Correct statistical decision using a two-tailed test

Assignment Help Basic Statistics
Reference no: EM13134169

A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = -2.60. Assuming that the researcher is using a two-tailed test, what is the correct statistical decision.

Reference no: EM13134169

Questions Cloud

How many students expected to score in range : The mean is 75 and the standard deviation is 6. If 1200 students took the test, approx how many students would be expected to score between 69 and 81?
Explain conversion for a specific product : Conversion for a Specific Product, Indicate the reaction conditions you would employ to accomplish the following
Calculate the marginal propensity to consume : Calculate the Marginal Propensity to Consume - Furthermore you know that the marginal propensity to save (MPS)equals 0.4
Equipment and average cost of inventory : The payroll costs for the year were $100,000, and the accounting costs for the year totaled $50,000. The departments and the average cost of store equipment and average cost of inventory for each are as follows:
Correct statistical decision using a two-tailed test : The hypothesis test produces a z-score of z = -2.60. Assuming that the researcher is using a two-tailed test, what is the correct statistical decision.
Fact contributed to augustine''s conversion in his confession : • Describe and discuss the factors that contributed to Augustine's conversion in his Confessions.
Define compounds containing carbon-carbon triple bond : Compounds containing carbon-carbon triple bond undergo the Diels-Alder reaction. Formulate the product formed by the reaction
Date of consolidation : During the year, P sold goods to S for $85,800 at a mark-up of 25% on cost. 30% of these goods are still on hand at the date of consolidation.
Current ratio and return on assets ratio : A company's current assets are $150 and its' current liabilities are $100. If the company uses cash to retire notes payable due within one year, would this transaction increase or decrease the current ratio and return on assets ratio?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Mean time for a game

Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.

  Arrival of emails is approximated by poisson distribution

Internal study by Technology Services department at Lahey Electronics disclosed company employees get the average of 2 emails per hour. Suppose arrival of these emails is approximated by Poisson distribution.

  Margin of error for the confidence interval

Data collected by a child development scientist produced a 95% confidence interval for the mean age, μ (in weeks) at which babies began to craw as [21.4, 31.6]

  Find confidence interval for difference between two years

Find a 95% confidence interval for the difference between this year and last year in the mean number of units sold at all retail stores and interpret the results.

  Determine the effect size for the study

Use the steps of hypothesis testing; (b) figure the effect size for the study; And (c) explain your answers to parts (a) and (b) to someone who has never had A course in statistics.

  What percentage of pregnancies last between in range

Assume that the duration of human pregnancies can be described by a normal model with mean 268 days and standard deviation 17 days. What percentage of pregnancies should last between 260 and 270 days?

  Statistics-hypothesis testing of production line

The production line that packages boxes of raisins at a snack food manufacturer will be considered operating properly if the average weight of the boxes of raisin is 3.5 ounces with a standard deviation of 0.3 ounces.

  Determine probability that someone will hold winning ticket

If people on your floor of dorm bought 425 of those tickets, determine the probability that someone on your floor will hold winning ticket?

  Construct design using twins means

Using twins means that only two diet variations can be tested at each blocking level. Construct this design and explain your reason for this particular construction.

  Describing z-score within standard deviations of mean

It is not unusual for a battery to have life span that is more than 2470 hours as the z-score is  within 2 standard deviations of mean.

  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.

  Perform appropriate hypothesis test to test claim of firm

Test the claim of the engineering firm. Perform an appropriate hypothesis test, showing the necessary calculations and/or explaining the process used to obtain the results.

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