Evaluate the formula z equals Start Fraction x overbar minus mu Over Start Fraction sigma Over...
Evaluate the formula z equals Start Fraction x overbar minus mu Over Start Fraction sigma Over Start Root n End Root End Fraction End Fraction z= x−μ σ n when mu μ equals = 118, n = 22, x overbar x equals = 123, and sigma σ equals = 2 2. z = nothing (Round to three decimal places as needed.)
Homework Answers
Solution :
=
118
= 123
= 2.2
n = 22
Using z-score formula,
z = (
- 
) /
/ 
n
z = (123 - 118) / 2.2 /
22
z = 10.660
Add Answer to:
Evaluate the formula z equals Start Fraction x overbar minus mu
Over Start Fraction sigma Over...
Determine mu Subscript x overbar μx and sigma Subscript x overbar σx from the given parameters...
Determine mu Subscript x overbar μx and sigma Subscript x overbar σx from the given parameters of the population and sample size. μ equals=79, sigma σ equals=18 n equals=81
To construct a confidence interval for the difference between two population means mu 1 minus mu...
To construct a confidence interval for the difference between two population means mu 1 minus mu 2, use the formula shown below when both population standard deviations are known, and either both populations are normally distributed or both n 1 greater than or equals 30 and n 2 greater than or equals 30. Also, the samples must be randomly selected and independent. left parenthesis x overbar 1 minus x overbar 2 right parenthesis minus z Subscript c Baseline StartRoot StartFraction...
Given a normal distribution with mu μ equals = 101 101 and sigma σ equals =...
Given a normal distribution with mu μ equals = 101 101 and sigma σ equals = 25 25, and given you select a sample of n equals = 25 25, complete parts (a) through (d). d. There is a 64 64% chance that Upper X overbar X is above what value?
Evaluate the following formula for ModifyingAbove p with caret 1 equals0.5 , ModifyingAbove p with caret...
Evaluate the following formula for ModifyingAbove p with caret 1 equals0.5 , ModifyingAbove p with caret 2 equals0.8 , p 1 minusp 2equals 0, p overbar equals0.835496 , q overbar equals0.273634 , n 1 equals60 , and n 2 equals64 . z equals StartFraction left parenthesis ModifyingAbove p with caret 1 minus ModifyingAbove p with caret 2 right parenthesis minus left parenthesis p 1 minus p 2 right parenthesis Over StartRoot StartFraction p overbar times q overbar Over n 1...
Assume the random variable x is normally distributed with mean mu equals 50 μ=50 and standard...
Assume the random variable x is normally distributed with mean mu equals 50 μ=50 and standard deviation sigma equals 7 σ=7. Find the indicated probability. Upper P left parenthesis x greater than 37 right parenthesis P(x>37) Upper P left parenthesis x greater than 37 right parenthesis P(x>37) equals = nothing (Round to four decimal places as needed.)
Consider the hypotheses shown below. Given that x overbar= 48 ,sigma=13 , n=33, alpha=0.10 , complete...
Consider the hypotheses shown below. Given that x overbar= 48 ,sigma=13 , n=33, alpha=0.10 , complete parts a and b. Upper H 0: mu less than or=45 Upper H 1: mu greater than 45 a. What conclusion should be drawn? b. Determine the p-value for this test. a. The z-test statistic is . (Round to two decimal places as needed.)
Consider the hypotheses shown below. Given that x overbar= 40 ,sigma=11 ,n=33, alpha=0.10 , complete parts...
Consider the hypotheses shown below. Given that x overbar= 40 ,sigma=11 ,n=33, alpha=0.10 , complete parts a and b. Upper H 0 : mu less than or=38 Upper H 1: mu greater than38 a. What conclusion should be drawn? b. Determine the p-value for this test. a. The z-test statistic is . (Round to two decimal places as needed.) The critical z-score(s) is(are) . (Round to two decimal places as needed. Use a comma to separate answers as needed.) Because...
Consider the hypotheses below. H0: μ=50 H1: μ≠50 Given that x overbar equals x=51,s=10,n=25,and alpha equals=0.05,...
Consider the hypotheses below. H0: μ=50 H1: μ≠50 Given that x overbar equals x=51,s=10,n=25,and alpha equals=0.05, answer the questions below. a. What conclusion should be drawn? b. Use technology to determine the p-value for this test. a. Determine the critical value(s). The critical value(s) is(are) nothing. (Round to three decimal places as needed. Use a comma to separate answers as needed.) Determine the test statistic, (Round to two decimal places as needed.) What conclusion should be drawn? Choose the correct...
A simple random sample of size n=64 is obtained from a population that is skewed right...
A simple random sample of size n=64 is obtained from a population that is skewed right with μ=81 and σ=24. (a) Describe the sampling distribution of x overbarx. (b) What is Upper P left parenthesis x overbar greater than 84.15 right parenthesisP x>84.15? (c) What is Upper P left parenthesis x overbar less than or equals 73.65 right parenthesisP x≤73.65? (d) What is Upper P left parenthesis 78.6 less than x overbar less than 87.15 right parenthesisP 78.6<x<87.15? (a) Choose...
Time spent using e-mail per session is normally distributed, with mu equals μ=9 minutes and sigma...
Time spent using e-mail per session is normally distributed, with mu equals μ=9 minutes and sigma equals σ=2 minutes. Assume that the time spent per session is normally distributed. Complete parts (a) through (d). a. If you select a random sample of 25 sessions, what is the probability that the sample mean is between 8.8 and 9.2 minutes? (Round to three decimal places as needed.) b. If you select a random sample of 25 sessions, what is the probability that...
Most questions answered within 3 hours.
-
The Problem: The Case of the Harmonizing Vacations
Your CEO is exploring partnering with a European...
asked 42 minutes ago -
A chemical equation is balanced by adding coefficients in front
of some formulas so that the...
asked 40 minutes ago -
From the literature (reference your sources): What are the
lattice parameters of calcite and aragonite? Why...
asked 1 hour ago -
Your system is rejecting the question am asking which is
preceded by a case study. It...
asked 1 hour ago -
3. On January 2, 2000, Larry creates a trust with himself as
trustee. Larry as trustee...
asked 1 hour ago -
A member of the volleyball team spikes the ball. During this
process, she changes the velocity...
asked 1 hour ago -
Are adult gamers less likely to use a gaming console (Xbox,
PlayStation, Wii, etc...) than teen...
asked 2 hours ago -
The University of
Texas recently reported that 43% of college students aged 18-24
would spend their...
asked 2 hours ago -
The length of stay at a specific emergency department in
Phoenix, Arizona, in 2009 had a...
asked 1 hour ago -
. Please give the mechanism for this type of problem. Step by
Step
The toxin that...
asked 1 hour ago -
If you have a 1M stock solution and you want to dilute 1 :10
with water,...
asked 1 hour ago -
In a load instruction, the effective address is obtained by
A) Retriving the address from a...
asked 1 hour ago