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- Please refer to the following table Scores Sample Average Sample size Sample Variance Female students 80 81 Male students 77 6. 144 Use the 4 or 5 step hypothesis tests to determine at the 2% significance level, is the mean grade of the female students different from the male ones? (Please keep 2 decimal places for all calculations) (SHOW DETAILED WORK)What is meant by a statistical hypothesis, and what are the steps for testing a statistical hypothesis?Last year, the average math SAT score for students at one school was 475. New teaching methods were introduced to hopefully improve the scores. This year, the mean math SAT score for a sample of students was 481. If the teaching method had no effect, there would be a roughly 3 out of 10 chance of seeing such an increase. Is there statistically significant evidence that the new teaching method is effective? Does the result have practical significance? Explain why or why not for both your answers.
- You are conducting a study to see if the accuracy rate for fingerprint identification is significantly less than 0.23. You use a significance level of a = 0.001. Ho:p > 0.23 HA:P < 0.23 You obtain a sample of sizen = 130 in which there are 18 successes. What is the test statistic for this sample? (Round the answer to two decimal places.) test statistic = What is the p-value for this sample? (Give the answer to four decimal places.) p-value = The p-value is... less than (or equal to) a greater than a This test statistic leads to a decision to... reject the null hypothesis, Ho accept the null hypothesis, Họ | fail to reject the null hypothesis, Ho As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the accuracy rate for fingerprint identification is less than 0.23. | There is not sufficient evidence to warrant rejection of the claim that the accuracy rate for fingerprint identification is less than 0.23. The sample data support the…You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly different from 0.23. You use a significance level of a = 0.10. Ho:p = 0.23 H₁:p 0.23 You obtain a sample of size n = 533 in which there are 103 successes. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value= The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the proportion of women over 40 who regularly have mammograms is different from 0.23. O There is not sufficient evidence to warrant rejection of the claim that the proportion of women over 40 who regularly have mammograms is different from…Please help with the 2 questions
- Part 1: Hypothesis Test for the Mean- Manual Tasks• Define your concern of interest drawing upon your variables in your dataset.• Conceptualize your null and alternate hypotheses based on your testing concept.a. Apply 1 one-sided test (upper-tail or lower-tail) and 1 two-sided test concepts for the mean with unknown population standard deviation (�) at 1%, 5%, or 10% levels of significance (choose one of them for each test) by stating the appropriate decision rule. b. Calculate p-value for each of your tests and perform testing for your same hypotheses with p-value solution. Comment on how p-value changes for 1%, 5%, and 10% significance levels (for all three).**Here in order to apply normal distribution approximation, it would be better if you choose your sample size greater than 100 (n>100).c. Make a confidence interval estimation for the population mean with unknown variancebased on 90%, 95% and 99% confidence levels and make interpretations for all three. DATASET:…Hi I know that you can’t answer all questions. Can you just answer question 12 please.You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly different from 0.84. You use a significance level of a = 0.02. Ho:p = 0.84 Ha:p +0.84 You obtain a sample of size n = 700 in which there are 574 successes. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O Reject the null O Accept the null O Do not reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the proportion of women over 40 who regularly have mammograms is different from 0.84. O There is not sufficient evidence to warrant rejection of the claim that the proportion of women over 40 who regularly have mammograms is different from…
- Answer this question, Please answer full parts to the question. Show all work and be neat. Show all conditions, and p-value, conclusion, anything under the 4 step statistical process. Thank you!Page > of 2 2. Online Calculator - Ask 20 people to answer the following questions on social media or in person, and then input your data into this website (https://www.socscistatisties.com/tests/anova/default2.aspx) to determine if you can reject the null hypothesis: a. What is your favorite season? b. On a scale of 1-10, how comfortable is the temperature outside right now? Favorite Season Comfort (1-10) Prtsc Inoert Delete DIN Fie F12 FII F8 F9 FS F6 F7 24 Backspace 8 01 4 + IIA single question with sub-parts. Please answer all parts step by step. I appreciate it :(
