In the tt-test of significance for the hypotheses H0​:μ=11 and Ha​:μ<11, the value of the test statistic was found to be t = 1.205 using a sample of size 18. Estimate the upper bound for the P-value associated with this test. That is, fill in the blank P

Given the aggression scores below for Outcome A of the sleep deprivation experiment, verify that as suggested earlier these mean differences shouldn't be taken seriously by testing the null hypothesis at the .05 level of significance. Use the computation formulas for the various sums of squares and summarize result with an ANOVA table

Find Test Statistic, Corresponding P-value, and Conclude Test  A random sample of size 20 from a normal distribution with σ=4 produced a sample mean of 8. Is the  x distribution normal? Explain. Compute the sample test statistic  z  under the null hypothesis H0:μ=7 ForH1:μ≠7, estimate the P-value of the test statistic. For a level of significance of 0.05 and the hypotheses of parts (b) and (c), do you reject or fail to reject the null hypothesis? Explain.

The federal government would like to test the hypothesis that the average age of men filing for Social Security is higher than the average age of women set using α = 0.05 with the following data:      Men Women Sample mean 64.5 years 63.6 years Sample size 35 39 Population standard deviation 3.0 years 3.5 years  If Population 1 is defined as men and Population 2 is defined as women, the p-value for this hypothesis test would be ________.

In a previous year, 62% of females aged 15 and older lived alone. A sociologist tests whether this percentage is different today by conducting a random sample of 700 females aged 15 and older and finds that 428 are living alone. Is there sufficient evidence at the ax = 0.1 level of significance to conclude the proportion has changed? Because npo (1-Po) = 164.9 > 10, the sample size is (Round to one decimal place as needed.) Identify the null and alternative hypotheses for this test. Ho: p = 0.62 versus H₁: р # 0.62 (Type integers or decimals. Do not round.) Find the test statistic for this hypothesis test. Zo (Round to two decimal places as needed.) = less than 5% of the population size, and the sample is a random sample, all of the requirements for testing the hypothesis are satisfied.

What is the Pvalue?

J Suppose that Shoe Sices Of American women have a bell Shaped elu standard with a mean of 8,37 and a eleviation of 1.49, using the empirical Rule what percentage of american women have Shoe Sizes that are no more than 9.su? do not Roundl your answer

If the t-statistic for a single sample t-test is 1.58, what can you conclude? a. The test is significant at an alpha level of .05. b. The sample size of the test was at least 30. c. The sample mean was larger than the population mean. d. The population standard deviation was smaller than the difference between the sample mean and the population mean.

please and thank you

Researchers induced the growth of tumors in a sample of 9 mice.  The average size of the tumors in the sample was  4.3  mm and the sample standard deviation was s = 1.2 mm.  Test whether the mean tumor size differs from 4.0 mm.  Use α=.10 State the null and alternative hypotheses.  Determine the rejection region – indicate how you did this; don’t just give the answer.  Compute the test statistic – indicate what formula was used.  What is your conclusion and why?