Given
Upper H 0:
muμless than or equals≤12,
for which confidence interval should you reject
Upper H 0?
if we have given H0 : u 12
if the confidence interval for the population mean do not contain value 12 or less than 12 then we reject the H0 .eg Confidence interval (13.256 ,14.289)
i.e.if the confidence interval for the population mean contains values greater than 12 then we reject H0
Given Upper H 0: muμless than or equals≤12, for which confidence interval should you reject Upper...
Determine whether to reject or fail to reject Upper H 0H0 at the level of significance of a) alphaαequals=0.030.03 and b) alphaαequals=0.010.01. Upper H 0H0: muμequals=128128, Upper H Subscript aHa: muμnot equals≠128128, and Pequals=0.01630.0163. a) Do you reject or fail to reject Upper H 0H0 at the 0.030.03 level of significance? A. Fail to rejectFail to reject Upper H 0H0 because Pless than<0.030.03. B. RejectReject Upper H 0H0 because Pgreater than>0.030.03. C. RejectReject Upper H 0H0 because Pless than<0.030.03. D....
Consider the hypotheses below. Upper H 0: mu equals 50 Upper H 1: mu not equals 50 Given that x overbar equals 53, s equals 8, nequals20, and alphaequals0.01, answer the questions below. a. What conclusion should be drawn? b. Use technology to determine the p-value for this test. a. Determine the critical value(s). The critical value(s) is(are) ___?
In a one-tail hypothesis test where you reject Upper H 0 only in the upper tail, what is the p dash value if Upper Z Subscript STAT Baseline equals plus 2.40 question mark In a one-tail hypothesis test where you reject H, only in the upper tail, what is the p-value if ZSTAT = + 2.40? Click here to view page 1 of the Normal table. Click here to view page 2 of the Normal table. The p-value is (Round...
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample size of .n=7. 1, 2, 3, 4, 5, 6, and 15 <-----this is the data In the given data, replace the value 15 with 7 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 95% confidence interval for the population mean,...
If Upper X overbar equals X=90 , Upper S equals S=12 , and n equals n=64 , and assuming that the population is normally distributed, construct a 99% confidence interval estimate of the population mean, ?.
Consider the following hypotheses. Upper H 0 : p less than or = 0.11 Upper H 1 : p greater than 0.11Given that p overbar= 0.15 , n=140 , and alpha=0.01 , answer the following questions. a. What conclusion should be drawn? b. Determine the p-value for this test. a. Determine the critical value(s) of the test statistic. z Subscript alpha = (Use a comma to separate answers as needed. Round to two decimal places as needed.) Calculate the test...
Suppose that you are testing the hypotheses Upper H 0: p=0.38 vs. Upper H Subscript Upper A: p>0.38. A sample of size 250 results in a sample proportion of 0.45. a) Construct a 99% confidence interval for p. (__,__) b) Determine the conclusion for the hypothesis test based on the confidence interval. Since the confidence interval ▼ does does not contain the null hypothesis value, ▼ reject fail to reject the null hypothesis at alphaαequals=0.005. c) What is the difference...
Construct a 95% confidence interval of the population proportion using the given information. x equals 75 n equals 150 The lower bound is ? The upper bound is?
A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 5555 milligrams. You want to test this claim. During your tests, you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 52.952.9 milligrams. Assume the population is normally distributed and the population standard deviation is 7.87.8 milligrams. At alphaαequals=0.050.05, can you reject the company's claim? Complete parts (a) through (e). (a) Identify Upper H...
To test Upper H 0 : sigma =2.3 versus Upper H 1 : sigma greater than 2.3, a random sample of size n equals 16 is obtained from a population that is known to be normally distributed. (a) If the sample standard deviation is determined to be s= 2.5, compute the test statistic. (b) If the researcher decides to test this hypothesis at the alpha = 0.10 level of significance, use technology to determine the P-value. (c) Will the researcher...