Homework Answers
The null and alternative hypotheses are,
Test statistic is, Z = -2.4
Part 4) critical values at 0.1 significance of level are,
Z* = +/- 1.645
Test statistic = -2.4 < -1.645, so we reject H0.
=> Yes, because the critical values are -1.645 and 1.645
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Part 4 out of 4 Do you reject Ho at the 0.1 level? Round the critical...
In a simple random sample of size 65, there were 37 individuals in the category of...
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RReject or not reject each?
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To test Ho: p= 100 versus Hy: p + 100, a simple random sample size of...
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To test Ho: p= 100 versus Hy: p* 100, a simple random sample size of n...
To test Ho: p= 100 versus Hy: p* 100, a simple random sample size of n = 20 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s= 9.1, compute the test statistic. (Round to three decimal places as needed.) ta (b) If the researcher decides to test this hypothesis at the a=0.01 level of significance, determine the...
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A 0.1 significance level is used for a hypothesis test of the claim that when parents...
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Given the null and alternative hypotheses below, a level of significance a = 0.1, together with...
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In a simple random sample of size 65, there were 37 individuals in the category of interest. Part: 0 / 4 Part 1 of 4 (a) Compute the sample proportion P. Round the answer to at least three decimal places. The sample proportion is Х 5 Part 2 of 4 (b) Are the assumptions for a hypothesis test satisfied? Explain. Yes the number of individuals in each category is smaller than 10. Part: 2/4 Part 3 of 4 (C) It...
Which of the following is the correct conclusion for the hypothesis test? A. Do not reject Ho; the data do not provide sufficient evidence to conclude that x is useful for predicting y. O B. Reject Ho; the data provide sufficient evidence to conclude that x is useful for predicting y. ° C. Reject Ho, the data do not provide sufficient evidence to conclude that x is useful for predicting y. D. Do not reject Ho;the data provide sufficient evidence...
RReject or not reject each?
Consider the following hypotheses: | Ho: u = 1,600 HA: u 7 1,600 The population is normally distributed with a population standard deviation of 600. Compute the value of the test statistic and the resulting p-value for each of the following sample results. For each sample, determine if you can "reject/do not reject" the null hypothesis at the 10% significance level. (You may find it useful to reference the appropriate table: z table or t...
To test Ho: p= 100 versus Hy: p + 100, a simple random sample size of n = 19 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 105.4 and s = 9.7, compute the test statistic. t= (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the a= 0.01 level of...
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Given the null and alternative hypotheses below, a level of significance a = 0.1, together with the accompanying sample information conduct the appropriate hypothesis test using the p-value approach. What conclusion would be reached concerning the null hypothesis? Ho: P1 = P2 HA:21 #P2 Х The sample information Click on the icon to view the sample information. Determine the value of the test statistic. Sample 1 Sample 2 Z= (Round to three decimal places as needed.) ny = 178 X1...
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