(a) Using a 0.05 level of significance, do students perform differently on the three areas of the SAT?A hypothesis test will be conducted to determine if students perform differently on the three areas of the SAT.The null hypothesis, Ho, is a statement that is assumed to be true. The alternative hypothesis, Ha, is what thetest is attempting to establish.If students do not perform differently on the SAT, then the population means of the scores for each area willbe the same. The alternative hypothesis for testing the equality of population means will always have thesame form, that they are not all equal. Note that this does not necessarily mean that each population mean isdifferent, just that they are not all the same value.Therefore, we have the following hypotheses.Ho: HReading= HMathematicsHWritingHai HReading + HMathematicsHWritingHo: At least two of the population means are equal.: At least two of the population means are different.Ho: HReading+ HMathematics * HWritingHa: HReading = HMathematicsHWriting%3DHo: Not all the population means are equal.Ha: HReading = HMathematicsHWritingHo: HReadingHMathematicsHWriting%3DH: Not all the population means are equal.SubmitSkip (you cannot come back), Tutorial ExerciseYou may need to use the appropriate technology to answer this question.The Scholastic Aptitude Test (SAT) contains three areas: critical reading, mathematics, and writing. Each areais scored on an 800-point scale. A sample of SAT scores for six students follows.CriticalStudentMathematicsWritingReading15235375302597587586346646444445605665544394784276.427458423(a) Using a 0.05 level of significance, do students perform differently on the three areas of the SAT?(b) Which area of the test seems to give the students the most trouble? Explain.

Name: (a) Using a 0.05 level of significance, do students perform different
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: (a) Using a 0.05 level of significance, do students perform differently on the three areas of the SAT?A hypothesis test will be conducted to determine if students perform differently on the three areas of the SAT.The null hypothesis, Ho, is a statem

Math

Statistics

The Scholastic Aptitude Test (SAT) contains three areas: critical reading, mathematics, and writing. Each area is scored on an 800-point scale. A sample of SAT scores for six students follows. Critical Student Mathematics Writing Reading 1 523 537 530 2 597 587 586 3 466 464 444 4 560 566 554 439 478 427 6 427 458 423 (a) Using a 0.05 level of significance, do students perform differently on the three areas of the SAT? (b) Which area of the test seems to give the students the most trouble? Explain.

The Scholastic Aptitude Test (SAT) contains three areas: critical reading, mathematics, and writing. Each area is scored on an 800-point scale. A sample of SAT scores for six students follows. Critical Student Mathematics Writing Reading 1 523 537 530 2 597 587 586 3 466 464 444 4 560 566 554 439 478 427 6 427 458 423 (a) Using a 0.05 level of significance, do students perform differently on the three areas of the SAT? (b) Which area of the test seems to give the students the most trouble? Explain.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

what is the percentile rank of 40? explain your answer please.
State the conclusion for the test. Give reason for your answer.
Do iPads Help Kindergartners Learn: A Subtest The Auburn, Maine, school district conducted an early literacy experiment in the fall of 2011. In September, half of the kindergarten classes were randomly assigned iPads (the intervention group) while the other half of the classes got them in December (the control group.) Kids were tested in September and December and the study measures the average difference in score gains between the control and intervention group.52 The experimenters tested whether the mean score for the intervention group was higher on the HRSIW subtest (Hearing and Recording Sounds in Words) than the mean score for the control group. a)State the null and alternative hypotheses of the test and define any relevant parameters. b) The p-value for the test is 0.02. State the conclusion of the test in context. Are the results statistically significant at the 5% level? c) The effect size was about two points, which means the mean score for the intervention group was…
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 443 randomly selected adults showed that 62% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is:
Auto Loans-George works for a credit union that serves a large, urban area. For his annual report, he wants to estimate the mean interest rate for 60- month fixed-rate auto loans at lending institutions (banks, credit unions, auto dealers, etc.) in his area. George selects a random sample of 12 lending institutions and obtains the following rates: 3.79 5.01 5,16 3.12 4.49 5.02 n = 5.58 4.08 4.01 7.02 4.33 3.64 Round all calculated answers to 4 decimal places. George calculates a sample mean of 4.6042 and a sample standard deviation of 1.0421. 1. Calculate a 90% confidence interval for the mean interest rate for 60-month fixed-rate auto loans at lending institutions in George's area. Assume necessary conditions have been met and round your result to 4 decimal places. After calculating the interval, George decides he wants to estimate the interest rate for 60-month fixed-rate auto loans at 90% confidence with a margin of error of no more than 0.13. 2. Using George's initial sample…
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 562 randomly selected adults showed that 58% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 696 randomly selected adults showed that 62% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is
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.
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 671randomly selected adults showed that 58% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 454 randomly selected adults showed that 56% of them would erase all of their personal information online if they could. Find the value of the test statistic.
Burger King has recently added new menu items in the last few years. Q. How are you going to decide which menu items are potential winners? What statistical tests or inferential statistics can you conduct?
C. Predicting Student Success STA believes there is a relationship between high school GPA (on a four-point scale) and college performance (as measured by GPA on a four-point scale). The following data were randomly selected from among students enrolling Fall 2020. HS GPA STA GPA Student 1 HS GPA STAGPA Student 21 2.9 2.5 3.6 3.4 2 3.4 3.1 3.0 22 3.4 4.0 1.7 3 3.1 23 2.9 2.9 1.7 3.0 3.2 3.3 4 24 3.5 5 3.4 25 4.0 3.6 3.6 3.0 26 3.6 3.8 3.2 3.9 3.1 27 8. 4.0 3.9 28 3.4 3.6 3.2 9. 3.0 3.0 29 3.7 10 2.9 2.0 3.0 30 4.0 3.3 4.0 3.2 11 3.3 31 12 3.6 3.8 32 3.7 3.2 3.4 3.0 13 3.7 3.9 33 14 3.8 3.6 34 2.5 2.0 15 2.5 2.5 35 2.9 2.9 3.7 2.2 16 2.9 2.5 36 3.8 17 2.8 2.1 37 2.9 18 3.8 1.7 3.5 38 3.6 3.5 3.6 19 3.7 39 3.6 20 3.9 3.0 40 3.1 3.6 How confident should St. Mary's be regarding the accuracy of their predictions? Why?