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!
An internal report issued by the marketing manager of a oil-change franchise claims that the mean number of miles between oil changes is for franchise customers is at least 3600 miles. One franchise owner suspects that the mean distance is actually less than 3600 miles. She collects a random sample of 10 customers, and determines the distance each had driven between oil changes. She finds the following results.
3655 3734 3700 1946 3208
3311 2789 3920 3555 3902
a) Construct a stem-and-leaf diagram.
b) Does your stem-and-leaf diagram in (a) suggest that the distribution of distances is not normal? (For instance, is there any evidence that the distribution is skewed?)
c) Construct TWO 99% confidence intervals.
(i) Use the z-tables.
(ii) Use the t-tables.
d) Interpret your result in (ii) in words.
e) You now must decide: is the mean distance between oil changes 3600 miles, or not? Explain your reasoning.
f) Which (if either) of the confidence intervals in (c) is appropriate? (Suggestion: look at your answer to (b).) Explain briefly.
what is the relationship between the variance and the standard deviation?
How do I find the mean when the question is in a table format?2 rows with 8 columns, Do I name them X and Y then do them?
Write a report to an investor comparing the performance by using the financial statements between two different companies
The research should be Quantitative Research: A means for testing objective theories by examining the relationship among variables. These variables can be measured and analyzed
Consider a multiple regression model Y=ß0+ß1X1+ß2X2+µ The sample data yields the following matrices: X’X= { ¦(33&0&0@0&40&0@0&20&60) } Y’X=¦((132&24&92)) ?(y-Y)2 =150 a. what
what i6 the relevance of cost classification?
standard material qty per unit- 2 kg standard price per kg - 4 rs actual value of material purchased- 4000 rs closing stock- 200 kg actual usage- 2.5 kg finished stock sold- 200 u
Definition of budget control as management of costs & expenses with examples. Budget control is the management of costs & expenses in accordance with an underlying budget.
Mode Mode, M is the value that has the largest number of occurrence or frequency in a data set, for instance, given the following data: 11 15 16 12 15 19 17 15 we can se
A prevent of huge m = 10 kg is drawn by a power F = 100 N at a position q = 30o with the horizontally along a sleek horizontally exterior. What is the speed of the block? (g = 10 m
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd