Question

In: Statistics and Probability

2a. Given: x=15.994;s=0.913;s2 =0.833;n=100;α=0.05 Test the hypothesis that the mean is actually 16 ounces at a...

2a. Given: x=15.994;s=0.913;s2 =0.833;n=100;α=0.05
Test the hypothesis that the mean is actually 16 ounces at a 5% level of significance, using the attached template.
For Parts (f) and (g), assume the value of the test statistic to be 0.1 and that the P-value = 0.6, respectively, regardless of the values obtained.

2b. Given: x=15.994;s=0.913;s2 =0.833;n=100;α=0.05
Test the hypothesis that the standard deviation doesn’t exceed 1 ounce at a 5% level of significance, using the attached template.
For Parts (f) and (g), assume the value of the test statistic to be 100 and that the P-value = 0.25, respectively, regardless of the values obtained.

Solutions

Expert Solution


Related Solutions

Consider the hypothesis statement to the right. State your conclusion given that s=2.7​, n=27​, and α=0.05....
Consider the hypothesis statement to the right. State your conclusion given that s=2.7​, n=27​, and α=0.05. H0​: σ2≤5.0 H1​: σ2>5.0 LOADING... Click the icon to view a table of​ chi-square critical values. Calculate the appropriate test statistic. The test statistic is nothing. ​(Round to two decimal places as​ needed.)
Examine the following hypothesis test with n = 16, s = 8, and x = 29....
Examine the following hypothesis test with n = 16, s = 8, and x = 29. H0 : μ ≥ 31 HA : μ < 31 α = 0.10 a. State the decision rule in terms of the critical value of the test statistic. b. State the calculated value of the test statistic. c. State the conclusion. a. State the decision rule. Select the correct choice below and fill in any answer boxes in your choice. (Round to four decimal...
test the hypothesis (α = 0.05) that the population proportions of red and brown are equal...
test the hypothesis (α = 0.05) that the population proportions of red and brown are equal (pred = pbrown). You are testing if their proportions are equal to one another. NOTE: These are NOT independent samples, but we will use this approach anyway to practice the method. This also means that n1 and n2 will both be the total number of candies in all the bags. The “x” values for red and brown are the counts of each we found...
You are conducting a multinomial hypothesis test ( α = 0.05) for the claim that all...
You are conducting a multinomial hypothesis test ( α = 0.05) for the claim that all 5 categories are equally likely to be selected. Category Observed Frequency A 23 B 17 C 13 D 19 E 5 What is the chi-square test-statistic for this data? χ2=χ2= What are the degrees of freedom for this test? d.f. = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal...
Using the following output and α = 0.05, test that the mean for group 1 is...
Using the following output and α = 0.05, test that the mean for group 1 is greater than the mean for group 2.                  group               n          mean                sample std dev             1                    10        4.5                   0.9             2                    10        3.5                   0.9
Test at the α = 0.05 significance level whether the mean of a random sample of...
Test at the α = 0.05 significance level whether the mean of a random sample of size n = 16 is statistically significantly less than 10 if the distribution from which the sample was taken is normal, ?̅= 8.4 and ? 2 = 10.24. a) What is the appropriate test you can use to test the claim? b) What are the null and alternative hypotheses for this test? c) What is your conclusion? d) Find the confidence interval on the...
9)Test the claim that σ2 < 44.8 if n = 28, s2 = 28, and α...
9)Test the claim that σ2 < 44.8 if n = 28, s2 = 28, and α = 0.10. Assume that the population is normally distributed. Identify the claim, state the null and alternative hypotheses, find the critical value, find the standardized test statistic, make a decision on the null hypothesis (you may use a P-Value instead of the standardized test statistic), write an interpretation statement on the decision. 10)The heights (in inches) of 20 randomly selected adult males are listed...
A two-tailed hypothesis test is being used to evaluate a treatment effect with α = 0.05....
A two-tailed hypothesis test is being used to evaluate a treatment effect with α = 0.05. If the sample data produce a z-score of z = -2.0, then what is the correct decision? A.Reject the null hypothesis and conclude that the treatment has no effect B.Reject the null hypothesis and conclude that the treatment has an effect C.Fail to reject the null hypothesis and conclude that the treatment has no effect D.Fail to reject the null hypothesis and conclude that...
Consider the hypotheses shown below. Given that x overbarequals=106​, σ=27​, n=48​, α=0.05​, complete parts a and...
Consider the hypotheses shown below. Given that x overbarequals=106​, σ=27​, n=48​, α=0.05​, complete parts a and b. Upper H 0H0​: muμequals =113 Upper H 1H1​: muμnot equals ≠113 a. what is the​ z-test statistic? b. what are the critical​ z-score(s)? c. Because the test statistic _________________ ________ the null hypothesis. d. what is the p value?
Conduct the appropriate test of the specified probabilities using the given information. Use α = 0.05....
Conduct the appropriate test of the specified probabilities using the given information. Use α = 0.05. The five categories are equally likely to occur, and the category counts are shown in the table Category 1 2 3 4 5 Observed Count 48 62 75 50 65 Given: H0: p1 = p2 = p3 = p4 = p5 = 1/5 Ha: At least one pi is different from 1/5. FInd: Find the test statistic. (Round your answer to two decimal places.)...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT