MAT220.34: Statistics I [MOD1 ONLINE (8/27-10/21/2018)) Test: POST UNIT 4 Test C
ID: 3073058 • Letter: M
Question
MAT220.34: Statistics I [MOD1 ONLINE (8/27-10/21/2018)) Test: POST UNIT 4 Test CH 6 &7 This Question: 1 pt Andrew Johnson & 9/23/18 9:29 PM Time Remaining: 02:29:13 Submit Test 49 of 13 (8 complete) This Test: 13 pts possible E Question Help Suppose the lengths of human pregnancies are normally distributed with p 266 days and o 16 days. Complete parts (a) and (b) below a) The figure to the rig ht represents the normal curve with-266 days and 16 days. The area to the left of X-245 is 0 0947 Pro de t 0 interpretations of this area Provide one interpretation of the area Select the correct choice below and fill in the answer boxes to complete your choice Type integers or decimals Do not round.) A. The proportion of human pregnancies that last less than days is The proportion of human pregnancies that last more than days is[] OB. Provide a second interpretation of the area. Select the correct choice below and fill in the answer boxes to complete your choice Type integers or decimals. Do not round.) O A. The probability that a randomly selected human pregnancy lasts less than O B. The probability that a randomly selected human pregnancy lasts more than days is days is (b)The figure to the nght represents the normal curve with -266 days and -16 days. The area between x 290 and x305 is 00594 Provide two nter relations of this area Provide one interpretation of the area Select the correct choice below and fill in the answer boxes to complete your choice (Type integers or decimals. Do not round Use ascending order.) O A. The proportion of human pregnancies that last between and days is OB. The proportion of human pregnancies that last less than or more than days is Click to select and enter your answer(s). 9:29 PM O Type here to search 8 7 5 6 8Explanation / Answer
a) Correct answer: option (A) : The proportion of human pregranace that last less than 245 days is 0.0947 = 9.47%
Correct answer: option (A) The probability of of human pregranace that last less than 245 days is 0.0947
b)
Correct answer: option (A) : The proportion of human pregnance that least between 290 and 305 is 0.0594 = 5.94%
Correct answer: option (A) : The probabilty of human pregnance that least between 290 and 305 is 0.0594
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