You are conducting a test of the claim that the row variableand the column variable are dependent in the followingcontingency table.XY ZA 49 25 32B 39 31 29Give all answers rounded to 2 places after the decimalpoint, if necessary.(a) Enter the expected frequencies below:XYZA(b) What is the chi-square test-statistic for this data?Test Statistic: x²=(c) What is the p-value for this test of independenceP-Value: =(d) What is the correct conclusion of this hypothesis test atthe 0.025 significance level?

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Answered: Give all answers rounded to 2 places…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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In each part, use the information given to calculate the standard error of the mean. (Round your answers to one decimal place.) (a) Mean height for a sample of n = 99 women is x = 63.4 inches, and the standard deviation is s = 2.3 inches. inches (b) Mean systolic blood pressure for a sample of n = 120 men is x = 119, and the standard deviation is s = 8. (c) Mean systolic blood pressure for a sample of n = 360 men is x = 119, and the standard deviation is s = 8.
Give as much information as you can about the P-value of a t test in each of the following situations. (Use technology to calculate the P-value. Round your answers to four decimal places.) USE SALT (a) two-tailed test, df = 7, t = 0.79 (b) upper-tailed test, df = 10, t = -0.70 (c) lower-tailed test, n = 20, t = -2.20 (d) lower-tailed test, n = 20, t = -5.30 (e) two-tailed test, n = 40, t = 1.50
You are conducting a study to see if the average female life expectancy is significantly different from 81. Your sample data (n=17) produce the test statistic t=-2.67. Find the p-value accurate to 4 decimal places.
In each part, use the information given to calculate the standard error of the mean. (Round your answers to one decimal place.) (a) Mean height for a sample of n = 99 women is x = 65.6 inches, and the standard deviation is s = 3.9 inches.inches(b) Mean systolic blood pressure for a sample of n = 120 men is x = 124.5, and the standard deviation is s = 7.(c) Mean systolic blood pressure for a sample of n = 360 men is x = 124.5, and the standard deviation is s = 7.
Mean (Average): 76 Population Standard Deviation, σ 19 Total Numbers, N 45 What is the z-score for a grade of 65? What is the probability of randomly choosing a score that is 65 or more?
q-1
Calculate the correct t-statistics based on the information below. X1 = 200 X2 = 198 n1 = 17 n2 = 17 s1 = 2.45 s2 = 2.35 Let us assume that two groups of students at Tarleton are being compared on their average weights. Do you think the groups are different in terms of weight (measured in pounds)?
You are conducting a study to see if the average female life expectancy is significantly more than 93. Your sample data (n=15) produce the test statistic t=2.33. Find the p-value accurate to 4 decimal places.

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Give all answers rounded to 2 places after the decimal point, if necessary. (a) Enter the expected frequencies below: X Y Z A B (b) What is the chi-square test-statistic for this data? Test Statistic: x² = (c) What is the p-value for this test of independence