A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is less than 10with known variance o. What is the critical value for the test statistic Z0 for the significance level of 0.050? Round your answer to twodecimal places i.e., 0.00. Provide all the necessary solutions.ZO = Blank 1

We want to calculate Zcritical Ho:μ=10H1:μ<10 (left tail)α=0.05

Answered: A hypothesis will be used to test that…

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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need help with this one please
In a test of significance, you can conclude there is a statistically significant relationship when:
Iq and lead exposure. A sample of subjects with low lead levels in their blood was taken and another random sample was taken with high levels of lead in their blood. Use a 0.05 significant level to test claim that iq score of people p le w low lead levels is higher than the mean iq score of people w higher lead levels. Use p value approach LLL N =78 SAMPLE MEAN=92.88 S=15.34 HLL N=21 SM= 86.90 S=8.99
This problem is fill in the blank. Just choose the correct answers. Thank you for your help A scientist has read that the mean birth weight, μ, of babies born at full term is 7.2 pounds. The scientist, believing that μ is less than this value, plans to perform a statistical test. She selects a random sample of birth weights of babies born at full term and finds the mean of the sample to be 6.9 pounds and the standard deviation to be 1.7 pounds. Based on this information, answer the questions below. What are the null hypothesis (H0) and the alternative hypothesis (H1) that should be used for the test? H0: (choose one) less than, less than or equal to, greater than, greater than or equal to, equal to, or not equal to. (choose one) 6.9 pounds, 7.2 pounds, or 1.7 pounds. H1: (Choose one) less than, less than or equal to, greater than, greater than or equal to, equal to, or not equal to. (Choose one) 6.9 pounds, 7.2 pounds, or 1.7 pounds. In the context…
What is the normalized z-score for a data point that has a value of 50 if the mean (Mu) is 560 and sigma is 55? This data point is taken from a total of 800 data point values .
A researcher believes that low BMI levels are indicators of eating disorders. He collects BMI of a sample of young adults identified as at risk for eating disorfers to see if their mean BMI is significantly below 18.5 What test would you use and why? (z test, independent t test, single sample t test, paired samples)
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"
can someone answer 3 and 5? please and thanks

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