To test Ho: u = 40 versus H,: u<40, a random sample of size n=26 is obtained from a population that is known to be normally distributed. Complete parts (a) through (d) below. A Click here to view the t-Distribution Area in Right Tail. (a) If x = 37.9 ands = 14.8, compute the test statistic. (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the a = 0.1 level of significance, determine the critical value(s). Although technology or at-distribution table can be used to find the critical value, in this problem use the t-distribution table given. Critical Value: (Round to three decimal places. Use a comma to separate answers as needed.) (c) Draw a t-distribution that depicts the critical region. Choose the correct answer below. O A. OB. Oc. Q Q d) Will the researcher reject the null hypothesis?

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.