Perform a two-tailed hypothesis test

Assignment Help Basic Statistics
Reference no: EM131555199

We would like to perform a two-tailed hypothesis test about mean at significance level of 0.05. The test statistic is already calculated for us, and the value is 2.1. We know that there are 25 observations in the random sample. The population is normally distributed, but the population standard deviation is unknown. What is the P-value? Do we have sufficient evidence to reject the null hypothesis? Why? Please show work.

Reference no: EM131555199

Questions Cloud

Find each projects net present value and results suggest : find each projects net present value and explain what the results suggest. find each project's profitablity index and explain what the results suggest
What are some of your favorite tv and internet ads and why : What are some of your favorite TV and Internet ads? Why? How effective are message and creative strategies? What is different between TV and online advertising?
How the character behaviors and actions relate to the theme : Analyze at least two characters and identify one theme. Talk about how the character's behaviors and actions relate to the theme
Compute the probability of each of the given events : An ordinary (fair) die is a cube with the numbers1through6on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession.
Perform a two-tailed hypothesis test : We would like to perform a two-tailed hypothesis test about mean at significance level of 0.05. The test statistic is already calculated for us, and the value.
What if the new product type is not a success : What if the new product type is not a success? How might this impact the brand image, share and example. Further thoughts please. (150 words and 1 reference).
Significance of this correlation coefficient : Of the 41 males and females, the daily number of servings of soda consumed and the daily amount of hours exercised were compared to find r=-0.698.
How many hours does someone have to work to pay that premium : GMO-free soybeans cost about $2 per bushel more than GMO soybeans. How many hours does someone have to work to pay that premium in the U.S.
What are the worst-case and best-case NPVs : What are the worst-case and best-case IRRs? What are the worst-case and best-case NPVs?

Reviews

Write a Review

Basic Statistics Questions & Answers

  What decision should director make about course book

Based on the information in part (a), what decision should the director make about the books used for the courses if the goal is to keep the cost below $300?

  Best step response while attaining a high

A robot tennis player is shown in Figure DP9.4 (a), and a simplified control system for θ2(t) is shown in Figure DP9.4(b).The goal of the control system is to attain the best step response while attaining a high Kv for the system.

  How statistical application of pearson-used for hypothesis

Discuss how the statistical application of Pearson r is used for hypothesis testing. Through application of the Spearman Correlation discuss what type of data the Pearson formula can be used for.

  The average number of phone calls at a particular phone

the average number of phone calls at a particular phone booth is 6 per hour. if someone arrives immediately ahead of

  Given are five observations collected in a regression study

given are five observations collected in a regression study on two variables.x12691320y1718926231. what percentage of

  What is the probability that the smaller of these values

Suppose distinct values are written on each of three cards, which are then randomly given the designations A, B, and C . The values on cards A and B are then compared. What is the probability that the smaller of these values is also smaller than t..

  What does the box plot tell you about given data

For the data given problem, construct a box plot. What does the box plot tell you about these data?- Construct a stem-and-leaf display of these data. What does the display tell you about the data?

  With a z score of 1.5 what percentage often scores are

With a z score of 1.5, what percentage often scores are above 52 and what percentage of the scores are above 60?

  Determine whether the mean dominance ratings differ

Conduct an analysis of variance to determine whether the mean dominance ratings differ among the six facial expressions. Use α = .10.

  Evaluating confidence interval

In random, independent samples of 250 adults and 375 teenagers who watched a certain television show, 147 adults and 228 teens indicated that they liked the show.

  How effective are photo red enforcement programs

In these programs, red light cameras installed at dangerous intersections photograph the license plates of vehicles that run the red light. How effective are photo-red enforcement programs in reducing red light-running crash incidents at intersect..

  Represents the dependent variable

The following statistics were calculated from pairs of observations where X represents the independent variable and Y represents the dependent variable.

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