disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outlie and x=8.06 cm and s=0.7 cm. Conduct the appropriate test at the a =0.01 level of significance. State the null and alternative hypotheses. Họ: u H:p

use the t- distribution and the sample results to complete the test of the hypothesis. use a 5% significance level. Assume the results come from a random sample , and if the sample size is small, assume the underlying distribution is relatively normal .  H0: miu=4 vs Ha: miu not equal to 4 using the sample results x bar =4.8 s= 2.3 with n=15.   WHAT IS THE P-VALUE?

In a study of the accuracy of fast food drive-through orders, one restaurant had 37 orders that were not accurate among 308 orders observed. Use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho:p=0.1 H:p0.1 OC. Ho: p#0.1 H,:p=0.1 O D. Ho: p=0.1 H,:p#0.1 Identify the test statistic for this hypothesis test.

p value for B please

Use the following R output to answer the question.   Use the following R output to answer the question. >chisq.test(data) Pearsons Chi-square test data:data X-squared=4.7194, df=2, p-value=0.09445 If the significance level is 5%, what conclusion can you make? Group of answer choices A. fail to reject the alternative hypothesis B. cannot determine C. fail to reject the null hypothesis D. reject the null hypothesis and accept the alternative hypothesis

See attached

Use a significance level of a=0.05 to test the claim that μ=19. The sample data consists of 15 scores for which x=20.4 and s=4.8. State the null and alternative hypotheses, compute the value of the test statistic, and find the P-value for the sample. State your conclusions about the claim.

Can you please help me with this statistics last math problem? Thank you!

In a​ one-tail hypothesis test where you reject H0 only in the lower ​tail, it was found that the p-value is 0.1469 if ZSTAT=−1.05. What is your statistical decision if you test the null hypothesis at the 0.05 level of​ significance?       Question content area bottom Part 1 Choose the correct answer below.     A. Reject the null hypothesis because the​ p-value is less than the level of significance.   B. Reject the null hypothesis because the​ p-value is greater than the level of significance.   C. Fail to reject the null hypothesis because the​ p-value is greater than the level of significance.   D. Fail to reject the null hypothesis because the​ p-value is less than the level of significance.