Question

Consider the observed frequency distribution for a set of grouped random variables available below. Perform a chi square test using a α =0.05 to determine if the observed frequencies follow the normal probability distribution with u-101 and ơ-19 EEl Click the icon to view the observed frequency distribution. State the appropriate null and alternative hypotheses. What is the null hypothesis? O A. H The mean number of the random variable is equal to 101 O B. Ho: The mean number of the random variable is not equal to 101 Frequency distribution с. Ho: The random variable follows the normal probability distribution. D. Ho: The random variable does not follow the normal probability distribution Frequency, fo Random Variable, x Less than 82 82 to under 101 101 to under 120 120 and more Total What is the alternative hypothesis? 10 16 18 OA. H: The random variable follows the normal probability distribution. O B. H1 : The mean number of the random variable is equal to 101 O C. H1 : The mean number of the random variable is not equal to 101 O D. H: The random variable does not follow the normal probability distribution. Calculate the chi-square test statistic, x2 2(Round to two decimal places as needed.) Determine the p-value p-value J (Round to three decimal places as needed.) State the appropriate conclusion. 50 Print Done VHo. There is Vevidence to conclude that the random variable does not follow the normal probability distribution.

Answer 1

42 Excte 1-47 32- 12 0.3927 119,BS=19 ol-lo L S 20-o "Х二9.oooo+1.3333 + S.