Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q1) According to American Express, it is hypothesized that average American has travelled to 8.4 states. WGN-TV felt this information was wrong. They did the survey of 22 Chicago area residents and found that they had travelled to the average of 6.5 states. Assume standard deviation for this problem was 1.1. Do 1-sample t-test to see if people in Chicago have travelled to fewer states than people nationwide. Utilize the 10% (.10) level of significance.
From information above, recognize these variables and their values:
X bar= ____________ µ= ____________ SD=____________
N = ____________ df= ____________ α= ____________
T= ____________ ... Use your table to find a critical value for "t".
T= ____________ ... Compute a test value for "t".
YES - NO (circle one) Do Chicagoans travel to significantly fewer states than people nationwide?
FORMULAE:
a) T = Mean Score (x bar) - Hypothesized value of population mean (µ) / SEM
b) SEM = SD/√n
c) df = n -1
Compute a 95% confidence interval for the mean using the formula and where is the mean of the ten random numbers.
If the mean times for both George and Julia are actually the same, what is the probability that George will be let go?
At a large department store, the amount a shopper spent and the shopper's gender (male or female) were recorded. To determine if gender is useful in explaining the amount of money a shopper spends at the store we could
How large should n be so that a 90% confidence interval for µ has a margin of error and What is the P-value for a test of the hypotheses
High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 180 individuals had their blood su..
Obtain the simple linear regression equation, then analyze the residuals by (a) constructing a histogram
Solve the equations using linear algebra
State the values of the coefficient of correlation and coefficient of determination correct to three decimal places
Answer the following three questions based on what you know about statistics now.
The data in the scatterplot below are an individual's weight and the time it takes (in seconds) on a treadmill to raise his or her pulse rate to 140 beats per minute. The o's correspond to females and the +'s to males.
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
We are interested in comparing the proportions of males and females who think earning a large salary is very important to them. I surveyed 200 of each gender and recorded their answers to the question as yes or no.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd