Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Please help with these 3 steps question 5a. [2 marks ] In Lucy's music academy, eight students took their piano diploma examination and achieved scores

image text in transcribed

Please help with these 3 steps question

image text in transcribed
5a. [2 marks ] In Lucy's music academy, eight students took their piano diploma examination and achieved scores out of 150. For her records, Lucy decided to record the average number of hours per week each student reported practising in the weeks prior to their examination. These results are summarized in the table below. Average weekly practice time (h) 28 13 45 33 17 29 39 36 Diploma score (D) 115 82 120 116 79 101 110 121 Find Pearson's product-moment correlation coefficient, r, for these data. 5b. [1 mark] The relationship between the variables can be modelled by the regression equation D = ah + b. Write down the value of a and the value of b. 5c. [2 marks] One of these eight students was disappointed with her result and wished she had practised more. Based on the given data, determine how her score could have been expected to alter had she practised an extra five hours per week

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Principles Of Topology

Authors: Fred H Croom

1st Edition

0486810445, 9780486810447

More Books

Students also viewed these Mathematics questions

Question

Did the researcher provide sufficient thick description?

Answered: 1 week ago