1 answer

I want to ensure I am understanding this question fully Amath teacher claims that she has...

Question:

Amath teacher claims that she has developed a review course that increases the scores of students on the math portion of a co

The P-value is 0.005 (Round to three decimal places as needed.) Is the sample mean statistically significantly higher? O No O

SIMUH JIS IS JT6 WIN SIII | | UUV|||UTU LU| | | |-- Đd| 5 || || UUD| JJ DJ|U. (d) Test the hypothesis at the a=0.10 level of

What do you conclude about the impact of large samples on the P-value?! O A. As n increases, the likelihood of rejecting the

I want to ensure I am understanding this question fully

Amath teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with p=512. The teacher obtains a random sample of 2200 students, puts them through the review class, and finds that the mean math score of the 2200 students is 518 with a standard deviation of 110. Complete parts (a) through (d) below. (a) State the null and alternative hypotheses. Let u be the mean score. Choose the correct answer below O A. Hop=512. H: 512 B. Hop=512. H,:> 512 OC. How >512, H, #512 OD. Hou <512, H, >512 (b) Test the hypothesis at the a=0.10 level of significance. Is a mean math score of 518 statistically significantly higher than 512? Conduct a hypothesis test using the P-value approach Find the test statistic to = 2.56 (Round to two decimal places as needed.) Find the P-value More
The P-value is 0.005 (Round to three decimal places as needed.) Is the sample mean statistically significantly higher? O No O Yes (c) Do you think that a mean math score of 518 versus 512 will affect the decision of a school admissions administrator? In other words, does the increase in the score have any practic significance? ificant Yes, because every increase in score is practically No, because the score became only 1.17% greater. O
SIMUH JIS IS JT6 WIN SIII | | UUV|||UTU LU| | | |-- Đd| 5 || || UUD| JJ DJ|U. (d) Test the hypothesis at the a=0.10 level of significance with n=375 students. Assume that the sample mean is still 518 and the sample standard deviation is still 110. is a sample mean of 518 significantly more than 5127 Conduct a hypothesis test using the P-value approach Find the test statistic to = 1.06 (Round to two decimal places as needed.) Find the P-value. The P-value is 0.146 (Round to three decimal places as needed.) Is the sample mean statistically significantly higher? O No © Yes
What do you conclude about the impact of large samples on the P-value?! O A. As n increases, the likelihood of rejecting the null hypothesis increases. However, large samples tend to overemphasize practically significant differences. O B. As n increases, the likelihood of not rejecting the n. ypothesis increases. However, large samples tend to overemphasize practically significant differences O C. As n increases, the likelihood of not rejecting the null hypothesis increases. However, large samples tend to overemphasize practically insignificant differences O D. As n increases, the likelihood of rejecting the null hypothesis increases. However, large samples tend to overemphasize practically insignificant differences

Answers

INSTITUTE OF TANTS OF INO Suppose Xit the exam score , than - xu Nl M=512) Sample size=h=2200 Sample mean =X = 518 Sample std

BERGHIEN Z= 2.56 Now p-value = P(Z >2:5584) - şsince it is a night tailed test? = - PZ < 2.5584) en = -0.9947 In excel - 0.00We use Z-test because sample size is large enough (1230) P-value = P(Z >1.06 ) = 1 -P(Z <1.06) 2 =NORM-S. DISTE = -0.8546 (1.

.

