Suppose the relationship between Y and X is given by: Y = 4 + 3.2*X + error  By how much does the expected value of Y change if X increases by 10 units? (Round your answer to two decimal places: ex: 123.45)

Please do & explain with steps: Subparts e f & g please & thank u

%3D Suppose a and y vary together such that y = 3x + 8. a. Suppose x varies from x = 2 to a = 9.5. %3D

The correlation between hours of sleep and hours of study is r = 0.14. (a) Calculate r². (Round your answer to four decimal places.) ,2 = = (b) Choose a sentence that interprets value r². 1.96% of the variation in hours of sleep is not explained by hours of study. Variation in hours of study explains about 1.96% of the observed variation in hours of sleep. 1.96% of the variation in hours of sleep is not explained by the variation in hours of study. Hours of study explains about 1.96% of the observed variation in hours of sleep.

To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 4.0 in a 5 credit Math course 2.5 in a 3 credit Music course 2.7 in a 5 credit Chemistry course 3.3 in a 6 credit Journalism course What is the student's GPA for that term? Round to two decimal places Student's GPA =

Suppose the mean of Y is 99. What does the mean of X become if you multiply X by 1.37?  (Use two decimal places, ex: 12.34)

The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in F) for that month. The past year's usage and temperatures are in the following table: Usage/ Month Temp. 1000 Month 21 185.79 July. 24 214.47 Aug. 32 288.03 Sept. 47 424.84 Oct. 50 454.58 Nov. 59 539.03 Dec. Jan. Feb. Mar. Apr. May June Temp. 68 74 62 50 41 30 Identify which are the independent and dependent variables. Usage/ 1000 621.55 675.06 562.03 452.93 369.95 273.98

Can you solve for the p-value and is H0 rejected or not rejected?

Sean also took the SAT (μ=1010,σ=200) and had a z score of +0.25. What was his SAT raw score? What was his percentile?

To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 4.0 in a 5 credit Math course 2.1 in a 3 credit Music course 3.1 in a 5 credit Chemistry course 3.4 in a 4 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA =