Mathematics, 12.05.2021 18:50 justinhudson17
A collection of paired data consists of the number of years that students have studied Spanish and their scores on a Spanish language proficiency test. A computer program was used to obtain the least squares linear regression line and the computer output is shown below. Along with the paired sample data, the program was also given an x value of 2 (years of study) to be used for predicting test score.
Answer the following questions based on the information given above.
For a person who studies for 2 years, obtain the 95% prediction interval and write a statement interpreting the interval.
(31.61, 75.09); we can be 95% confident that the mean test score of all individuals who study 2 years will lie in the interval (31.61, 75.09)
(42.72, 63.98); we can be 95% confident that the mean test score of all individuals who study 2 years will lie in the interval (42.72, 63.98)
(42.72, 63.98); we can be 95% confident that the test score of an individual who studies 2 years will lie in the interval (42.72, 63.98)
(31.61, 75.09); we can be 95% confident that the test score of an individual who studies 2 years will lie in the interval (31.61, 75.09)
Answers: 2
Mathematics, 21.06.2019 18:50
Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling
Answers: 1
Mathematics, 21.06.2019 20:10
21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)
Answers: 3
Mathematics, 21.06.2019 22:00
Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)
Answers: 1
A collection of paired data consists of the number of years that students have studied Spanish and t...
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