Mathematics, 07.04.2021 01:00 tfhdg
A drug store chain provides an app to its customers to track their shopping habits. One statistic the app
tracks is the amount of money the customer saves by purchasing sale items. The company's sales
team pulls data from the previous year for a random sample of 50 customers. They find that the
mean amount of money saved by these customers in the previous year is $154 with a standard
deviation of $26.
(a) Construct a 99% confidence interval for the true mean amount of money saved by all customers
in the previous year by purchasing sale items.
(b) The sales team would like to repeat this study with the goal of obtaining a smaller margin of
error. Propose two changes that would decrease the margin of error. What are potential
drawbacks if those changes are implemented?
Answers: 1
Mathematics, 21.06.2019 17:00
The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles
Answers: 3
Mathematics, 21.06.2019 18:30
The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.
Answers: 3
Mathematics, 21.06.2019 19:00
The reflexive property of congruence lets you say that ∠pqr ≅
Answers: 1
Mathematics, 21.06.2019 23:50
Which function has the domain x> -11? y= x+ 11 +5 y= x-11 +5 y= x+5 - 11 y= x+5 + 11
Answers: 2
A drug store chain provides an app to its customers to track their shopping habits. One statistic th...
Spanish, 31.07.2019 15:00
Physics, 31.07.2019 15:00
Social Studies, 31.07.2019 15:00
Spanish, 31.07.2019 15:00
Spanish, 31.07.2019 15:00
Physics, 31.07.2019 15:00
Spanish, 31.07.2019 15:00
Physics, 31.07.2019 15:00
Physics, 31.07.2019 15:00