ou receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 33 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 re ou support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 25 30 32 32 31 33 27 29 27 27 30 a) Write the claim mathematically and identify Hg and H, Which of the following correctly states Ho and H,? OB. H = 33 H u33 OC. Ho: u> 33 DA. Hg: <33 H, p2 33 H, us 33 OE. H u2 33 H, u< 33 OF. Ho: = 33 DD. Hg us33 H, p> 33 H, u<33 b) Use technology to find the P-value. (Round to three decimal places as needed.) c) Decide whether to reject or fail to reject the null hypothesis. Vhich of the following is correct?

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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Chapter11: Data Analysis And Displays
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You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 33 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 α = 0.10, can you support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed.

Class sizes: 25, 36, 32, 32, 33, 39, 29, 27, 28, 30, 38, 30, 31, 27, 24, 29, 27, 25

(a) Write the claim mathematically and identify \( H_0 \) and \( H_a \).

Which of the following correctly states \( H_0 \) and \( H_a \)?

A. \( H_0: \mu < 33 \)  
   \( H_a: \mu \geq 33 \)  

B. \( H_0: \mu = 33 \)  
   \( H_a: \mu \neq 33 \)  

C. \( H_0: \mu > 33 \)  
   \( H_a: \mu \leq 33 \)  

D. \( H_0: \mu \leq 33 \)  
   \( H_a: \mu > 33 \)  

E. \( H_0: \mu \geq 33 \)  
    \( H_a: \mu < 33 \)  

F. \( H_0: \mu = 33 \)  
   \( H_a: \mu < 33 \)  

(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?

A. Fail to reject \( H_0 \) because the P-value is less than the significance level.  

B. Reject \( H_0 \) because the P-value is greater than the significance level.  

C. Fail to reject \( H_0 \) because the P-value is greater than the significance level.  

D. Reject \( H_0 \) because the P-value is less than
Transcribed Image Text:You receive a brochure from a large university. The brochure indicates that the mean class size for full-time faculty is fewer than 33 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 α = 0.10, can you support the university's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. Class sizes: 25, 36, 32, 32, 33, 39, 29, 27, 28, 30, 38, 30, 31, 27, 24, 29, 27, 25 (a) Write the claim mathematically and identify \( H_0 \) and \( H_a \). Which of the following correctly states \( H_0 \) and \( H_a \)? A. \( H_0: \mu < 33 \) \( H_a: \mu \geq 33 \) B. \( H_0: \mu = 33 \) \( H_a: \mu \neq 33 \) C. \( H_0: \mu > 33 \) \( H_a: \mu \leq 33 \) D. \( H_0: \mu \leq 33 \) \( H_a: \mu > 33 \) E. \( H_0: \mu \geq 33 \) \( H_a: \mu < 33 \) F. \( H_0: \mu = 33 \) \( H_a: \mu < 33 \) (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? A. Fail to reject \( H_0 \) because the P-value is less than the significance level. B. Reject \( H_0 \) because the P-value is greater than the significance level. C. Fail to reject \( H_0 \) because the P-value is greater than the significance level. D. Reject \( H_0 \) because the P-value is less than
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