Consider the following competing hypotheses: Use Table 2. |
H0: μD ≥ 0; HA: μD < 0 |
d-bar = −4.3, sD = 7.2, n = 15 |
The following results are obtained using matched samples from two normally distributed populations: |
a. |
At the 1% significance level, find the critical value(s). (Negative value should be indicated by a minus sign. Round intermediate calculations to 4 decimal places and final answer to 2 decimal places.) |
Critical value |
b. |
Calculate the value of the test statistic under the assumption that the difference is normally distributed. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) |
Test statistic |
c. | What is the conclusion to the hypothesis test? | ||||||||
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Consider the following competing hypotheses: Use Table 2. H0: μD ≥ 0; HA: μD < 0...
Consider the following competing hypotheses: (You may find it useful to reference the appropriate table: z table or t table) H0: μD ≥ 0; HA: μD < 0 d¯d¯ = −3.5, sD = 5.5, n = 21 The following results are obtained using matched samples from two normally distributed populations: a-1. Calculate the value of the test statistic, assuming that the sample difference is normally distributed. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least...
Consider the following competing hypotheses: (You may find it useful to reference the appropriate table: z table or t table) H0: μD ≥ 0; HA: μD < 0 d¯d¯ = −3.2, sD = 6.0, n = 23 The following results are obtained using matched samples from two normally distributed populations: a-1. Calculate the value of the test statistic, assuming that the sample difference is normally distributed. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least...
Consider the following hypotheses: H0: μ = 420 HA: μ ≠ 420 The population is normally distributed with a population standard deviation of 72. Use Table 1. a. Use a 1% level of significance to determine the critical value(s) of the test. (Round your answer to 2 decimal places.) Critical value(s) ± b-1. Calculate the value of the test statistic with x−x− = 430 and n = 90. (Round your intermediate calculations to 4 decimal places and final answer to...
Consider the following competing hypotheses: (You may find it useful to reference the appropriate table: z table or t table) Hypotheses: H0: μD ≤ 2; HA: μD > 2 Sample results: d−d− = 5.6, sD = 6.2, n = 10 The following results are obtained using matched samples from two normally distributed populations: a. Calculate the value of the test statistic, assuming that the sample difference is normally distributed. (Round all intermediate calculations to at least 4 decimal places and...
Consider the following competing hypotheses and accompanying sample data. Use Table 8. Ho Ps 20 s-0.64 andn 9 a-1. Determine the critical value at the 5% significance level. (Round your answer to 3 decimal places. Critical value a-2. Specify the decision rule. OReject Ho. if Irsl 2 critical value ⓔ Reject Ho, if Irgl > critical value b. What is the value of the test statistic? (Negative value should be indicated by a minus sign. Round your answer to 2...
Consider the following competing hypotheses: (You may find it useful to reference the appropriate table: z table or ttable) -4.0, SD5.8,20 The following results are obtained using matched samples from two normally distributed populations a-1. Calculate the value of the test statistic, assuming that the sample difference is normally distributed. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic
Consider the following competing hypotheses: H0: ρxy ≥ 0 HA: ρxy < 0 The sample consists of 30 observations and the sample correlation coefficient is –0.46. Use Table 2. a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic b. Approximate the p-value. 0.005 < p-value < 0.01 p-value < 0.005 0.01 < p-value <...
Exercise 10-26 Algo Consider the following competing hypotheses: (You may find It useful to reference the appropriate table: z tab "-3.6, sD # 5.5, n * 21 The following results are obtained using matched samples from two normally distributed populations a-1. Calculate the value of the test statistic, assuming that the sample difference is normally distributed (Negative value shou Indicated by a minus sign. Round Intermedlate calculations to at least 4 decimal pleces and final answer to 2 decimal plece...
Consider the following hypotheses: HA μ <150 A sample of 80 observations results in a sample mean of 144. The population standard deviation is known to be 28. Use Table 1 a. What is the critical value for the test with α-001 and with α-005? (Negative values should be Indicated by a minus sign. Round your answers to 2 declmal places.) ue a 0.01 a 0.05 b-1. Calculate the value of the test statistic. (Negative value should be Indicated by...
Consider the following hypotheses: H0: μ ≥ 160 HA: μ < 160 The population is normally distributed. A sample produces the following observations: 152 138 151 144 151 142 Conduct the test at the 1% level of significance. (You may find it useful to reference the appropriate table: z table or t table) a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and...