subject
Mathematics, 05.05.2020 06:21 Emiann222

A consumer product magazine recently ran a story concerning the increasing prices of digital cameras. The story stated that digital camera prices dipped a couple of years ago, but now are beginning to increase in price because of added features. According to the story, the average price of all digital cameras a couple of years ago was $215.00. A random sample of n = 22 cameras was recently taken and entered into a spreadsheet. It was desired to test to determine if that average price of all digital cameras is now more than $215.00. Find a rejection region appropriate for this test if we are using Ξ± = 0.05.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 20:30
Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [βˆ’1, 1] no, f is continuous on [βˆ’1, 1] but not differentiable on (βˆ’1, 1). no, f is not continuous on [βˆ’1, 1]. yes, f is continuous on [βˆ’1, 1] and differentiable on (βˆ’1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.
Answers: 1
question
Mathematics, 21.06.2019 22:00
Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.
Answers: 2
question
Mathematics, 21.06.2019 22:20
Factor the polynomial. b^2 + 4b + 4
Answers: 2
question
Mathematics, 22.06.2019 01:30
Sara is flying a kite at the park. the angle of elevation from sara to kite in the sky is 53Β° and the length of the string is 32 feet. of sara is 5 feet tall how far off the ground is the kite
Answers: 1
You know the right answer?
A consumer product magazine recently ran a story concerning the increasing prices of digital cameras...
Questions
question
Mathematics, 07.05.2020 07:02
Questions on the website: 13722367