Question
In: Statistics and Probability
Suppose you are going to randomly sample one individual from a population of 130 people. In...
Suppose you are going to randomly sample one individual from a population of 130 people. In the population, there are 40 children 12 or younger, 60 teenagers, and 30 adults age 20 or older. What is the probability the individual you select will be...
a. Either a teenager or an adult?
b. Either a child or a teenager?
c. Either a child or an adult?
Solutions
Expert Solution
The detailed solution is given in the pictures below.
Please go through them carefully specially the notations.
Hope the solution helps. Thank you.
(If you need further help please comment)
orchestra answered 1 year agoRelated Solutions
Suppose you are going to randomly sample one individual from a population of 130 people. In...
Suppose you are going to randomly sample one individual from a
population of 130 people. In the population, there are 40 children
12 or younger, 60 teenagers, and 30 adults age 20 or older. What is
the probability the individual you select will be...
4a. Either a teenager or an adult? (2 Points)
4b. Either a child or a teenager? (2 Points)
4c. Either a child or an adult? (2 Points)
A random sample of size n = 130 is taken from a population with a population...
A random sample of size n = 130 is taken from a
population with a population proportion p = 0.58.
(You may find it useful to reference the z
table.)
a. Calculate the expected value and the
standard error for the sampling distribution of the sample
proportion. (Round "expected value" to 2 decimal places and
"standard error" to 4 decimal places.)
b. What is the probability that the sample
proportion is between 0.50 and 0.70? (Round “z”
value to 2...
Suppose that we will randomly select a sample of 64 measurements from a population having a...
Suppose that we will randomly select a sample of 64 measurements
from a population having a mean equal to 18 and a standard
deviation equal to 5. (a) Describe the shape of the sampling
distribution of the sample mean Picture. Do we need to make any
assumptions about the shape of the population? Why or why not? ; ,
because the sample size is . (b) Find the mean and the standard
deviation of the sampling distribution of the sample...
9) In a sample of 400 people selected randomly from one town, it is found that...
9) In a sample of 400 people selected randomly from one town, it
is found that 130 of them are Gamecock Fans. At the 0.05
significance level, test the claim that the proportion of all
people in the town who are Gamecock fans is 27%.
A] What type of statistical test can be used
here?
a. Z-test of proportions
c. F
Test
e. Either c2 or λ Test
b. a-Test of
proportions
d. Either T or
F-Test
f. T-Test...
A population proportion is 0.57. Suppose a random sample of 663 items is sampled randomly from...
A population proportion is 0.57. Suppose a random sample of 663
items is sampled randomly from this population.
a. What is the probability that the sample
proportion is greater than 0.59?
b. What is the probability that the sample
proportion is between 0.52 and 0.59?
c. What is the probability that the sample
proportion is greater than 0.55?
d. What is the probability that the sample
proportion is between 0.52 and 0.53?
e. What is the probability that the sample...
A population proportion is 0.59. Suppose a random sample of 663 items is sampled randomly from...
A population proportion is 0.59. Suppose a random sample of 663
items is sampled randomly from this population. Appendix A
Statistical Tables a. What is the probability that the sample
proportion is greater than 0.60? b. What is the probability that
the sample proportion is between 0.54 and 0.64? c. What is the
probability that the sample proportion is greater than 0.57? d.
What is the probability that the sample proportion is between 0.52
and 0.55? e. What is the...
A population proportion is 0.60. Suppose a random sample of 660 items is sampled randomly from...
A population proportion is 0.60. Suppose a random sample of 660
items is sampled randomly from this population. Appendix A
Statistical Tables a. What is the probability that the sample
proportion is greater than 0.62? b. What is the probability that
the sample proportion is between 0.56 and 0.62? c. What is the
probability that the sample proportion is greater than 0.59? d.
What is the probability that the sample proportion is between 0.58
and 0.59? e. What is the...
A population proportion is 0.59. Suppose a random sample of 661 items is sampled randomly from...
A population proportion is 0.59. Suppose a random sample of 661
items is sampled randomly from this population.
a. What is the probability that the sample proportion is greater
than 0.60?
b. What is the probability that the sample proportion is between
0.57 and 0.60?
c. What is the probability that the sample proportion is greater
than 0.57?
d. What is the probability that the sample proportion is between
0.53 and 0.56?
e. What is the probability that the sample...
A random sample of 130 observations produced a mean of ?⎯⎯⎯=36.1x¯=36.1 from a population with a...
A random sample of 130 observations produced a mean of
?⎯⎯⎯=36.1x¯=36.1 from a population with a normal distribution and a
standard deviation σ=4.87.
(a) Find a 95% confidence interval for μ
≤ μ ≤
(b) Find a 99% confidence interval for μ
≤ μ ≤
(c) Find a 90% confidence interval for μ
≤ μ ≤
Fifteen people were randomly selected from the population and randomly assigned to 1 of 3 experimental...
Fifteen people were randomly selected from the population and
randomly assigned to 1 of 3 experimental groups. Group 3 was
included as the control group and did not receive any treatment.
Use the following data set to answer the questions.
Group 1
Group 2
Group 3
21
25
32
53
54
41
44
26
86
72
32
75
Is there a significant difference (α=0.05) between at
least two groups?
A.
Yes
B.
No
C.
Not possible to determine
D.
Alpha...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- JAVA If a user inputs a specific number of rows, columns and sections for a rectangle...
- A stock costs $80 and pays a $4 dividend each year for three years. a) If...
- A solid cylinder, mass of 15 kg, is on a hill that is inclined at a...
- Discuss the difference between a)FAT, FAT32, NTFS, CDFS, etc., b)What make them diferent and why they...
- 2. Given the Instruction sets for Machine-1, Machine-2 and Machine-3, write programs to calculate: P= ((B×C)...
- Problem III. Suppose that, in a market of a certain good, there are firms that are...
- discusses the difference between public relations and advertising. Cite an organization or individual and give one...
ADVERTISEMENT