4. Use a 0.05 significance level to test the claim that gender and left-handedness areindependent.MaleFemaleLeft-handed83184Right-handed1716

Given that Use a 0.05 significance level to test the claim that gender and left-handedness are…

Answered: 4. Use a 0.05 significance level to…

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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14) n gall up poll of 1125 adults, it was found that 47% fly never or rarely. Use a 5% significance level to test that the percentage of adults who fly never or rarely is 50%. (use p-value approach) a. Claim b. Ho H1 c. P-value d. Reject Ho Do not reject Ho e. Write a statement about the claim
Astudy was conducted to determine the proportion of people who dream in black and white instead of color. Among 317 people over the age of 55, 63 dream in black and white, and among 300 people under the age of 25, 17 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dreamn tackand white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and altenative hypotheses for the hypothesis test? OA. Ho P =P2 H, P P2 O B. Ho P1 SP2 H,: P, #P2 O C. Ho P1 #P2 H, P, = P2 O D. H, P1 =P2 H P P2 O E. H, P1 =P2 H,: P,
Statistical discrimination is: a preconceived bias, not based on reason or experience, against a group. O the use of observations about the average characteristics of a group to make inferences about an individual member of the group. a feeling of inferiority arising from membership in a small group. O judgments shaped by the unconscious attribution of particular qualities to specific groups.
The Open Syllabus Project What statistical analysis could be used to determine of the mean percentage of psychology readings assigned in the Midwest was significantly different than in all of the United States? Single-sample t-test In which of the following four categories does this situation fall? a. only scale variables b. nominal independent variables, scale dependent variable c. only nominal variables d. any ordinal variables (that cannot be treated as a nominal)
Among 5,000 items of randomly selected baggage handled by American Airlines, 20 were lost. Among 4,000 items of randomly selected baggage handled by Delta Airlines, 18 were lost. Use a 0.01 significance level to test the claim that both airlines lose the same proportion of baggage. a. Define the parameters A. p 1 equals The proportion of baggage carried by American that arrived on-time p 2 equals The proportion of baggage carried by Delta that arrived on-time B. p 1 equals The proportion of bags selected from American Airlines p 2 equals The proportion of bags selected from Delta Airlines C. p 1 equals The proportion of all baggage lost by American Airlines p 2 equals The proportion of all baggage lost by Delta Airlines D. mu 1 equals The mean number of bags lost by American airlines mu 2 equals The mean number of bags lost by Delta airlines b. State the null and…
Use a chi-square test to determine if ceremonial ranking and pottery type are independent at the 0.05 level of significance.
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. 88 11 11 8 9 77777 7 10 TMV UIG TIHVUG. VGIGLIUIG COITGGL GITVIGG VGIVW aiIU, II TIGL655aiy, mI MUIG QISWGI VUX LU Compitic yoUr GilviG. 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 (one) is the largest data value. O C. The mode(s) does (do) not represent the center because it (one) is the smallest data value. O D. The mode(s) does (do) not represent the center because it (they) is (are) not a data value. O E. The data set does not have a mode.
= Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 43 of the 49 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 92 of the 109 subjects developed rhinovirus infections. Use a 0.05 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? OA. Ho: P₁ P2 H₁: P₁ = P2 O D. Ho: P₁ P2 H₁: P₁ P2 Identify the test statistic. Z= (Round to two decimal places as needed.) Identify the P-value. OB. Ho: P₁ P2 H₁: P₁ P2 ? O E. Ho: P₁ P2 H₁: P₁ P2 P-value= (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is the significance level of a =…
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Every year during home football games the Carroll College fans do push-up contests to see how many they can do. Suppose that a curious stats student in the stands kept track of the number of push-ups completed for several students of both genders. Males 31 31 24 18 30 16 28 13 26 23 Females 16 11 10 1 26 26 6 9 16 32 Consider the hypothesis that males in this contest can do more pushups than females. Use an significance level to test the claim. The test statistic is Construct a 99% confidence interval for the mean of the differences between males and females.
The accompanying table shows results of challenged referee calls in a major tennis tournament. Use a 0.05 significance level to test the claim that the gender of the tennis player is independent of whether a call is overturned. Was the Challenge to the Call Successful? Yes No Men 246 790 Women 351 550
A social psychologist wants to know if there are differences in extraversion scores based on gender identity (male, female, nonbinary). She should use a ____ ANOVA. a. three-way within-groups b. one-way between-groups c. one-way within-groups d. three-way between-groups

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4. Use a 0.05 significance level to test the claim that gender and left-handedness are independent. Male Female Left-handed 83 184 Right-handed 17 16