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Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states above and below the mean income? Use the SPSS output below. Test the mean difference and the assumption of equal variances at the .05 level. Group Statistics N INCGROUP INFMORT Infant mortalit 1.00 below mean rate (per 1000 live births) 2.00 above mear 28 23 Mean 7.9464 6.7435 Std. Deviation 2.0224 1.1878 Std. Error Mean .3822 2477 Lovene's Test for Equality of Variances t-test...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states above and below the mean income? Use the SPSS output below. Test the mean difference and the assumption of equal variances at the .05 level. Group Statistics N INCGROUP INFMORT Infant mortalit 1.00 below mean rate (per 1000 live births) 2.00 above moar 28 23 Mean 7.9464 6.7435 Std. Deviation 2.0224 1.1878 Std. Error Mean .3822 .2477 Levene's Test for Equality of Variances -test...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states above and below the mean income? Use the SPSS output below. Test the mean difference and the assumption of equal variances at the .05 level. Group Statistics N INCGROUP INFMORT Infant mortalit 1.00 below mean rate (per 1000 live births) 2.00 above moar 28 23 Mean 7.9464 6.7435 Std. Deviation 2.0224 1.1878 Std. Error Mean .3822 .2477 Levene's Test for Equality of Variances P-test...
Do males and females have significant different GPAs? Following is the output of analysis for 26...
Do males and females have significant different GPAs? Following is
the output of analysis for 26 males and 25 females.
1. Which of the following statements are true regarding
Levene’s F-test using a .05 level of significance?
a. Means are significantly different
b. Means are not significantly different
c. Variances are significantly different
d.Variances are not significantly different
2. From the chart above, what is the correct t-value, df, and Sig.
used for the t-test:
a. t(49)=0.326, p>0.05
b.t(49)=0.330, p>0.05...
1) This question is based on a National Vital Statistics Report from 2002 on infant mortality...
1) This question is based on a National Vital Statistics Report from 2002 on infant mortality statistics from the linked birth/Infant death data file by a variety of maternal and infant characteristics Use Table 1 to answer the following: a) (2 points) Define infant mortality. b) (2 points) What is the total infant mortality rate for all races combined (looking for a single number, not one number for each race)? c) (4 points) How would you describe the differences in...
The null hypothesis states there will be no difference in scores on the ADS between face-to-face...
The null hypothesis states there will be no difference in scores on the ADS between face-to-face counseling and video conference counseling. The results are t(38) = 0.258, p = .798. Group Statistics Group N Mean Std. Deviation Std. Error Mean ADS face to face video 20 20 9.2500 9.0000 3.14350 2.97357 .70291 .66491 Independent Samples Test Levene’s Test for Equality of variance t-test for Equality of Means F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 95% Confidence...
QUESTION 12 Using the SPSS output below, which of the following statements is correct? Independent Samples...
QUESTION 12 Using the SPSS output below, which of the following statements is correct? Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Difference Mean F Sig t df Sig. (2- tailed) Std. Error Difference Difference Lower Upper Equal variances assumed 1.429 280 2.145 10 058 6.00000 2.79682 - 23171 12.23171 Equal variances not 2.145 0.461 050 6.00000 2.79082 - 28015 12.28015 assumed The assumption of homogeneity of variance was...
QUESTION 1 "Look at the SPSS output below. Given a two-tailed test and an alpha of...
QUESTION 1 "Look at the SPSS output below. Given a two-tailed test and an alpha of 0.01, what would the appropriate APA-style phrase be?" Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means sig Mean Difference Std. Error Difference 95% Confidence Interval of the Mean Lower Upper sig (2-tailed) TAPSPEED 319 582 -2.845 13 .014 -14.00 4.92 -24.63 -3.37 Equal variances assumed Equal variances not assumed -2.927 11.865 013 -14.00 4.78 -24.44 -3.56 O "t...
A researcher is interested to see if there is an average difference in the age of...
A researcher is interested to see if there is an average difference in the age of male v. female CJ381 students. To examine this, she conducts a t-test. The SPSS output is shown below: Group Statistics sex N age in years 224 HL Mean 19.83 256 19.86 female male Std. Deviation 2.063 1.965 Std. Error Mean 138 123 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means sia Mean Difference 95% Confidence interval of the...
