Homework Answers
One proportion \(z\) -test type of inference test should use Jamila due to the population parameter is the proportion of college student shop online is \(75 \%\), large sample size is 200 and sample is taken from simple random sampling.
The answer is \(\mathrm{d}\).
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A research company is claiming that 75% of college students shop online. Jamila takes a sample...
Tyler wants to determine if an individual's age affects whether or not they like jazz, rock,...
Tyler wants to determine if an individual's age affects whether or not they like jazz, rock, or country music. Which type of inference test should Tyler use? a.) Two-way ANOVA b.) Chi-squared test for association/independence c.) One-sample t-test d.)One proportion z-test
At a certain college a random sample of 90 college students were surveyed and 75 students...
At a certain college a random sample of 90 college students were surveyed and 75 students were found to have cars on campus. It had long been believed that 80% of students kept their cars on campus. Is there evidence, using alpha = 0.05, to say the proportion has increased? State the type of test you are performing (multiple choice) State the null and alternative hypotheses Using Minitab results, state the test statistic Using Minitab results, state the p-value Decision...
Question 10 Background: Name That Scenario: Pet Adoption One important aspect in statistics is to understand...
Question 10 Background: Name That Scenario: Pet Adoption One important aspect in statistics is to understand which statistical methods or procedures are appropriate to use to address the research problem or question of interest. For each description of a research question below, select the one corresponding statistical analysis technique most appropriate for addressing that research question. An employee who has just been put in charge of the pet adoption fundraiser thinks that a personal phone cal to recent adopters asking...
AL LLD Records, some of the market research of college students is done during promotions on...
AL LLD Records, some of the market research of college students is done during promotions on college campuses, while other market research of college students is done through anonymous mail, phone, internet, and record store questionnaires. In all cases, for each new CD the company solicits an "intent-to- purchase" score from the student, with being the lowest score ("no intent to purchase") and 100 being the highest score ("full intent to purchase"). The manager finds the following information for 145...
AL LLD Records, some of the market research of college students is done during promotions on...
AL LLD Records, some of the market research of college students is done during promotions on college campuses, while other market research of college students is done through anonymous mail, phone, internet, and record store questionnaires. In all cases, for each new CD the company solicits an "intent-to- purchase" score from the student, with being the lowest score ("no intent to purchase") and 100 being the highest score ("full intent to purchase"). The manager finds the following information for 145...
Research question: Do adult learners and traditional students score differently on the midterm exam? Midterm exam...
Research question: Do adult learners and traditional students score differently on the midterm exam? Midterm exam scores were collected from a sample of 200 students. In that sample, 120 identified as adults learners and 80 identified as traditional students. Which of the following statistical procedures can be used to address this research question using these data? Paired (dependent) means t test One sample mean t test Two independent means t test One sample proportion z test
Your research hypothesis is "In the population, a driver's speed (mph) varies by the type of...
Your research hypothesis is "In the population, a driver's speed (mph) varies by the type of vehicle he/she drivers." What type of analysis should be used? a. paired-sample t-test b. independent samples t-test c. One way ANOVA d. Two-way ANOVA e. chi-square
A sample of 10 students takes a test first online and then on paper. A researcher...
A sample of 10 students takes a test first online and then on paper. A researcher compares students’ performance when a test is given online and performance when the test is on paper. The analysis shows the following data: = 1.7; sD = 1.49; t = 3.61. What is the effect size of the difference as measured by Cohen’s d?
For the following questions , identify the type of test that should be used. Simply use...
For the following questions , identify the type of test that should be used. Simply use the corresponding letter: A) One-sample z test (for a mean); B) One-sample t-test; C) One-sample z-test for a proportion (or a chi-squared goodness-of-fit); D) Chi-square goodness of fit (and a z-test is not appropriate); E) Two-sample z-test for a difference between proportions (or a chi-squared test for independence); F) Chi-square test for independence (and a z-test is not appropriate); G) Simple regression; H) Multiple...
We are interested in examining the IQ scores of college students versus the average population IQ....
We are interested in examining the IQ scores of college students versus the average population IQ. We take a sample of 25 college students and have them take the WAIS. Our sample of college students had an average WAIS of 110, and the known population mean for the WAIS is 100 with σ= 15. a. What type of statistical test should we conduct (z score, one sample t test, independent measures t test, repeated measures t test)? How do you...
Question 10 Background: Name That Scenario: Pet Adoption One important aspect in statistics is to understand which statistical methods or procedures are appropriate to use to address the research problem or question of interest. For each description of a research question below, select the one corresponding statistical analysis technique most appropriate for addressing that research question. An employee who has just been put in charge of the pet adoption fundraiser thinks that a personal phone cal to recent adopters asking...
AL LLD Records, some of the market research of college students is done during promotions on college campuses, while other market research of college students is done through anonymous mail, phone, internet, and record store questionnaires. In all cases, for each new CD the company solicits an "intent-to- purchase" score from the student, with being the lowest score ("no intent to purchase") and 100 being the highest score ("full intent to purchase"). The manager finds the following information for 145...
AL LLD Records, some of the market research of college students is done during promotions on college campuses, while other market research of college students is done through anonymous mail, phone, internet, and record store questionnaires. In all cases, for each new CD the company solicits an "intent-to- purchase" score from the student, with being the lowest score ("no intent to purchase") and 100 being the highest score ("full intent to purchase"). The manager finds the following information for 145...
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