Question

To test Ho: -20 versus H20, a simple random sample of size 18 is obtained from a population that is known to be normally distributed Answer parts ( ad). Click here to view the t-Distribution Area in Right Tol (a) If x= 18.1 and 4, compute the test siistic -Round to two decimal places as needed.) (b) Draw a distribution with the area that represents the P-val shaded. Which of the following graphs shows the correct shaded region? B a Q A. Ос. A ^ (c) Approximate the P-value. Choose the correct range for the P-value below. O A. 0.05 <p value <0.10 OB. 0.15<P value <0.20 OC. 0.025<P value <0.05 OD. 0.10<P value <0.15 (d) If the researcher decides to test this hypothesis at the 0.05 level of significance will the researcher reject the null hypothesis? O A The researcher will not reject the nul hypothesis since the P-value is not less than a OB. The researcher will reject the null hypothesis since the P-value is less than a Click to select your answers

Answer 1

18.) - 20 a) t = X-M slin u IiT8 t 2015 6) ophon C c ) df n-p= 18-1=17 0.025 L p-value <0.05- 0.05 then refect Ho. d ) let los be ophon B.