a) Using a 0.05 level of significance, do students perform differently on the three areas of the SAT? State the null and alternative hypotheses. Ho Headingstathematics writing H.: Not all the population means are equal. Ho: HReading Hathematics writing H₂ Heading" Hotathematics Pwriting Ho Headingstathematics writing Headingstathematics writing OH: At least two of the population means are equal. H: At least two of the population means are different. OH: Not all the population means are equal. H₂ Heading Hstathematics Pwriting Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) D-value- State your conclusion. O Reject Ho. There is sufficient evidence to conclude that the mean scores for the three parts of the SAT are not all equal. O Do not reject Ho. There is sufficient evidence to conclude that the mean scores for the three parts of the SAT are not all equal. O Reject Ho. There is not sufficient evidence to conclude that the mean scores for the three parts of the SAT are not all equal. O Do not reject H. There is not sufficient evidence to conclude that the mean scores for the three parts of the SAT are not all equal. b) Which area of the test seems to give the students the most trouble? Explain. The mean test scores for the three sections are for critical reading, [ for mathematics, and for writing. Because the --Select-- section has the lowest average score, this section appears to give the students the most trouble.

Recently, students in a marketing research class were interested in the driving behavior of students. Specifically, the marketing students were interested in finding out if exceeding the speed limit was related to gender. The study will use 0.05 as the significance level. They collected the following responses from 100 randomly selected students. Exceeds the Speed Limit | Does Not Exceed the Speed Limit Male 40 | 25 Female 10 | 25 The degrees of freedom for the analysis are _______. Multiple Choice 1 2 4 3

Hi Great Bartleby Team, I need asap help for this exercise, Please answer all the parts of the exercise. Thanks a lot in advance.

The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies? E Click the icon to view the table. Determine the null and alternative hypotheses. O A. Ho: Polygraph testing is accurate. H1: Polygraph testing is not accurate. O B. Ho: Whether a subject lies is not independent of the polygraph test indication. H,: Whether a subject lies is independent of the polygraph test indication. O C. Ho: Polygraph testing is not accurate. H1: Polygraph testing is accurate. VD. Ho: Whether a subject lies is independent of the polygraph test indication. H,: Whether a subject lies is not independent of the polygraph test…

pleas help solve attached.  identify the p score and test statistic  and what is the conclusion? do we fail to reject or reject? is there sufficent or insufficent evidence?

use paragragh to answer number 18

Homeless Population Per State from 2010 to 2020 Source: https://www.usich.gov/homelessness-statistics State 2010 2020 Alabama 6046 3351 Alaska 1832 1949 Arizona 13711 10979 Arkansas 2762 2366 California 123480 161548 Colorado 15482 9846 Connecticut 4316 2905 DC 6539 6380 Delaware 982 1165 Florida 57551 27487 Georgia 19836 10234 Hawaii 5834 6458 Idaho 2346 2315 Illinois 14395 10431 Indiana 6452 5625 Iowa 3014 2647 Kansas 2024 2449 Kentucky 6623 4011 Louisiana 12482 3173 Maine 2379 2097 Maryland 10845 6360 Massachusetts 16646 17975 Michigan 13058 8638 Minnesota 7869 7940 Mississippi 2743 1107 Missouri 8122 6527 Montana 1615 1545 Nebraska 3877 2404 Nevada 11205 6900 New Hampshire 1574 1675 New Jersey 13737 9662 New Mexico 3475 3333 New York 65606 91271 North Carolina 12191 9280 North Dakota 799 541 Ohio 12569 10655 Oklahoma 5229 3932 Oregon 19492 14655 Pennsylvania 14516 13375 Rhode Island 1282 1104 South Carolina 4473 4287 South Dakota 731 1058 Tennessee 10276 7256 Texas 35121 27229 Utah…

A survey was conducted to determine whether hours of sleep per night are independent of age. A sample of individuals was asked to indicate the number of hours of sleep per night with categorical options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours or more. Later in the survey, the individuals were asked to indicate their age with categorical options: age 39 or younger and age 40 or older. Sample data follow. Age Group Hours of Sleep 39 or younger 40 or older Fewer than 6 38 36 6 to 6.9 60 57 7 to 7.9 76 74 8 or more 66 93 (a) Conduct a test of independence to determine whether hours of sleep are independent of age. (b) What is your estimate of the percentages of individuals who sleep fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours or more per night?

The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.

What recommendations did the APA task force make about reporting What recommendations did the APA task force make about reporting statistical results (are significance tests alone sufficient?) What recommendations did the APA task force make about reporting