Test whether the significant difference using paired t-test

Assignment Help Basic Statistics
Reference no: EM1321372

At the Olympic level of competition, even the smallest factors can make the difference between winning and losing. For example, Pelton (1983) has shown that Olympic marksmen shoot much well if they fire between heartbeats, rather than squeezing the trigger during a heartbeat. The small vibration caused by a heartbeat seems to be sufficient to affect the marks-man's aim. The following hypothetical data demonstrate this phenomenon. A sample of n = 6 Olympic marksmen fires a series of rounds while a researcher records heartbeats. For each marksman, a score is recorded for shots fired during heartbeats and for shots fired between heartbeats. Do the data indicate a significant difference? Test with ∝ = .05.

 Participant

During Heartbeats

Between Heartbeats

A

93

98

B

90

94

C

95

96

D

92

91

E

95

97

F

91

97

Reference no: EM1321372

Questions Cloud

Find the confidence interval for single mean : What sample size would be needed to obtain an error of +/- 10 square millimeters with 99% confidence?
Estimated average starting salary for school : Determine estimated average starting salary for school with average GMAT of 600 points?
Does length of the police contact influence perception : Does length of the police contact influence perception of the contact?
Estimate the optimal selling cost : Express the retailer's monthly profit from the sale of the cameras as a function of the selling cost. Estimate the optimal selling cost.
Test whether the significant difference using paired t-test : Do the data indicate a significant difference? Test with ∝ = .05.
Illustrate what constitutes a perfectly competitive market : illustrate what constitutes a perfectly competitive marketplace structure. Support your argument with empirical evidence wherever possible.
Evaluating regression equation using independent variable : Now we would like to evaluate regression equation for X using Y as independent variable.
Hot day also bert is thirsty : It is a hot day also Bert is thirsty. Here is value he places on a bottle of water.
Value must be the obtained t-test statistic : You run a two tail t-test. The critical value for this test at the .05 level is a t of 7.82. What value must the obtained t-test statistic be in order to be considered significant at the .05 level?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Machine following a normal distribution with mean

The lengths of pins produced by a machine follow a normal distribution with mean 2.54 cm and standard derivation 0.04 cm.

  Testing the claim using single mean z test

Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.

  Computing a particular value having z-score

What does it mean to say that a particular value of x has a z-score of -2.1?

  Histogram for the probability distribution

Make a histogram for the r probability distribution.

  What is the test statistic, t

A sample of 10 urgent and non-urgent patients was conducted to determine average wait time.  The hospital wants to be sure that urgent patients do not wait as long as non-urgent patients.  The following hypotheses have been formulated.

  Compare the two forecasts by utilizing mad

Calculate a 3-month moving average forecast for months 4 through 9 also Compare the two forecasts by utilizing MAD. Which forecast appears to be more accurate.

  Capability of a process refers to

A company makes camshafts. The camshaft lengths need to be within a certain tolerance or they will not fit. They have produced x bar and s charts

  What is the standard error for the sample mean

At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and the standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. What is the possibility that th..

  The mean of a standard normal probability distribution

The mean of a standard normal probability distribution.

  Determining probability that spin is going to be red

If 16 out of 20 spins just came up black, determine the probability that next spin is going to be red?

  Determining the probability of fatal accident over lifetime

Determine the probability of fatal accident over lifetime? Describe your reasoning carefully. Suppose independent events. Why might the supposition of independence be violated?

  Testing condition in probability

Is there a significant difference the four testing conditions?

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