p = proportion of students who abandon their studies due to lack of economic resourcesA sociologist assures that in his country more than 40% of the students who abandon theirstudies lack economic resources.He identifies:a) The research hypothesis H1b) The null hypothesis H0c) The rejection region of the null hypothesisO a) H1: p < 0.4b) Họ: p > 0.4c) (-00, -z]O a) H;: p > 0.4b) Hо: р < 04c) [z, 00)O a) H;: p > 0.4b) Họ: p< 0.4c) (-00 , -z]O a) H1: p < 0.4b) Họ: p> 0.4c) [z, 00)

The claim is that more than 40% of the students who abandon their studies lack economic resources.

Answered: p= proportion of students who abandon…

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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A. Determine the test statistic B. Determine the P-value C.reject or fail to reject H0 D. Determine if the results suggest that all of child booster seats meet the specified requirement.
4. A researcher interviews by phone a province-wide random sample of persons aged 18 and above about their attitude toward divorce. Using the following set of results, the hypothesis that the attitude of respondent toward divorce vary across gender was tested. 4. A researcher interviews by phone a province-wide random sample of persons aged 18 and above about their attitude toward divorce. Using the following set of results, the hypothesis that the attitude of respondent toward divorce vary across gender was tested. Table 1. Contingency Table Male Female 88 Favor Not in favor 39 46 92 Table 2. Analysis Result Value df Sig. (2-sided) Stat 17.922 1 .000 a. How many respondents are involved in the study? b. What are the measurement levels of gender and attitude?
It has been claimed that over 30 percent of entering college students have blood cholesterol levels of at least 200. Randomly select 20 students to test this hypothesis. draw at the 5 percent level of significance? What conclusion do you Student Weight Cholesterol Pressure Gender 147 213 127 156 174 116 M 112 193 110 4 127 196 110 144 220 130 140 183 99 119 194 112 139 200 102 9. 161 192 121 10 146 200 125 11 190 200 125 12 126 199 133 13 164 178 130 14 176 183 136 15 131 188 112 16 107 193 113 17 116 187 112 18 157 181 129 19 186 193 137 20 189 205 113 EMMFFEMMM
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7)
9. A student researcher is assigned the task of finding out if the level of education attained by a person depended on the income class to which he/she belonged. He interviews 60 persons. The results are recorded on the table below. Level of Income Bracket Education A в Attained High School 15 Graduate College Graduate With MA/PhD Degrees 2 10 3 4 5. The student applies a test of independence at 5% level. What is his conclusion?
a) A researcher has asked members of various occupations if they favor or oppose increasing welfare benefits at the taxpayer's expense. Treating occupation as a nominal-level independent variable, use the following data to test the null hypothesis that occupation is not related to attitudes toward increased welfare benefits. Use α = .05. Occupational Level Favors Opposes Professional 46 97 Clerical 81 143 Skilled 93 88 Semiskilled 241 136 Unskilled 131 38 Total 592 502 B) Compute and interpret an appropriate measure of…
5 PART E Can we conclude that the median monthly rent for the apartments on the east side is less than what is stated on the website? YES OR NO
Gender/Color Black Brown Blonde Other Total Male 144 113 118 147 522 Female 117 110 124 115 466 Total 261 223 242 262 988 The contingency table shows a random sample of people divided up by gender and hair color. At a 1% Level of Significance, test to determine whether gender and hair color are independent. 1. The hypotheses are : O Ho:Gender and hair color are not independent Ha:Gender and hair color are independent O Ho:Gender and hair color are independent Ha:Gender and hair color are not independent 2. This is a O rightO twoOleft tailed test; d.f. = or %3D 3a. The STS (to 2 decimals) is x = 3b. The P-value (to 3 decimals) = 4a. The decision at a = 1% is O Do not reject Ho O Reject Ho
Which of the following is a research hypothesis? A. Liberals and conservatives have the same voting rates. B. The rates of that senior citizens receive moving violations are not different from rates of moving violations seen in teenagers. C. White and African Americans watch the same amount of TV. D. Men and women have different levels of income.
10. The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. If you were conducting a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population, what would the null and alternative hypotheses be? a. Ho: b. Ha
Age/Preference Alcohol Soft drink Coffee/tea Total 21-39 96 55 36 187 40-65 93 75 52 220 Over 65 74 59 55 188 Total 263 189 143 595 A random sample of adults was asked what their beverage of choice is when they go out to dinner. At a 10% Level of Significance, use the data in the table to determine whether age and beverage choice are independent. 1. The hypotheses are : O Ho:Age and drink preference are not independent Ha:Age and drink preference are independent O Ho:Age and drink preference are independent Ha:Age and drink preference are not independent 2. This is a O rightO leftO two tailed test; d.f. = 3a. The STS (to 2 decimals) is x? = 3b. The P-value (to 3 decimals) = 4a. The decision at a = 10% is O Do not reject Ho O Reject Ho

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