QUESTION 6What is the "null hypothesis"?O a. that the dependent variable WILL be related to the independent variableO b. that the dependent variable WILL NOT be related to the independent variableO C. that the test will be "two-tailed"O d. that the research has been flawed and is therefore invalidQUESTION 7A researcher rejects the null hypothesis when the data, correctly interpreted, should have led him/herClick Save and Submit to save and submit. Click Save All Answers to save all answers.MAYAa11CelebrateMacBook Air

We have given that the statement about to the null hypothesis. Here need to find out the correct…

Answered: QUESTION 6 What is the "null…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 24PFA

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A car dealer suspects that the weather of the day of the test drive has an effect on the purchasing behavior. The car dealer recorded the observations in a cross-tab. Sunny Cloudy Rainy Total Purchase Made 6 4 0 Purchase NOT Made 0 4 6 Total Using a Chi-squared test, test the null hypothesis that weather and purchasing behavior are independent against the alternative that they are dependent. The variables "Purchase Made," "Purchase NOT Made," Sunny", Cloudy," and "Rainy" are best characterized as Question 1 options: A Categorical data B Quantitative data C Continuous data D All of the above How many test rides are being examined in this Chi-squared test? A 4 B 6 C 10 D 20 If car purchase and weather on test drive were independent events, what would be the expected…
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a.) There is some evidence that political views are shaped by where one grew up—in a city, in a suburb, or in a rural area. Using the "comm" variable (0 = rural; 1 = suburban; 2 = urban), we run a regression explaining where one lies along the abortion spectrum (0 = pro-life, 4 = pro-choice). Using the results below, assess that relationship. What is the null hypothesis (be specific)? Do we reject it or not? Interpret your findings for the layperson as well. . regress abort comm Source | SS df MS Number of obs = 305 -------------+---------------------------------- F(1, 303) = 2.57 Model | 5.36960305 1 5.36960305 Prob > F = 0.1100 Residual | 633.364823 303 2.09031295 R-squared = 0.0084 -------------+---------------------------------- Adj R-squared = 0.0051 Total | 638.734426 304 2.10110009 Root MSE = 1.4458…
State your conclusion to the hypothesis test. Is achieving a basic skill level in a subject independent to the location of the school? A random sample of students categorized by the location of school and the number achieving basic skills in three subjects is shown in the table. Subject Location of School Reading Math Science Urban 43 42 38 Suburban 63 66 65 Conduct a chi-square test of independence at the 1% significance level to test whether the two variables are independent and state your conclusion. Hint: the test statistic is: χ2=0.30Question 16 options: a. There is not sufficient sample evidence to suggest that skill level in a subject is dependent of location. b. Cannot be determined. c. There is sufficient sample evidence to suggest that skill level in a subject is dependent of location. d. There is sufficient sample evidence to suggest that skill level in a subject is independent of location. e. There is not sufficient sample evidence to suggest that skill level…
In a chemistry class, Angela and Christy were performing a hypothesis test concerning the mean amount of sugar in an 8oz soda drink. Both students arrived at the same test statistics, but Angela’s result was to reject the null hypothesis, while Christy’s result was not to reject the null hypothesis. Which of the following is NOT a possible explanation for why the students had different conclusions? a. Angela was performing a one-tail test, but Christy was performing a two-tail test. b. Angela considered the test statistic to be z, while Christy considered the test statistic to be t. c. Angela computed the p-value of the test statistics, while Christy compared the test statistic to the corresponding critical value in the chart. d. Angela performed an upper-tail test, while Christy performed a lower-tail test. e. Angela was testing at an α=0.05, but Christy was testing at an α=0.01 level.
Annie conducts a study to examine the differences in stress levels between pet owners and non-pet owners. She conducts a two-tailed test and tells that she rejected the null hypothesis. Therefore, which of these statements is true? Question 8 options: Pet owners have more stress than non-pet owners. Pet owners have less stress than non-pet owners. Pet owners' and non-pet owners' stress levels differ, but it is not known how they differ. Pet owners' and non-pet owners' stress levels do not differ.
Which of these is a manifestation of null hypothesis? a. As temperature increases so too will the level of aggression b. Older adults will have worse memories than younger adults c. There will be no relationship between caffeine consumption and performance d. There will be a significant difference between group 1 and group 2
Professor Brubaker conducted a study regarding a possible relationship between GPA and participation in college athletics. His study included 40 college students and he generalized to all possible athletes in NCAA Division I schools. Dr. McCall later attempted to replicate Professor Brubaker's study using 65 college students (and also hoped to generalize to all possible athletes in NCAA Division I schools). Which of the following is true regarding these two studies? a. The standard error in both studies is the same. b. The standard error in Professor Brubaker's study is lower than the standard error in Dr. McCall's study. c. Dr. McCall's study will yield larger mean differences than Professor Brubaker's study. d. None of the above are true.
A researcher wants to know if there is a relationship between gender and the likelihood of being a psychology major. A sample of n=200 participants is surveyed and the observed results are presented in the table below. Male Female Yes 20 70 No 80 30 Which of the following lists the appropriate hypotheses for this question and data? a. Ho (null): the variables are independent; H1 (alternative): the variables are not independent b. Ho (null): the variables are not independent; H1 (alternative): the variables are independent A researcher wants to know if there is a relationship between gender and the likelihood of being a psychology major. A sample of n=200 participants is surveyed and the observed results are presented in the table below. Male Female Yes 20 70 No 80 30 Which of the following lists the correct value of the test statistic and critical value? a. 7.98 (test statistic); 1.34 (critical value) b.…
A researcher was interested in the relationship between eye color and hair color in a population of high school students. The data collected is shown below. The researcher plans on performing a test of independence on the variables using a 5% level of significance. Blue eyes Brown eyes Green eyes Other Black hair 6 1 10 9 Blonde hair 10 9 Tools Table 1 Brown hair 1 10 1 10 Red hair 7 0 1 8 Summarize the results of this hypothesis test. Your answer should be in the form of a complete sentence and use appropriate vocabulary. Edit View Insert Format Other 11 5 9 6
A researcher wants to test if reflective journal writing can improve students’ statistical reasoning skills. She will test this on two groups: the control and experimental groups. Reflective journal writing will be administered to the experimental group only. The researcher will test if the mean level of statistical reasoning of the experimental group is higher than that of the control group. State the null and alternative hypothesis of the following situations Then, identify the parameter.
Answer the following problem about hypothesis testing with up to four decimal places.

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