Given H0: μ ≤ 12, for which confidence interval should you reject H0?
A. (13,16). B. (11.5, 12.5) C. (10, 13)
Given that :
H0: μ ≤ 12
In Option A) population mean does not contain in the interval .
CI is (13.16) rejected
A . (13.16)
Given H0: μ ≤ 12, for which confidence interval should you reject H0? A. (13,16). B....
Given Upper H 0: muμless than or equals≤12, for which confidence interval should you reject Upper H 0?
Suppose that you are testing the hypotheses H0: μ=70 vs. HA: μ≠70. A sample of size 41 results in a sample mean of 65 and a sample standard deviation of 1.7. a) What is the standard error of the mean? b) What is the critical value of t* for a 99% confidence interval? c) Construct a 99% confidence interval for μ. d) Based on the confidence interval, at α=0.010 can you reject H0? Explain.
Given the following hypothesis: H0 : μ ≤ 12 H1 : μ > 12 For a random sample of 10 observations, the sample mean was 14 and the sample standard deviation 4.80. Using the .05 significance level: (a) State the decision rule. (Round your answer to 3 decimal places.) (Click to select)Cannot rejectReject H0 if t > (b) Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic (c)...
Construct a confidence interval for μ based on the sample data given here: 12.3 11.6 11.9 12.8 11.5 11.4 12 11.7 11.8 11.5 Use 83% as the confidence level. Round the final values to two digits after the decimal point. The lower limit in the interval is: and the upper limit in the interval is:
Consider the following hypothesis test. H0: μ ≤ 12 Ha: μ > 12 A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.28. (a) Compute the value of the test statistic. (Round your answer to three decimal places.) (b) Use the t distribution table to compute a range for the p-value. p-value > 0.2000.100 < p-value < 0.200 0.050 < p-value < 0.1000.025 < p-value < 0.0500.010 < p-value < 0.025p-value <...
B. H0:μ=12 vs. HA:μ<12H0:μ=12 vs.
HA:μ<12
C. H0:μ=12 vs. HA:μ>12H0:μ=12 vs.
HA:μ>12
D. H0:μ=12 vs. HA:μ≠12H0:μ=12 vs. HA:μ≠12
2. Which conditions must be met for the hypothesis test to be
valid? Check all that apply.
A. The observations are independent
B. There must be at least 3 levels of the
categorical variable.
C. Population data must be nearly normal or the
sample size must be at least 30.
D. There must be an expected count of at least 5
in...
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Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16. A sample of size 16 results in a sample mean of 15.5 and a sample standard deviation of 20 a) What is the standard error of the mean? b) What is the critical value of t* for a 90% confidence interval? c) Construct a 90% confidence interval for μ. d) Based on the confidence interval, at α#0.05 can you reject Ho? Explain. a) The...
Based on the sample data, the P-value for a two-sided test of the null hypothesis H0:μ=10H0:μ=10 vs. H1:μ≠10H1:μ≠10 is 0.06. Which of the following statements is correct? A. the 95% confidence interval includes the value 10 B. the 68% confidence interval includes the value 10 C. the 90% confidence interval includes the value 10 D. None of the above
You need to test H0: μ=10 against H1: μ>10. The test statistic was found to be, Ztest=1.72. The P value of the test should be: 0.0427 0.9573 0.0854 You need to test H0: μ=100 against H1: μ<100. The P value of the test was found to be 0.0001. A possible 95% confidence interval is: -∞, 99.5 -∞, 78.6 110.3, ∞ A 95% upper confidence interval for the tensile strength of 0.05 millimeter (mm) Sisal fiber in Megapascals...
(a) Suppose the null and alternative hypothesis of a test are: H0: μ= 9.7 H1: μ >9.7 Then the test is: left-tailed two-tailed right-tailed (b) If you conduct a hypothesis test at the 0.02 significance level and calculate a P-value of 0.07, then what should your decision be? Fail to reject H0 Reject H0 Not enough information is given to make a decision