The price paid for a new phone of a particular model follows a Normal distribution with mean μ=750 and standard deviation σ= 42. What proportion of these phones are purchased for more than 821 dollars? Give your answer to four decimal places.
The price paid for a new phone of a particular model follows a
A study of 25 online jewelry retailers was done to find the statistical relationship between the price yyin dollars of a diamond ring and the weight xxin carats of the diamond. Based on this data the following least-squares regression line was found:
y^=−6047.75+11975.14x
What is the predicted price of diamond ring a 2.2 carat diamond using this regression line. Round your answer to two decimal places.
A study of 25 online jewelry retailers was done to find the statistical relationship between the price yy in dollars of a diamond ring and the weight xx in carats of the diamond. Based on this data the following least-squares regression line was found:
y^=−6047.75+11975.14x
One online retailer sells a 3.00 carat diamond ring for 28,999 dollars. What is the residual (error) for the predicted price of a 3.00 carat diamond ring? Give your answer to two decimal places.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
