You are given the following information obtained from a random sample of five observations. 20 18...
You are given the following information obtained from a random
sample of five observations.
|
20 |
18 |
17 |
22 |
18 |
At a 10% level of significance, use Excel to determine whether or not the mean of the population from which this sample was taken is significantly less than 21. (Assume the population is normally distributed.)
Complete the following table with your Excel functions and the corresponding values. The sample size row is an example. Sate your conclusion about the sample observations compared to the test value of 21.
|
|
Conclusion: ___________________________________________________________________ _____________________________________________________________________________ |
Homework Answers
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You are given the following information obtained from a random
sample of five observations.
20
18...
A random sample of five observations from three normally distributed populations produced the following data: (You...
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A sample of 48 observations is selected from a normal population. The sample mean is 22, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0: μ ≤ 21 H1: μ > 21 What is the p-value? (Round your answer to 4 decimal places.)
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The population is normally distributed. A sample produces the following observations:(You may find It useful to...
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A random sample of five observations from three normally distributed populations produced the following data: (You may find it useful to reference the F table.) Treatments A C 20 1 9 25 25 22 27 21 24 24 26 2.1 22 23 19 XR - 23 SR6.5 S 4.5 S 4.5 Click here for the Excel Data File f. At the 5% significance level, what is the conclusion to the test? Reject Ho since the p-value is less than significance...
Score: Uoll Out 10.3.7 <20, a simple random sample of size n=18 is obtained from a population that is known to be normally distributed. Answer parts (Hd) To test Hou= 20 versus H BEE Click here to view the t-Distribution Area in Right Tail (a) If x= 18 and s=4.4, compute the test statistic. t= (Round to two decimal places as needed.)
3. A random sample of size 21 from a normal distribution with mean u yields observations that are summarized as follows: • ī= 3.5 . 511(2-1) = 0.6156 You are testing the following hypotheses: • H,:=3 • Ha:p #3 Let tay be the critical value of a t random variable with v degrees of freedom. The following table lists values of tay for specific combinations of a and v: v = 20 v=21 a = 0.005 2.845 2.831 a =...
9.138 Consider a random sample of size 20 from a normal population with hypothesized mean 1.618. a. Write the four parts for a one-sided, left-tailed hypothesis test concerning the population mean with α 0.05. b. Suppose x = 1.5 and s = 0.45. Find the value of the test statistic, and draw a conclusion about the population mean. c. Find the p value associated with this hypothesis test.
9.138 Consider a random sample of size 20 from a normal population...
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state rejection rule and conclusion
B r u· B-I et . A . E 리 트프 $-% , MAS Fond tin al For atas Shell. Insert Deine Format I Merge & Center . Formatting Table Styles- Font Alignment cear. Cels l Hypothesis Test About a Population Mean with o unknown alue est Sample Size Sample Mean Sample Standard Deviat 40.0000 7.1944 0.9846 Sate the Hypotheses Find the test statistic, t Cuncusion Ho: μ = 7 1.2486 Hypothesized Value 7.0000 State...
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