A researcher believes that men are more likely to enjoy horror movies than women. To test this he randomly selects 25 men and 25 women and has them watch a randomly selected horror movie. He then asks each participant if he/she enjoyed the movie. Observed frequencies are shown in the table below. Observed Frequencies Yes No R Totals Men 20 5 25 Women 10 15 25 C Totals 30 20 50 Perform a Chi-square Test of Independence (show all 7 steps).

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A: The test statistic value is 1.90.

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A:

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A: Given: ∫01e-x2dx To find: Evaluate the integral using Simpson's 13 and 38 rule with 6 decimal places…

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A: Solution: The given data is

Q: 25. Using Newton's method of Interpolation, estimate from the following data, the number of…

A:

Q: Give the degrees of freedom for the chi-square test based on the two-way table. Yes No Total Group 1…

A: The given two-way table is, Here, the no.of rows is, r = 3 The no.of columns is, c = 2

Q: 26. Stephens, Atkins, and Kingston (2009) conducted a research study demonstrating that swearing can…

A: Assuming, mu1 and mu2 to be the average time hand is kept in water with and without swearing…

Q: The chi-square statistic for this table is 3.95 with a sample size of 669. Calculate Cramer's V,…

A: Given, χ2-statistics=3.95sample size (N)=669 The required Cramer's V is obtained as-…

Q: 28. A Chi-Square test for independence was done to see whether the type of salad dressing people…

A: We have given that  P-value = 0.02 And level of significance =alpha = 0.05

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A: Control limits for x-bar chart: UCL=x¯¯+3R¯LCL=x¯¯-3R¯CL=x¯¯ Consider, Hour x¯ R 1 3.35 0.76…

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A: Introduction - Chi-square test  χ2=∑Oi-Ei2Eiwhere , Oi=observed frequency Ei=Expected frequency…

Q: Find the P value in a test of the claim that a population proportion is not equal to 0.73, given…

A: Givenclaim thatpopualation proprotion is not equal to 0.73i.e., p≠0.73The test is two tailed…

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A:

Q: With Ha : H + 122 1.578. Find the p- you obtain a test statistic of z = value accurate to 4 decimal…

A: P(Z < -1.578 ) = 0.0573   [using Excel function NORM.S.DIST(-1.578) or Normal table ]

Q: With Ha : H 162 - 3.184. Find the p- you obtain a test statistic of z = value accurate to 4 decimal…

A: Given,   Alternative hypothesis is,   Test statistic: z  = -3.184   The objective is to find…

Q: Which of the following is not a characteristic of the t test? Choose the correct answer below.

A: Student t-test: Shape of a student’s t distribution is bell shaped curve with mean zero and standard…

Q: Find the critical value Fo for a left-tailed test using a = 0.05, degrees of freedom in the…

A: Here alpha = 0.05 DF1=6 DF2 = 16

Q: Stephens, Atkins, and Kingston (2009) conducted a research study demonstrating that swearing can…

A: In order to determine whether swearing helped with pain tolerance, conduct a two mean comparison…

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A:

Q: State your conclusion to the hypothesis tést. A medical researcher is interested in determining if…

A: The test statistic fir Chi square test of independence is given by 3.47 Level of significance = 0.05

Q: As a result, Cohen's d is a statistic that measures the severity of the consequence, which it cannot…

A: Cohen's d is a measure of the magnitude of effect and cannot be negative. Treat you result as the…

Q: medical researcher says that ould be required to be vaccinated. In a random sample of 300 adults in…

A: We have given that  Sample size n= 300 Population proportion p =76%=0.76 Sample proportion p^=…

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Q: Determine the p value for each Chi-square test, reporting to 4 decimal places: A. Test statistic:…

A: 1) Test statistic = 29.321, n = 16 , right tail test p-value = 0.0146 (From Excel…

Q: A two-tailed test, computed t-value = 1.845, df = 10 O 0.025 > 1/2 p > 0.05 0.05 > p> 0.10 O 0.05 >…

A: For the given data Select the correct choice

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A: We have given that, Numerator degrees of freedom (d₁) = 9 Denominator degrees of freedom (d₂)=…

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A: Given data, Mississippi Oregon Arizona New Mexico Kansas 41 41 43 48 43 35 42 47 39 48 41…

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A: Given that    Democratic Republican Total East 56 39 95 Center 51 58 109 West 40 62 102…

Q: Give the degrees of freedom for the chi-square test based on the two-way table. Yes No Total…

A: From the provided information, Number of rows (r) = 3 Number of columns (c) = 2

Q: 6. A population of N = 15 scores has EX = 120. What is the population mean? %3D %3D

A: Given,

Q: ug in ribution of the number of accidents in 150 weeks. Number of Accidents 0 |Observed frequency 1…

A: Frequency distribution of the number of accidents  Number of Accidents Observed Frequency 0 50…

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A: Given ,                Males      Females        TotalRegistered    40           30…

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Q: Members of the city council want to know if a majority of city residents supports a 1% increase in…

A:

Q: Read this sentence from the results section of a recent publication regarding the perception of…

A: t(14533) = 16.8 This implies that degrees of freedom = n-1 = 14533

Q: The table below shows a stem-and-leaf diagr Stems Leaves 6. 56 1334555 8 112235 9. 124 10 1 How many…

A: Here the stem and leaf diagram is given. Let us generate original data from the stem and leaf plot.…

Q: A sports fan conducted a test to investigate whether male high school athletes are equally divided…

A: The provided information are: Number of categories = 5 Chi-square test statistic = 10.65

Q: A researcher reports the results of a single-sample t-test as t(25) = 1.80. The numerical degrees of…

A: Given, A single-sample t-test as t(25) = 1.80Degrees of freedom (d.f)=n-1=25

Q: Silects the dätă în distance from home to school (in miles) and number of clubs joined for a sample…

A: Since you have asked multiple questions,we will solve the first question for you.If you want any…

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Q: The toll plaza on Route 1 in Dover has four tollbooths open to all vehicles. Ms. Timlin conducted a…

A: We know if P-value is less than significance level α then we reject null hypothesis at given…

Q: A graduate-level computer science course only gives the grades of A, B, or C. The department has…

A:

Q: A sports fan conducted a test to investigate whether male high school athletes are equally divided…

A: Given, A sports fan conducted a test to investigate whether male high school athletes are equally…

Q: 6. A machine used by a company in making its canned fruit cocktails fills the cans with bits of…

A: For the given data Perform Chi square test

Q: A teacher gives a third grade class of n = 16 a vocabulary test at the beginning of the school year.…

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Q: Each car in a random sample of 170 cars sold in 2010 at a large car dealership was classified by…

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Q: A sample of non-English majors at a selected college was used in a study to see if the student…

A: The random variable score follows normal distribution. There are two independent samples which are…

Q: The following data shows the number of different type of students that have received distinction or…

A: The provided contingency table is:   Grade Course Distinction Pass Fail…

Q: e 17-2. In a random sample of 400 persons from a large population, 120 are females. Can it be said…

A: Introduction - Null distribution Test statistic z=p^-p0p01-p0n where ,  p0=population proportion…

Q: For a sign test for paired data, it is given that np = 9, nq= 8. The method that we use for testing…

A: We have given that  For a sign rank test, it is given that np^ = 9 and nq^ = 8. When np^ > 5 and…