![aasiarobinson998](/avatars/39318.jpg)
aasiarobinson998
15.07.2020 •
Mathematics
Fizzy Waters promotes their alkaline water product for everyone on the basis that alkaline water is good for health as it neutralizes acids produced in the body. They boast having a mean alkalinity level of 50 mg/liter. Alkaline water has a higher pH level than regular drinking water and Fizzy Waters claims that its higher Hydrogen content provides better hydration than regular water. To test their claim, you contact Fizzy Waters and they allow you to collect samples from their manufacturing plant to test for yourself. You collect 100 random samples of their alkaline water and find that the mean and standard deviation are y = 32.2mg/liter and 14.4mg/liter. With 99% confidence, is there enough evidence to support their claim that the population mean exceeds 50 mg/liter?
Solved
Show answers
More tips
- F Family and Home Daughter says: If you don t want to do it, don t do it. Should we persuade her?...
- H Health and Medicine How Did Inna Lose Weight on Dom 2?...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Mathematics
- M Mathematics Cole and his friends made a line plot of the hours they spend watching television after school. Which is the difference between the greatest amount of time spent...
- M Mathematics Two points on the graph of a function are used to determine the average rate of change over the interval between them. calculate the average rate of change for...
- M Mathematics How would the graph of y = x2 + 6 be affected if the 6 in the function was changed to a 2? a.the graph would shift 2 units up. b. the graph would shift 4 units...
- M Mathematics Give the number of significant figures: 832,000 km...
- M Mathematics The number of pepperoni slices that kim puts on a pizza varies directly as the square of the diameter of the pizza. if she puts 15 slices on a 10 diameter pizza,...
- M Mathematics Solve: -10(x - 1) = 10 - 10x a) no solution b) x = -1 c) x = 0 d) infinitely many solutions...
- M Mathematics Write each equation in standard form. y+1=4/5(x-3) y-8= -1/2(x+4)...
- M Mathematics The perimeter is 28cm. find the area of the shaded section...
- M Mathematics Find the other endpoint of a line segment with one endpoint at (-3, 5) and whose midpoint is (5, 2). (7, 2) (1, 7/2) (13, -1)...
- M Mathematics Estimate with one digit 6/253...
Ответ:
The mean of 50 mg/liter is not inside the 99% interval, so there is not enough evidence to support their claim.
Step-by-step explanation:
First we need to find the z-value for a confidence of 99%
The value of alpha for a 99% confidence is:
Looking in the z-table, we have z = 2.575.
Now we can find the standard error of the mean:
Finding the 99% confidence interval, we have:
The mean of 50 mg/liter is not inside the 99% interval, so there is not enough evidence to support their claim.
Ответ:
where are u getting it from
Step-by-step explanation: