You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 31 students. You want to test this claim, You randomly select 18...

Extracted text: You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 31 students. You want to test this claim, You randomly select 18 classes taught by full-time faculty and determine the class size of each. The results are shown in the table below, At a = 0.01. can vou support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 32 26 27 30 31 37 23 28 320 29 27 37 32 31 25 31 29 22 (a) Write the claim mathematically and identify Ho and Ha. Which of the following correctly states Ho and Ha? O C. Ho: H=31 O A. Ho: H> 31 Hai H531 O B. Ho: H231 Ha:H<31><31 of.="" ho:="" us31="" o="" d.="" ho:="" h="31" ha="" h#31="" o="" e.="" ho:=""><31 ha:h231="" h:u="">31 (b) Use technology to find the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Which of the following is correct? O A. Fail to reject Ho because the P-value is less than the significance level. O B. Reject H because the P-value is less than the significance level. Click to select your answer(s). MacBook Air F6 모□ F3 F5 F4 F2 esc & 2$ % 5.


Extracted text: (c) Decide whether to reject or fail to reject the null hypothesis. Which of the following is correct? O A. Fail to reject Ho because the P-value is less than the significance level. OB. Reject Ho because the P-value is less than the significance level. OC. Fail to reject Ho because the P-value is greater than the significance level. O D. Reject H, because the P-value is greater than the significance level. (d) Interpret the decision in the context of the original claim. O A. At the 1% level of significance, there is sufficient evidence to support the claim that the mean class size for full-time faculty is fewer than 31 students. O B. At the 1% level of significance, there is not sufficient evidence to support the claim that the mean class size for full-time faculty is more than 31 O C. At the 1% level of significance, there is sufficient evidence to support the claim that the mean class size for full-time faculty is more than 31 students. studems. O D. At the 1% level of significance, there is not sufficient evidence to support the claim that the mean class size for full-time faculty is fewer than 31 students. Click to select your answer(s). MacBook Air F7 믿 F3 남 FA esc 23 24 @ 4 Y. R E.