User Account

All Pages

A random sample of 100 credit sales in a department store

Assignment Help Basic Statistics
Reference no: EM13584687

A random sample of 100 credit sales in a department store showed an average sale of $120.00. From past data, it is known that the standard deviation of the population is $40.00.

a. Determine the standard error of the mean.

b. With a 0.95 probability, determine the margin of error.

c. What is the 95% confidence interval of the population mean?

Reference no: EM13584687

Questions Cloud

The invoice indicated a trade discount of 583 the seller : mels furniture received an invoice dated september 27 for five bedroom sets at 3000 each. the invoice indicated a
Te court awarded 13000 and 8000 respectively to the two : jim smith who lives in territory 5 carries 10205 compulsory liability insurance along with optional collision that has
A random sample of 81 children with working mothers showed : a random sample of 81 children with working mothers showed that they were absent from school an average of 6 days per
A what is the specific biomass production rate gl-h b if : consider a 1000l cstr in which biomass is being produced with glucose as the substrate. the microbial system follows a
A random sample of 100 credit sales in a department store : a random sample of 100 credit sales in a department store showed an average sale of 120.00. from past data it is known
The rate of interest is 11 on a 25 year mortgage what : a condo is advertised in the wall street journal for 350000.it states in the ad that a 20 down payment is required.
Determine a 95 confidence interval estimate for the mean : in order to determine the average weight of carry-on luggage by passengers in airplanes a sample of 16 pieces of
On day 45 lisa paid 1000 on the note what is the total : lisa kane borrowed8000 on an 8 60 day note. after fifteen days lisa paid 2000 on the note. on day 45 lisa paid 1000 on
Unlike materials energy into and then out of ecosystems : 1 unlike materials energy into and then out of ecosystems. energy enters the biosphere as solar energy from the sun.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Expectation based on national cance-incidence rates

Twelve case of leukemia are reported in people living in a particular census tract over a five year period. Is this number of cases abnormal if only 6.7 cases would be expected based on national cance-incidence rates?

  How a probability value is related to the normal curve

Then, define probability value in your own words and explain how a probability value of .05 in this example is related to the normal curve.

  Descriptive statistics-determining the mean using given data

Find out the mean to the nearest whole number, for the following list of numbers: 20, 43, 67, 52, 67, 44, 62, 90, 21, 19, 15

  I am conducting a ring test where 6 laboratories were asked

I am conducting a ring test where 6 laboratories were asked to measure protein levels in the same flour sample. I then calculated the z score for each of their results

  The following are mood scores for 12 participants before

the following are mood scores for 12 participants before and after watching a funny video clip higher values indicate

  Math discussion questions

Your friend is taking an algebra class that began one week after ours. Explain to your friend how to graph linear inequalities with two variables. Include at least two examples.

  What neurological disorder disease or accident took place

selectnbspa well documented historical case study of an individual who experienced a neurological disorder disease or

  Q1-write introduction to spc statistical process

q1-write introduction to spc statistical process control?q2-describe the use of spc tools used at d2d?q3-how could

  Where temp is temperature find how much she is expected to

question 1 the temperature in january is estimated to have a mean of 34 and a standard deviation of 6 in degrees

  Statistics-quantitatitve methods-probability

Downhill Ski Resort in Colorado has accumulated information from records of the past 30 winters regarding the measurable snowfall. This information is as follows:

  Hypothesis testing using z test for proportion

Professor Jennings claims that 35% of the students at Flora College work while attending school. Dean Renata thinks that the professor has underestimated the number of students with part time or full time jobs. A random sample of 81 students shows..

  What is the forecast for week 7

Consider the following time series data.Week 1 2 3 4 5 6Value 18 13 16 11 17 14Using the naive method (most recent value) as the forecast for the next week

Free Assignment Quote

Assured A++ Grade

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd