The mean household income of mall shoppers is higher

Assignment Help Basic Statistics
Reference no: EM13519479

Translate each of the following research questions into approriate Ho and Ha.
A) census bureau data show that the mean household income in the area served by a shopping mall is $62,500 per year. A market research firm questions shoppers at the mall to find out whether the mean household income of mall shoppers is higher than that of the general population.
B) last year, your company's service technicians took an average 2.6 hours to respond to trouble calls from business customers who had purchased service contracts. Do this year's data show a different average response time?

Reference no: EM13519479

Questions Cloud

Discuss each of the pricing strategies below : Discuss each of the pricing strategies below. What conditions are necessary to make each strategy successful in terms of increasing profits? Explain your answer.
Study with three or more levels of independent variables : What is/are the advantage(s) of conducting a study with three or more levels of independent variables?
An important subcomponent of a medical device produced : An important subcomponent of a medical device produced by a manufacturing line is normally distributed with mean 70.2" and standard deviation is 1.26".
Find a 95% confidence interval for the mean weight : Find a 95% confidence interval for the mean weight of the population of all such runners, assuming that the population standard deviation is o=4.5 kg. Based on the confidence interval, does a test of Ho: u=61.3kg, Ha: u =/ 61.3kg
The mean household income of mall shoppers is higher : A) census bureau data show that the mean household income in the area served by a shopping mall is $62,500 per year. A market research firm questions shoppers at the mall to find out whether the mean household income of mall shoppers is higher..
The mean monthly rent for a random sample of 10 apartments : The mean monthly rent for a random sample of 10 apartments advertised in the local newspaper is $640. Assume that the standard deviation is $90. find a 95% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments ..
Use the following information to tfind the p-value : Use the following information to tfind the P-value
Quality has at least three categories of definitions : State the American Society for Quality’s definition of quality. Of the three "flavors" or categories of quality definitions, which type is it? Explain.
Human developmen : Human Developmen

Reviews

Write a Review

Basic Statistics Questions & Answers

  Sample space and probaabilities

Consider the situation where you have three game chips, each labeled with one of the numbers 5,6,& 7 in a hat:

  Accuracy of the interval without changing the confidence

For a random sample of 10 fifth generation iPod music players, the mean battery life  was 9.47 hours with a standard deviation of 2.14 hours.

  Computing sample mean-standard deviation

Consider the following data for two independent random samples taken from two normal populations. What is the 90% confidence interval estimate of the difference between the two population means?

  Formulating the author argument

The kinds of statistical methods that were used to formulate the author's argument.

  Information about quantitative reasoning for business

Please assist regarding an index based on how people feel about the economy. In this case, the base was 1985 and set at 100.

  Modelling using the poisson probability distribution

The number of hurricanes that are formed during each hurricane season can be modeled using the Poisson probability distribution.

  In a group lineup of 7 models

In a group lineup of 7 models in a commercial, 3 are male and 4 are female. In how many ways can you arrange 3 models in a lineup if the first and the third must be a male but the second one must be a female?

  How standard deviation influences outcome hypothesis test

Briefly describe how the standard deviation influences the outcome of the hypothesis test. How does standard deviation influence measures of effect size?

  Hypothesis testing on foundations of several buildings

Concrete blocks are to be used in the foundations of several buildings. The specifications state that the minimum arithmetic mean compressive strength of a sample of blocks must be 1,000 pounds per square inch (psi).

  Hypothesis for proportion

what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?

  Does sampling plan result in simple random sample

They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain.

  Find probability sample with mean greater

Find a mean of 24.8 with a standard deviation of 3.1 years. What is the probability that you will find another sample with a mean greater than 24.8 years.

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!

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