Question

29. A study was conducted among birdwatchers to see whether there is an association between age and the type of binoculars preferred. The subjects were classified in one of the following age brackets: 21-30, 31-40, 41-50, 51-60, and 60+. The binocular brands were one of the following: Canon, Eagle Optics, Nikon, or Olympus. Assume that all assumptions are satisfied. If the Chi-square test statistic is 17.1762, find the p-value: *

(A) 0.0032 (B) 0.0266 (C) 0.0447 (D) 0.1431

30. We want to see if there is a significant difference in the average sales price of MP3 players using two different buying methods on a certain website: Bid and Buy it Now. Data is collected on 10 MP3 players bought using Bid and the average sales price is $85. Data is also collected on 10 MP3 players bought using Buy it Now and the average sales price is $78. Assuming both populations have a standard deviation of $15, run the appropriate test and calculate the p-value.: *

(A) 0.2967 (B) 0.0001 (C) 0.0200 (D) 0.7033

Answer 1

Answer question

...statistic = 17,1762 not forvente en los la P value plurt = =PLtr 7 171 1762) 1.043 from & tables I calculator Play > 17.1762) = 0.143) Lolrond correct As per chegs quidlines ASK EACH OUESTIONS OPERATELY. Since & is known za 18 for both 8578 21-04341 Palue ? & PL271.0434 - 2X00148372 0.2967 OPTONA)