(Report answer as a decimal accurate to 4 decimal places.)This P-value (and test statistic) leads to a decision to...O reject the nullO accept the nullO fail to reject the nullO reject the alternativeAs such, the final conclusion is that..O There is sufficient evidence to warrant rejection of the assertion that there is a differentproportion of only children in the G&T program.O There is not sufficient evidence to warrant rejection of the assertion that there is a differentproportion of only children in the G&T program.O The sample data support the assertion that there is a different proportion of only children inthe G&T program.O There is not sufficient sample evidence to support the assertion that there is a differentproportion of only children in the G&T program.Check AnswerType here to search E Tnfanticidean ove...In a certain school district, it was observed that 25% of the students in the element schools wereclassified as only children (no siblings). However, in the special program for talented and giftedchildren, 107 out of 336 students are only children. The school district administrators want to knowif the proportion of only children in the special program is significantly different from the proportionfor the school district. Test at the a 0.02 level of significance.What is the hypothesized population proportion for this test?(Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol.)Based on the statement of this problem, how many tails would this hypothesis test have?O one-tailed testO two-tailed testChoose the correct pair of hypotheses for this situation:(A)(B)(C)Ho:p = 0.25H:p<0.25Ho:PH.:p# 0.25Ho:p = 0.25H:p > 0.250.25(D)(E)(F)0.318 Ho:pHa:p < 0.318 H:p# 0.318 Ha:pHo:P0.318 Ho:p0.3180.318(A) (B) (C)(D) (E) (F)Using the normal approximation for the binomial distribution (without the continuity correction),what is the test statistic for this sample based on the sample proportion?(Report answer as a decimal occurate to 3 decimal places)O Type Kere to search# メ

Solution According to guideline we solve only three subpart

Answered: (Report answer as a decimal accurate to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A statement of “no difference” that contradicts the research hypothesis and is always expressed in terms of population parameters is called the a. null hypothesis. b. right-tailed test. c. t statistic. d. specified value
need help with d,f,g
New England Rocky Mountains 3.5 3.7 3.7 4.3 4 5.3 3.9 3.3 3.3 4.8 4.1 3.5 1.8 2.4 4.8 3.1 2.9 3.5 3.1 5.2 2.8 In this situation, we want to test the assumption that crime rates do not depend upon what area is being studied. State the null and alternate hypotheses for this situation. (Here are symbols you might need so that you can copy and paste them: ≠)
Need help with statistics homework question asap! 17
courses/50306/assignments/608635?module_item_id=1106150 You wish to test the following claim (Ha) at a significance level of a = 0.005. H.:µ = 59.4 Ha:u < 59.4 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 24 with mean M = 51.1 and a standard deviation of SD = 9.7. 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 p-value 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 population mean is less than 59.4. O There is not sufficient evidence to warrant rejection of the claim that the population mean is less than 59.4. O The sample data support the claim that the population mean is less than 59.4. OThere i not sufficient sample ovidence to…
You are conducting a multinomial hypothesis test (a 0.05) for the claim that all 5 categories are equally Likely to be selected. Complete the table. Observed Expected Frequency Frequency Category A 11 8 D 25 E 19 Report all answers accurate to three decimal places. But retain unrounded numbers for future calculations. What is the chi-square test-statistic for this data? (Report answer accurate to three decimal places, and remember to use the unrounded Pearson residuals in your calculations.) What are the degrees of freedom for this test? d.f.= 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
Instructor-created question E Question Help Course Note Packet Chapter 9 Page 8 and 10 How do professionals stay on top of their careers? Of 1,000 surveyed members of a business networking website, 580 reported that they engaged in professional networking within the last month. At the 0.01 level of significance, is there evidence that the proportion of all site members who engaged in professional networking within the last month is different from 55%? State the null and alternative hypotheses. Hn На Calculate the test statistic. ZSTAT =O (Type an integer or a decimal. Round to two decimal places as needed.) What is the p-value? The p-value is (Type an integer or a decimal. Round to three decimal places as needed.) State the conclusion of the test. V the null hypothesis. There is V evidence conclude that the proportion of all site members who engaged in professional networking within the last month is different from 55%.
a. What are the null and alternative hypotheses? b. The test statistic, t, is c. The P-value is d. State the conclusion for the test. e. Construct a confidence interval suitable for testing the claim that the two samples are from populations with the same mean.
_________ If one concludes that there is NO difference between the sample mean and the population mean, then: a) an alpha error has been committed b) the null hypothesis has been rejected c)there must have been no bias in the sample d) the null hypothesis has been retained
11:39 1 A myopenmath.com You are conducting a multinomial hypothesis test (a = 0.05) for the claim that all 5 categories are equally likely to be selected. Complete the table. Observed Expected Category Frequency Frequency A 13 В 11 C 12 17 E 23 Report all answers accurate to three decimal places. But retain unrounded numbers for future calculations. What is the chi-square test-statistic for this data? (Report answer accurate to three decimal places, and remember to use the unrounded Pearson residuals in your calculations.) What are the degrees of freedom for this test? d.f.= What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) a greater than a
Which of the following statements is true regarding the influence of a small alpha level in the context of hypothesis testing? a. A small alpha level reduces the likelihood of a Type I error. b. A small alpha level reduces the effect size. c. A small alpha level increases statistical power. d. A small alpha level increases the likelihood of detecting statistical significance.
An article reports that blue eyed people earn less than brown eyed people, with these numbers: average blue-eyed salary 35,000, average brown-eyed salary $37,000, p-value 0.45. Based on that reported p-value, and using the common definition of statistical significance, "which is the case? A. The results are nowhere near to being statistically significant. B. The results are almost but not quite statistically significant. C. The results are just barely statistically significant. D. The results are strongly statistically significant.

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