Mathematics, 04.08.2020 14:01 savannabroyhill24
The amount people who pay for cell phone service varies quite a bit, but the mean
monthly fee is $55 and the standard deviation is $22. The distribution is not Normal.
Many people pay about $30 for plans with 2GB data access and about $60 for 5GB of
data access, but some pay much more for unlimited data access. A sample survey is
designed to ask a simple random sample of 1,000 cell phone users how much they pay.
Let be the mean amount paid.
Part A: What are the mean and standard deviation of the sample distribution of x with line on top?
Show your work and justify your reasoning.
Part B: What is the shape of the sampling distribution of the mean of the sample? Justify your answer.
Part C: What is the probability that the average cell phone service paid by the sample
of cell phone users will exceed $56? Show your work.
Answers: 2
Mathematics, 21.06.2019 14:30, jadaroyval
Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.
Answers: 1
Mathematics, 22.06.2019 01:00, chandranewlon
Ellie spent $88.79 at the computer stote. she had $44.50 left to buy a cool hat. how much money did she originally have? write and solve an equation to answer the question.
Answers: 2
The amount people who pay for cell phone service varies quite a bit, but the mean
monthly fee is $5...
Biology, 07.05.2020 04:03
History, 07.05.2020 04:03
History, 07.05.2020 04:03
Computers and Technology, 07.05.2020 04:03