Problem Set 1: The independent-samples t test Research Scenario: A learning psychologist is interested in comparing the success of two different mnemonics (memorization methods) on performance in a me...
Problem Set 1: The independent-samples t test Research Scenario: A learning psychologist is interested in comparing the success of two different mnemonics (memorization methods) on performance in a memory task. He assigns students to two groups, one which learns and uses a language-based rhyming memory technique, and one which learns and uses a visual “method of loci” spatial memory technique. He then administers a memory task to each group of students. The students are scored based on the percentage of...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states above and below the mean income? Use the SPSS output below. Test the mean difference and the assumption of equal variances at the .05 level. Group Statistics N INCGROUP INFMORT Infant mortalit 1.00 below mean rate (per 1000 live births) 2.00 above mear 28 23 Mean 7.9464 6.7435 Std. Deviation 2.0224 1.1878 Std. Error Mean .3822 2477 Lovene's Test for Equality of Variances t-test...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states above and below the mean income? Use the SPSS output below. Test the mean difference and the assumption of equal variances at the .05 level. Group Statistics N INCGROUP INFMORT Infant mortalit 1.00 below mean rate (per 1000 live births) 2.00 above moar 28 23 Mean 7.9464 6.7435 Std. Deviation 2.0224 1.1878 Std. Error Mean .3822 .2477 Levene's Test for Equality of Variances -test...
Scenario for 2-5: Research question: Is there a difference in the infant mortality rates of states above and below the mean income? Use the SPSS output below. Test the mean difference and the assumption of equal variances at the .05 level. Group Statistics N INCGROUP INFMORT Infant mortalit 1.00 below mean rate (per 1000 live births) 2.00 above moar 28 23 Mean 7.9464 6.7435 Std. Deviation 2.0224 1.1878 Std. Error Mean .3822 .2477 Levene's Test for Equality of Variances P-test...
Do males and females have significant different GPAs? Following is
the output of analysis for 26 males and 25 females.
1. Which of the following statements are true regarding
Levene’s F-test using a .05 level of significance?
a. Means are significantly different
b. Means are not significantly different
c. Variances are significantly different
d.Variances are not significantly different
2. From the chart above, what is the correct t-value, df, and Sig.
used for the t-test:
a. t(49)=0.326, p>0.05
b.t(49)=0.330, p>0.05...
1) This question is based on a National Vital Statistics Report from 2002 on infant mortality statistics from the linked birth/Infant death data file by a variety of maternal and infant characteristics Use Table 1 to answer the following: a) (2 points) Define infant mortality. b) (2 points) What is the total infant mortality rate for all races combined (looking for a single number, not one number for each race)? c) (4 points) How would you describe the differences in...
QUESTION 12 Using the SPSS output below, which of the following statements is correct? Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Difference Mean F Sig t df Sig. (2- tailed) Std. Error Difference Difference Lower Upper Equal variances assumed 1.429 280 2.145 10 058 6.00000 2.79682 - 23171 12.23171 Equal variances not 2.145 0.461 050 6.00000 2.79082 - 28015 12.28015 assumed The assumption of homogeneity of variance was...
QUESTION 1 "Look at the SPSS output below. Given a two-tailed test and an alpha of 0.01, what would the appropriate APA-style phrase be?" Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means sig Mean Difference Std. Error Difference 95% Confidence Interval of the Mean Lower Upper sig (2-tailed) TAPSPEED 319 582 -2.845 13 .014 -14.00 4.92 -24.63 -3.37 Equal variances assumed Equal variances not assumed -2.927 11.865 013 -14.00 4.78 -24.44 -3.56 O "t...
A researcher is interested to see if there is an average difference in the age of male v. female CJ381 students. To examine this, she conducts a t-test. The SPSS output is shown below: Group Statistics sex N age in years 224 HL Mean 19.83 256 19.86 female male Std. Deviation 2.063 1.965 Std. Error Mean 138 123 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means sia Mean Difference 95% Confidence interval of the...
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