An annual survey of first-year college students asks 277,000 students about their attitudes on a variety of subjects.According to a recent survey, 52% of first-year students believe that abortion should be legal. Use a 0.05 significanclevel to test the claim that over half of all first-year students believe that abortion should be legal.Formulate the null and alternative hypotheses. Choose the correct answer below.OA. Ho p=0.5Ha p<0.5OC. Ho p=0.5Ha p# 0.5Find the test statistic.Z==(Round to two decimal places as needed.)OB. Ho p<0.5Ha p=0.5D. Ho p=0.5Ha p>0.5example Get more helpClear allCheck answeraQ0°C Darthou

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Answered: An annual survey of first-year college…

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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1. A Pew Poll taken in 2010 surveyed 830 randomly selected people ages 18 – 29, and found that 166 of them had one or more tattoos. Based on the sample data, can you conclude that the percentage of people aged 18 – 29 who have a tattoo is less than 25%? Use a 1% level of significance. a. Define the population proportion to be tested and write the null and alternative hypotheses. b. Check the conditions required for the test. c. Compute the test statistic.
Null and alternative hypotheses are statements incorporate a. population parameters. b. sample parameters. c. sample statistics. d. either population parameters or sample statistics.
The mean entry level salary of an employee at a company is $60,000. You believe it is lower for IT professionals in the company. State the null and alternative hypotheses.
In a survey conducted by a wedding planning website, 1206 maried or engaged women were asked about the importance of a bended knee when making a marriage proposal. Among the 1206 respondents, 62% said that the bended knee was essential. Complete parts (a) through (d). a. What is the exact value that is 62% of 1206 survey respondents? The exact value is (Type an integer or a decimal. Do not round.)
A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
Hypothesis Test: Perform the specified hypothesis test. Be sure to include your statistical andin-context conclusion statements. In 1994, 52% of parents with children in high school felt it was a serious problem that high schoolstudents were not being taught enough math and science. A recent survey found that 512 of 1000 parentswith children in high school felt it was a serious problem that high school students were not being taughtenough math and science. Do parents feel different today than they did in 1994? Use the α = 0.005significance level.
What is a null hypothesis? a. A hypothesis that states there is an effect or relationship in the population b. A hypothesis that states there is no effect or relationship in the population c. A hypothesis that is always rejected in hypothesis testing d. A hypothesis that supports the researcher's prediction
What type of statement is this? "Children of parents with college degrees are more likely to obtain college degrees themselves." a. research question b. research hypothesis c. research purpose statement d. Null hypothesis .
hypothesis testing is the topic

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