 Various 50 51 59 None 67 42 35 What can be concluded at the a = 0.05 significance level? %3D a. What is the correct statistical test to use? O Paired t-test O Independence O Goodness-of-Fit O Homogeneity b. What are the null and alternative hypotheses? Но: O Pet ownership and living situation are independent. O Pet ownership and living situation are dependent. O The distribution of pets is the same for each living situation. O The distribution of pets is not the same for each living situation. H1: O The distribution of pets is the same for each living situation. O Pet ownership and living situation are independent. O Pet ownership and living situation are dependent. O The distribution of pets is not the same for each living situation. (Please show your…
Q.No.1. Differentiate between inferential and descriptive Statistics with example. Find the missing entries in the following frequency distributio Class Limit Frequency Relative Frequency Cumulative Frequency Cumulative Percentage Frequency 10 to - - - - - - to - - - 5 - - to - - 0.32 21 - - to - - - - - - to - 8 - 43 - - to 69 - - - - The following scores represent the final examination grade for an elementary statistics course:- 23 60 79 32 57 74 52 70 82 36 80 77 81 95 41 65 92 85 55 76 52 10 64 75 78 25 80 98 81 67 41 71 83 54 64 72 88 62 74 43 60 78 89 76 84 48 84 90 15 79 34 67 17 82 69 74 63 80 85 61 Make a grouped frequency distribution of this data and calculate…
Q6. If the test statistic for a left-tailed test is z = –1.72, then P-value is 0.9518.a. Trueb. False
* Q1) b- for the following data, (19, 32, 26, 71, 88, 45, 59), the Harmonic Mean (H) is 37.4406 O 37.6044 O 37.4064 O 37.0644 O none of all above o Q1) c The probability of twice withdraw the same ball from a box contains 25 sile is and 9 balls are black is
Dr.Blume has trained observers to use frequency recording to record the behavior of 12 schizophrenic clients. According to the analysis of the data κ = 0 . 47, do you think the observers are sufficiently trained to allow Dr. Blume to proceed with the research?
The following histograms represent the heights, measured to the nearest cm, of 14 women and 13 men. Women's heights 3- 2- 1 150 155 160 165 170 175 180 185 190 Height (cm) Men's heights 2 1 0+ 150 155 160 165 170 175 180 185 190 Height (cm) Choose the two options from the list below that are true. Select one or more: Each of the intervals with the lowest frequency in the women's heights dataset contains a smaller number of data values than one of the intervals with the lowest frequency in the men's heights dataset. The histograms are divided into six intervals for the women's heights dataset and eight for the men's heights dataset. The histogram of the women's heights dataset has a greater number of intervals containing two values than the histogram of the men's heights dataset. Both histograms are right-skewed. O The range of the women's heights dataset is greater than the range of the men's heights dataset. Aouan ba Aouan ba
Parts e and f
You are conducting a Goodness of Fit hypothesis test for the claim that the 4 categories occur with the following frequencies: H0 : pA=0.3; pB=0.2; pC=0.2; pD=0.3 Give all answers as decimals rounded to 3 places after the decimal point, if necessary. Complete the table: Category ObservedFrequency ExpectedFrequency A 30 Correct B 25 Correct C 20 Correct D 34 Correct What is the chi-square test-statistic for this data? Test Statistic: χ2= Correct For a significance of level alpha = 0.01, what is the chi-square critical value? Critical Value: χ2= Incorrect What would be the decision of this hypothesis test? Fail to reject H0 Reject H0 Correct Remember to round all answers to 3 places after the decimal point, if necessary.
The following 10 values represented in the frequency table are the race finish times in hours for a randomly selected group of participants in an extreme 10-kilometre race (a 10k race with obstacles). Which of the following is closest to the mean of the data set? Hours f 0.9 1 1 1.1 1.2 1 1.3 1.4 1.5 N = 10 O 1.5 hours O 1.37 hours O 1 hours O 1.2 hours 21

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