Perform hypothesis test using a significance level

Assignment Help Basic Statistics
Reference no: EM13114500

Company compared the performance of two temperature instruments: one coupled to a process computer and the other used for visual control. Ideally, these two instruments should agree. The following data are the two temperatures over a five day period:

Day 1 2 3 4 5
Temp 1 84.6 84.5 84.4 84.6 84.3
Temp 2 85.2 85.1 84.9 85.3 85

a. Conduct the most appropriate hypothesis test using a 0.05 significance level to determine if there is a statistically significant difference between the reading of both instruments.

b. Construct a 95% confidence interval for the true mean difference in temperature readings.

Reference no: EM13114500

Questions Cloud

How old is the artifact : You are given a worked wooden item from an archaeological dig believed to date to during the last glaciation. As such, the artifact would be another piece of evidence.
What is the general trend in plant evolution : What were the key innovations that allowed adaptive radiation of modern plants? Why are bryophytes considered to be primitive plants? Why do bryophytes and ferns need water for reproduction?
Breakeven point for managerial accounting : Compute the breakeven point for two product lines. Scotty's Scooters plans to sell a standard scooter for $40 and a chrome scooter for $50. Scotty's purchases the standard scooter for $25 and the chrome scooter for $30.
Explain shipping cost from china to davao : Explain shipping cost from china to davao is $ 1.00 per unit , while shipping cost from manila to davao is #0.25 per unit. Considering both labor and transportation cost
Perform hypothesis test using a significance level : Conduct the most appropriate hypothesis test using a 0.05 significance level to determine if there is a statistically significant difference between the reading of both instruments.
Illustrate what issues are likely to arise in a country : Illustrate what issues are likely to arise in a developing country when a global giant like Coca-Cola begins operations there and what kinds of advantages does such an expansion bring to the globalizing organization?
Percentage change in shareholder wealth : Facebook sold shares to investors at $38 each in its IPO. One year later, its stock price was hovering around $26. What was the percentage drop in Facebook shares in its first year as a public company?
Find the stone''s density : 25.2 mL of qater are placed in a graduated cylinder. A 22.6 g stone is dropped in, and the water level rises to 32.4 mL. Find the stone's density.
Why do many people oppose the insertion of genes : Why do many people oppose the insertion of genes into human patients to cure them of genetic disease ("gene therapy")?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-hypothesis testing-analysis

The mean construction time for a standard two-car garage by Arrowhead Construction Company is 3.5 days. The time for the construction process follows the normal distribution.

  Estimate of investment earnings

Joe is being audited by the IRS and must provide an estimate for his investment earnings over the next four years. After a thorough search, Joe can only find the following records.

  Determining z test for proportion

A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 60%.

  Probability in random selection

A recent census of a small town in Michigan showed that 60% of the residents are male, 20% have college degrees, and 15% are both male and college graduates.

  Statistical significance in evaluating the quality

Using the paired t test because the samples are correlated with each other could be another avenue. This would help us find the p-value and look at the statistical significance in evaluating the quality of care or outcomes in a medical home.

  Pearson product-moment correlation coefficient

Critical Thinking: Discuss the implications of: magnitude (from 0 to 1); sign ( + or -); and probability versus causality for the Correlation Coefficient (also known as the Pearson Product-Moment Correlation Coefficient).

  One sample mean by t-test

To test this notion, eight paid volunteers were placed (individually) in a room in which there was no light from the outside and no clocks or other indications of time.

  Conclusion of the new mean

Note that Σ x  = 2233 and Σ x 2   = 138,053. At the 5% level of significance, can the instructor conclude that the new mean is different from 64?

  Define null hypothesis and alternative hypothesis for test

If mean height when these plants are treated with the certain chemical varies from 185. Define the null hypothesis H0 and alternative hypothesis H1 which we would use for this test.

  Evaluating true population mean using confidence interval

Based on the data, determine the 95 percent confidence interval evaluate for true population mean?

  Position the null and the alternate hypothesis

Based on the answers to a through d, decide whether or not to reject the null hypothesis at the given significance level. Explain your conclusion in the context of the problem.

  Mean of a normal distribution probability

The mean of a normal distribution probability is 400 pounds. The standard deviation is 10. What is the area between 415 pounds and the mean of 400 pounds? (Round to 4 decimals)

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