Similar Solved Questions

2 answers
If the individual measure of an angle in a regular polygon is #156°# how many sides does the polygon have?
If the individual measure of an angle in a regular polygon is #156°# how many sides does the polygon have?...
1 answer
Concord Corporation issues $550,000 of 9% bonds, due in 9 years, with interest payable semiannually. At...
Concord Corporation issues $550,000 of 9% bonds, due in 9 years, with interest payable semiannually. At the time of issue, the market rate for such bonds is 10%. Click here to view factor tables. Compute the issue price of the bonds. (Round present value factor calculations to 5 decimal places, e.g....
1 answer
Thank you very much for helping me
Thank you very much for helping me!Here are some more sentences I'd like you to check. Thank you very much!1) In fighting against the dragon, Beowulf performed (can you use “did” too?) three actions. 2) First he, concealed by the barrow, raised his shield. OR Concealed by the barrow,...
1 answer
What does it mean to have an inflammatory response in a blood test?
What does it mean to have an inflammatory response in a blood test?...
1 answer
As the corporate ISSO, determine how you would ensure that Web applications are compliant with the...
As the corporate ISSO, determine how you would ensure that Web applications are compliant with the applicable security standards. Select one such standard and explain how you would keep it in compliance....
1 answer
For each scenario listed on the left, determine whether the scenario represents an Indepenent Samples or...
For each scenario listed on the left, determine whether the scenario represents an Indepenent Samples or Matched pairs situation by placing the appropriate letter in the box provided. ----Comparing pain levels before and after treatment with magnetic therapy ----Comparing pre-test scores before tra...
1 answer
Volumetric Determination of a Sulfuric Acid Solution Initial concentration: assumed 6M H2SO4 Trial 1 Trial 2...
Volumetric Determination of a Sulfuric Acid Solution Initial concentration: assumed 6M H2SO4 Trial 1 Trial 2 Molarity of NaOH (aq) 0.2053 M 0.2053 M Initial burette reading, mL 18.50 mL 28.30 mL Final burette reading, mL 29.50 mL 39.10 mL a) Moles of NaOH added...
1 answer
1, 2, 3, complete the following reactions by supplying the missing reactant or product indicated by...
1, 2, 3, complete the following reactions by supplying the missing reactant or product indicated by a question mark. Where applicable, indicate the formal charges. (NOTE THE QUESTIONS MARK IN THE QUESTIONS ANT BELOW CAN BE Complete the following reaction by supplying the missing reactant or produ...
1 answer
Siam Traders Balance Sheet As of January 24, 2019 (amounts in thousands) Cash 9,100 Accounts Payable 1,900 Accoun...
Siam Traders Balance Sheet As of January 24, 2019 (amounts in thousands) Cash 9,100 Accounts Payable 1,900 Accounts Receivable 4,400 Debt 2,400 Inventory 4,800 Other Liabilities 600 Property Plant & Equipment 15,600 Total Liabilities 4,900 Other Assets 2,600 Paid-In Capital 6,900 R...
3 answers
Adam colored two parts of a 4 × 4 grid
Adam colored two parts of a 4 × 4 grid. He colored 1_2 of the squares red and 1_4 of the squares blue. How many of the squares are not colored? Explain your answer. What fraction of the squares are not colored? Explain your answer....
1 answer
Look up and define "chipkill" as an error control/correction approach. In your reasoned opinion (a yes...
Look up and define "chipkill" as an error control/correction approach. In your reasoned opinion (a yes or no answer is not sufficient), what are the merits of chipkill?...
1 answer
< Back to Assignment Keep the Highest:14 Attention: Due to a bug in Google Chrome, this...
< Back to Assignment Keep the Highest:14 Attention: Due to a bug in Google Chrome, this page may not function correctly. Click here to learn more Assumptions underlying the repeated-measures t test A Aa 4. Individuals with a condition known as "prosopagnosia·cannot recognize faces. The...
1 answer
Hi! Could you help me answer number 3,4 and 5 please? The first picture is the...
Hi! Could you help me answer number 3,4 and 5 please? The first picture is the experiment result, the second picture is the unknowns option, and the third picture is the questions Title: Unknown #1-Section C 100 Fri May 06 10:23:14 2016 (G 90 80 70 60 50 40 4000 3500 3000 2500 2000 1500 1000 No...
1 answer
You're going to stick a needle in someone's arm to draw blood for the first time....
you're going to stick a needle in someone's arm to draw blood for the first time. you wipe their skin with alcohol first. what's one advantage alcohol has over other chemicals for doing this job well?...
1 answer
Mirada Company manufactures handheld calculators and has the following information available for the month of July:...
Mirada Company manufactures handheld calculators and has the following information available for the month of July: Work in process, May 1 (100% complete for July, 25% for conversion) Direct materials Conversion cost $ $ 126,000 units 240,000 394,000 Number of units started 220,000 units July costs ...
1 answer
Hi please help me solve this word problem
Hi please help me solve this word problem. The function A=A(base of 0)e^-0.01152x models the amount of pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material wsa put into the vault. If 800 pounds of material are initially put into th...
1 answer
10. o poim) Listhe element in the set a = es]a,bez} 10. (10 points) List three...
10. o poim) Listhe element in the set a = es]a,bez} 10. (10 points) List three elements in the set A =...