Does the design of the keyboards (A,B, & C) effect typing performance? Test at .05 level...

Does the design of the keyboards (A,B, & C) effect typing performance? Test at .05 level of significance. Keyboard A: 0, 4, 0, 1, 0 Keyboard B: 6, 8, 5, 4, 2 Keyboard C: 6, 5, 9, 4, 6

Solutions

Expert Solution

The following table is obtained:

	Group 1	Group 2	Group 3
	0	6	6
	4	8	5
	0	5	9
	1	4	4
	0	2	6

Sum =	5	25	30
Average =	1	5	6
∑iXij2=\sum_i X_{ij}^2 =∑iXij2=	17	145	194
St. Dev. =	1.732	2.236	1.871
SS =	12	20	14
n =	5	5	5

Conclusion

It is concluded that the null hypothesis Ho is rejected. Therefore, there is enough evidence to claim that

the design of the keyboards (A,B, & C) effect typing performance

at the α=0.05 significance level.

orchestra answered 1 year ago

Next > < Previous

Related Solutions

What does the term performance mean? Expected performance? b. What does the term risk mean? c....

What does the term performance mean? Expected performance? b. What does the term risk mean? c. Can the risk be completely eliminated? Why? d. In the financial securities market, how can the level of risk be minimized? and. What does variability mean within corporate finance? F. What does the concept of diversification mean within corporate finance? What is its application within a global stock market?

QUESTION 17 What alpha level matches with 90% confidence? A. .01 B. .05 C. .10 D....

QUESTION 17 What alpha level matches with 90% confidence? A. .01 B. .05 C. .10 D. .90 QUESTION 18 What alpha level matches with 95% confidence? A. .01 B. .025 C. .05 D. .10 QUESTION 19 What alpha level matches with 99% confidence? A. .005 B. .01 C. .05 D. .10

Test the hypothesis with a significance level (alpha) of .05 that the climate has changed since...

Test the hypothesis with a significance level (alpha) of .05 that the climate has changed since industrialization. Suppose that the mean temperature throughout history is 52 degrees. During the last 30 years, the mean temperature has been 53 degrees and suppose the population standard deviation is 2 degrees. What can we conclude? Then construct a 95 percent confidence interval for the population mean.

Test the hypothesis (at the .05 level of significance) that individuals who were bullied are more...

Test the hypothesis (at the .05 level of significance) that individuals who were bullied are more likely to bully others. Test the hypothesis (at the .05 level of significance) that individuals who were bullied committed more bullying than those who were not bullied ID of Respondent #of Friends who Bully Respondent was a Bully Victim (0=No, 1=Yes) Gender (0=Female, 1=Male) # of times Respondent Bullied Others 1 2 1 1 5 2 4 1 0 2 3 3 0 1...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the null hypothesis (what is the appropriate test, what is the critical value?). Draw the rejection region. Calculate the test statistic State the conclusion you are entitled to draw as a result of this test. Calculate the effect size as appropriate for the hypothesis test used. A researcher has developed a new therapy for the treatment of depression. The researcher has selected a small sample...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the null hypothesis (what is the appropriate test, what is the critical value?). Draw the rejection region. Calculate the test statistic State the conclusion you are entitled to draw as a result of this test. Calculate the effect size as appropriate for the hypothesis test used. A professor believes that psychology students study more than the average college student (after all, psychology students understand the...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the null hypothesis (what is the appropriate test, what is the critical value?). Draw the rejection region. Calculate the test statistic State the conclusion you are entitled to draw as a result of this test. Calculate the effect size as appropriate for the hypothesis test used. A recent study on the effects of Tamiflu looked into whether the antiviral medication can reduce the duration of...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the...

Please state the null and alternative hypotheses. Using an alpha level of .05, please test the null hypothesis (what is the appropriate test, what is the critical value?). Draw the rejection region. Calculate the test statistic State the conclusion you are entitled to draw as a result of this test. Calculate the effect size as appropriate for the hypothesis test used. A current popular game relies on the rolling of twenty sided dice to determine success or failure. The current...

using the Chi-square Hypothesis Test. with .05 level of significance. What is the p value and...

using the Chi-square Hypothesis Test. with .05 level of significance. What is the p value and the test statistic? How do you find them? Location Error Type Midtown Uptown Total Caller Verification 15 12 27 Provided Correct Information 17 11 28 Correct Update 14 16 30 Other Error Types 10 16 26 Total 56 55 111

How does the blood typing test work? If provided with a hypothetical situation, be able to...

How does the blood typing test work? If provided with a hypothetical situation, be able to predict the results.

Subjects