A) null hypothesis and alternative hypothesis B) determine type of test statistic C) value of test statistics E) At the 0.01 level of significance, can the researcher conclude that there is a difference between the mean score on the test by the users of Study focus and the mean score on the test by the users of Prepara?

For a certain nationwide standardized t at there are two commonly used preparation products on the market: StudyFocus and Prepare. A researcher in the Education department at a nearby university wants to determine if there is any difference between the two products on the mean score on the test by their users. The rseard'ier obtains the scars on the test from a random are chosen independently.) These data are shown in the tabl sample of 16 users of StudyFocus and a random sample of 15 users of Prepare. (These samples e. Studyfocus 389, 475, 550, 539, 410, 555, 585, 472, 486, 626, 431, 594, 403, 421, 406, 510 Prepara 504, 501, 496, 427, 509, 536, 495, 525, 527, 432, 510, 530, 490, 468, 496 ( Sued-undone. v H 'm 144) Assume that thr- two no difference between th- I. r of scars are approximately normally distributed. Can the researcher conclude, at the 0.01 level of significant" 'hat there is a Prepara? on mean of the scores on the tat by the users of StudyFocus and the population mean of the scores on the t Ne users of Perform a two-tailed test. Then complete the parts below. Carry your Intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H0 and the alternate hypothesrs H1. Ll 0 p 1-10 : [j >