Homework Answers
Chi-square test can be zero.
- >This happens when expected values equals to the observed values. If this happen we accept the null hypothesis.
Correct option: D
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What does it mean if the Chi-square test statistic has a value of zero? There is...
If the chi-square test is χ2(4, N = 71) = 3.472, then we ______. a. fail...
If the chi-square test is χ2(4, N = 71) = 3.472, then we ______. a. fail to reject the null hypothesis b. reject the null hypothesis c. reject the one-tailed null hypothesis d. reject the alternative hypothesis
-If the value of chi-square is large and cannot be accounted for based on sampling error,...
-If the value of chi-square is large and cannot be accounted for based on sampling error, the researcher should: fail to reject the null hypothesis reject the null hypothesis determine the degrees of freedom in the study observe the chi-square in the common zone. -If %Expected = 19 and N = 33, what is the value of fExpected? 6.08 0.63 6.27 5.7 -A psychology professor is studying whether a significant difference exists in the majors among students in her general...
What conclusion is appropriate if a chi-square test produces a chi-square statistic near zero
What conclusion is appropriate if a chi-square test produces a chi-square statistic near zero
I spefically need to see how the test statistic and critical value is calculated. Test the...
I spefically need to see how
the test statistic and critical value is calculated.
Test the claim that the proportion of men who own cats is significantly different than 80% at the 0.02 significance level. The null and alternative hypothesis would be: The test is: left-tailed right-tailed two-tailed Based on a sample of 55 people, 78% owned cats The test statistic is: (to 2 decimals) The positive critical value is: (to 2 decimals) Based on this we: Reject the null...
The value obtained for the test statistic, z, in a one-mean 2-test is given. Whether the...
The value obtained for the test statistic, z, in a one-mean 2-test is given. Whether the test is two tailed, left tailed, or right tailed is also specified. For parts (a) and (b). determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. a. The test statistic in a two-tailed test is z= -1.42. The P-value is (Round to three cocimal places as...
a) true b) false 42. For a chi-square distributed random variable with 10 degrees of freedom and a level of sigpificanoe computed value of the test statistics is 16.857. This will lead us to reje...
a) true b) false 42. For a chi-square distributed random variable with 10 degrees of freedom and a level of sigpificanoe computed value of the test statistics is 16.857. This will lead us to reject the null hypothesis. a) true b) false 43. A chi-square goodness-of-fit test is always conducted as: a. a lower-tail test b. an upper-tail test d. either a lower tail or upper tail test e. a two-tail test 44. A left-tailed area in the chi-square distribution...
for the type of test statistic, is it z, t, chi square or F. please help...
for the type of test statistic, is it z, t, chi square or F.
please help with this entire question
Tee Roaring 105.02 A laboratory claims that the mean sodium level, H. of a healthy adult is 140 mq per liter of blood. To test this claim, a random sample of 9 adult patients is evaluated. The mean sodium level for the sample is 144 mq per liter of blood. It is known that the population standard deviation of adult...
In a chi-square test, what would it mean if the P-value were less than 5%? a....
In a chi-square test, what would it mean if the P-value were less than 5%? a. That there is no real difference between observed and expected values. b. That there is a difference between observed and expected values. c. That any difference between observed and expected values is probably not due to random chance. d. a and c are true e. b and c are true
Value: 2 For many students, calculating the chi square value is the most challenging part of conducting a chi square test so it is important to practice. Consider the following information An F1 tall...
Value: 2 For many students, calculating the chi square value is the most challenging part of conducting a chi square test so it is important to practice. Consider the following information An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? ## or ####, depending on what you think the...
Bassey Based on the following table, what would your decision be for this Chi-Square test with...
Bassey Based on the following table, what would your decision be for this Chi-Square test with an alpha of .05? fo fe fofe (fofe)2 4 (fofe)2/fe 0.4 8 10 -2 12 10 2 4 0.4 No Exercise Once a Week Twice a week More then Twice a week 16 6 36 10 10 3.6 3.6 4 -6 36 Chi- Square 8 F O reject the null hypothesis ye O none of the other answers o the results are inconclusive fail...
I spefically need to see how
the test statistic and critical value is calculated.
Test the claim that the proportion of men who own cats is significantly different than 80% at the 0.02 significance level. The null and alternative hypothesis would be: The test is: left-tailed right-tailed two-tailed Based on a sample of 55 people, 78% owned cats The test statistic is: (to 2 decimals) The positive critical value is: (to 2 decimals) Based on this we: Reject the null...
The value obtained for the test statistic, z, in a one-mean 2-test is given. Whether the test is two tailed, left tailed, or right tailed is also specified. For parts (a) and (b). determine the P-value and decide whether, at the 1% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. a. The test statistic in a two-tailed test is z= -1.42. The P-value is (Round to three cocimal places as...
a) true b) false 42. For a chi-square distributed random variable with 10 degrees of freedom and a level of sigpificanoe computed value of the test statistics is 16.857. This will lead us to reject the null hypothesis. a) true b) false 43. A chi-square goodness-of-fit test is always conducted as: a. a lower-tail test b. an upper-tail test d. either a lower tail or upper tail test e. a two-tail test 44. A left-tailed area in the chi-square distribution...
for the type of test statistic, is it z, t, chi square or F.
please help with this entire question
Tee Roaring 105.02 A laboratory claims that the mean sodium level, H. of a healthy adult is 140 mq per liter of blood. To test this claim, a random sample of 9 adult patients is evaluated. The mean sodium level for the sample is 144 mq per liter of blood. It is known that the population standard deviation of adult...
Value: 2 For many students, calculating the chi square value is the most challenging part of conducting a chi square test so it is important to practice. Consider the following information An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? ## or ####, depending on what you think the...
Bassey Based on the following table, what would your decision be for this Chi-Square test with an alpha of .05? fo fe fofe (fofe)2 4 (fofe)2/fe 0.4 8 10 -2 12 10 2 4 0.4 No Exercise Once a Week Twice a week More then Twice a week 16 6 36 10 10 3.6 3.6 4 -6 36 Chi- Square 8 F O reject the null hypothesis ye O none of the other answers o the results are inconclusive fail...
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