a) What is the level of significance? State the null and alternate hypotheses. O Ho: The distributions are the same. H: The distributions are the same. O Họ: The distributions are the same. H: The distributions are different. O Họ: The distributions are different. H;: The distributions are the same. O Họ: The distributions are different. H: The distributions are different. b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.) Are all the expected frequencies greater than 5? O Yes O No What sampling distribution will you use? O binomial погmal uniform O Student's t O chi-square What are the degrees of freedom? C) Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.) d) Based on your answers in parts (a) to (e), will you reject or fail to reject the null hypothesis of independence? O Since the P-value > a, we fail to reject the null hypothesis. O Since the P-value > a, we reject the null hypothesis. Since the P-value s a, we reject the null hypothesis. O Since the P-value s a, we fail to reject the null hypothesis. (e) Interpret your conclusion in the context of the application. O At the 0.01 level of significance, there is sufficient evidence to conclude that the regional distribution of raw materials and the current excavation site distribution are not independent. At the 0.01 level of significance, there is insufficient evidence to conclude that the regional distribution of raw materials and the current excavation site distribution are not independent.

When should a s distribution be used? When there are how many cases in a sample? When should a t distribution be used? When there are how many cases in a sample?

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

State the null and alternate hypothesis. Will you use a left tail, right tail or 2 tailed test? Identify the sampling distribution to be used: standard normal, Student’s t or chi squared. Find the value of the test statistic. Find the P-Value. Based on your answers, shall we reject or accept the null hypothesis? Write the conclusion in the context of the problem.

Inferential statistical analyses that are not based on a set of assumptions of the z test? a. Permissible only when certain assumptions about the sample are met b. nonparametric c. parametric d. innacurate

For the next items, identity the appropriate statistical test that will be utilized in hypothesis testing. SE T- test T- test (one factor/sample) (Dependent) (Independent) T-test F- Test (Standard Error)

fror TIME SUBJECT ROOM AVONOW 1 INSTRUC You may need to use the appropriate appendix table or technology to answer this question. Consider the hypothesis test. Ho: P₁ P₂ ≤0 Ha: P₁ P₂ > 0 The following results are for independent samples taken from the two populations. Sample 2 A VENEMAAL 7₂ = 300 Sample n₁ = 200 P₁ = 0.24 P₂ = 0.14 (a) Calculate the test statistic. (Round your answer to two decimal places.) 2.86 You may have rounded in the wrong direction. AVAN XVԺՎՈԼԵՏ

Do men and women select different breakfasts? The breakfasts ordered by randomly selected men and women at a popular breakfast place are shown below. Frequencies of Breakfasts for Men and Women   French Toast Pancakes Waffles Omelets Men 81 59 84 87  Women 114 75 104 58   What can be concluded at the αα = 0.05 significance level? What is the correct statistical test to use? Goodness-of-Fit Paired t-test Independence Homogeneity What are the null and alternative hypotheses?H0:H0:  The distribution of breakfast ordered for men is the same as it is for women. The distribution of breakfast ordered for men is not the same as it is for women. Breakfast ordered and gender are dependent. Breakfast ordered and gender are independent. H1:H1:  The distribution of breakfast ordered for men is not the same as it is for women. Breakfast ordered and gender are independent. The distribution of breakfast ordered for men is the same as it is for women. Breakfast ordered and gender…

The hypotheses, Null and Alternative, are basically statements about which of the following? * O both population and sample parameters sample statistics O population parameters O sample parameters