Mathematics, 19.02.2021 01:00 igocrazy594
PLS SOMEONE HELP WITH THIS STATS PROBLEM
The distribution of pH levels for all community swimming pools in a large county is approximately Normal with mean 7.5 and standard deviation 0.2. According to swimming pool studies, the safest pH levels for water in swimming pools are between 7.2 and 7.8.
The county health inspector will select a random sample of 4 community swimming pools in the county to investigate the pH levels.
(b) Describe the sampling distribution of the sample mean for samples of size 4 (shape, center, and spread).
(c) Consider the situation in which the health inspector find the sample mean of the 4 pools to be outside the safe pH levels. As a result, the inspector declares that the population mean is not 7.5. However, if the population mean really is 7.5, the inspector will have made an error. Such an error is called a Type I error. Find the probability that the inspector will make a Type I error with the sample of 4 pools. Show your work.
Answers: 3
Mathematics, 21.06.2019 16:50
Line l passes through points (0,4) and (3,6) what is the slope of a line that is parallel to line l -2/3 -3/2 2/3 3/2
Answers: 1
Mathematics, 21.06.2019 19:30
Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?
Answers: 3
Mathematics, 22.06.2019 00:30
Jaxon has s packs of 8 crazy straws. he divided the crazy straws into 2 equal bags. now, he has 224 crazy straws in each bag. how many packs of crazy straws did jaxon start with?
Answers: 1
Mathematics, 22.06.2019 03:20
Given a normal distribution with µ=20 and σ = 4, what is the probability that x> 24 x< 24 x< 24 or x> 24
Answers: 2
PLS SOMEONE HELP WITH THIS STATS PROBLEM
The distribution of pH levels for all community swimming p...
Chemistry, 24.06.2019 22:30
Social Studies, 24.06.2019 22:30
Biology, 24.06.2019 22:30
Mathematics, 24.06.2019 22:30
History, 24.06.2019 22:30