Consider a random sample of size n from a normal distribution with unknown mean u and unknown variance o?. Suppose the sample mean isX and the sample variance is S?.n = 16, the observed sample mean i is 8.9. the observed sample variance s? is 25 and 4o :10.5.Suppose we now want to test Ho : o? = of versus H1 : o? + of.Which of these test statistics should we use?Select one:(n-1)s?W =ofa.O b. Z%3DO c. T=S/nLet o = 36. What is the (appropriate) observed test statistic? Give answer to three decimal places.What is the p-value of the (appropriate) observed test statistic for testing Ho : o? = of versus H1 : o? + of you just computed? Give answerto three decimal places.

Givenn=16sample mean(x)=8.9sample variance(s2)=25μ0=10.5Test isH0=σ2=σ02 versusH1=σ2≠σ02

Answered: Consider a random sample of size n from…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A researcher was interested in knowing if mean BMI was different between males and females. He obtained the following test results. Choose the correct interpretation of the results: F test p value = 0.30 Two sample t test, assume equal variance = 0.02 Two sample t test, assume unequal variance = 0.61 Mean BMI is not significantly different between males and females. None Mean BMI is higher in males than females. Mean BMI is significantly different between males and females.
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A researcher takes sample temperatures in Fahrenheit of 20 days from Minneapolis and 18 days from Cleveland. Use the sample data shown in the table. Test the claim that the mean temperature in Minneapolis is different than the mean temperature in Cleveland. Use a significance level of α=0.01. Assume the populations are approximately normally distributed with unequal variances.Note that list 1 is longer than list 2, so these are 2 independent samples, not matched pairs. Minneapolis Cleveland 70.1 66.1 69.5 65.9 65.7 61 71.7 62.8 62 67.9 75.3 74.5 63.2 69.1 62 72.5 76.9 80.4 71.3 72.7 70.9 70.4 70.5 76.6 65.1 62.2 76.2 66.1 70.3 86 69.5 81 80.2 68.3 74.3 63.3 70.7 64.6 The Null Hypotheses is: H0: μ1 - μ2 = 0 What is the alterative hypothesis? Select the correct symbols for each space. (Note this may view better in full screen mode.)HA: μ1 - μ2 Based on these hypotheses, find the following. Round answers to 4 decimal…
Bhuro.0p0
I need help finding the test statistic and the P-value
Time left 0:48:02 Which one of the following choices describes a problem for which an analysis of variance would be appropriate? CA. Analyzing the relationship between high school GPA and college GPA C B. Analyzing the relationship between gender and opinion about capital punishment (favor or oppose). OC. Comparing the mean birth weights of newborn babies for three different hospitals. C D. Comparing the proportion of successes for three different treatments of anxiety. Each treatment is tried on 100 patients CE. None of these Next page US ACTIVITY VA(3) Jump to... MacBook Air

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