A random sample of discount prices gives the following

Assignment Help Basic Statistics
Reference no: EM13578040

The mean price to buy two of the medicines was $267.00 in 2006. A random sample of discount prices gives the following prices: 221, 286, 290, 330, 310, 250, 270, 280, 299, 265, 291, 275, and 281. At one percent level of significance, can you conclude that the mean fare has increased?

Reference no: EM13578040

Questions Cloud

In a statistical test the probability of making type i and : in a statistical test the probability of making type i and type ii error were found to be 0.0234 and 0.6 respectively.
If we are testing for the difference between the means of 2 : if we are testing for the difference between the means of 2 related populations with samples of n1 20 and n2 20 the
Under what circumstances should you use a grouped frequency : under what circumstances should you use a grouped frequency distribution instead of a regular frequency
If 10 employed women are selected at random what is the : according to government data 25 of employed women have never been married.a if 10 employed women are selected at
A random sample of discount prices gives the following : the mean price to buy two of the medicines was 267.00 in 2006. a random sample of discount prices gives the following
When 325 college students are randomy selected and : when 325 college students are randomy selected and surveyed its found that 117 own cars. construct a 99 confidence
Suppose the probability distribution x number of jobs held : suppose the probability distribution x number of jobs held during the past year for students at hfcc is as followsx 0
The concept of type i and type ii error is critical and : the concept of type i and type ii error is critical and will come into play with each and every statistical test you
The following frequency distribution presents a set of exam : the following frequency distribution presents a set of exam scores for a class of n 20 students. what is the

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find confidence interval of true mean weight of wrestlers

Find the 90% confidence interval of the true mean weight of all college wrestlers. If a coach claimed that the average weight of the wrestlers on the team was 310, would the claim be believable?

  Confidence interval of the mean number of er patients

Find the 95% confidence interval of the mean number of ER patients treated each day at the hospital.

  Calculate the z score for a raw score

Calculate the z score for a raw score of 10 from the folowing scores:10,20,25,5,30. Based on your anser , approximately what percentile does the raw score of 10 represent?

  Confidence interval-proportion of adults approve candidate

An election poll reported that a candidate has an approval rating of 54% with a margin of error of 4%. Construct a confidence interval for proportion of adults who approve of the candidate.

  Find z-score for student-indicate better relative position

Find the z-score for each student and indicate which one has a better relative position. An Art Major earned a grade of 46 on an exam with = 50 and s = 5.

  Calculating the sample size needed to estimate a population

After calculating the sample size needed to estimate a population proportion to within 0.04, your statistics professor told you the maximum allowable error must be reduced to just .01. If the original calculation led to a sample size of 800, the s..

  Hypothesis testing five step approach

A medical researcher estimates that no more than 55% of U.S. adults eat breakfast every day. In a random sample of 250 U.S. adults, 56.4% say they eat breakfast every day.

  Application of chebyshev inequality

In an exam, the mean score is 70 and the variance is 16. What is the probability that a student's score will lie within the "54 to 86" range?

  Computing the correlation coefficient for given data

One of the most important uses of a correlation is its potential use in_________

  Preventable health care-related errors cost

The Agency for Healthcare Research and Quality reports that medical errors are responsible for injury in 1 out of every 25 hospital patients in the United States. These errors are tragic and expensive. Preventable health care-related errors cost t..

  Probability that sum of numbers on upper faces dice is seven

List the sample space in S and determine the number simple events. What is the probability that the sum of the numbers shown on the upper faces is equal to 7?

  Are the data consistent with the model

Test for single Proportion - Are the data consistent with the model? Answer yes or no, and explain briefly.

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