given:n = 16observed sample mean x¯ = 8.9observed sample variance s2 = 25μ0 = 10.5part a) find the observed test statistic for testing H0: μ=μ0 versus H1: μ≠μ0 part b) the p-value and significance at the 5% levelpart c) the confidence interval at 95% Suppose we next want to compute a 95% confidence interval for u.What is the lower endpoint of this 95% confidence interval? Give answer to three decimal places.Answer:Answer savedWhat is the upper endpoint of this 95% confidence interval? Give answer to three decimal places.Answer: 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?. We would like to test Ho : µ = µo versus H1 : µ + µo.What test statistic should you should use to test Ho versus H, ?Select one:X-HoO a. T=n tn-1O b. W =(n-1)s?O c. Z =ΤΗ N 0, 1)2.Clear my choice

We have given that n = 16, x¯ = 8.9 , s2 = 25μ0 = 10.5

given: n = 16 observed sample mean x¯ = 8.9 observed sample variance s2 = 25 μ0 = 10.5 part a) find the observed test statistic for testing H0: μ=μ0 versus H1: μ≠μ0 part b) the p-value and significance at the 5% level part c) the confidence interval at 95%

given: n = 16 observed sample mean x¯ = 8.9 observed sample variance s2 = 25 μ0 = 10.5 part a) find the observed test statistic for testing H0: μ=μ0 versus H1: μ≠μ0 part b) the p-value and significance at the 5% level part c) the confidence interval at 95%

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Find the critical value tcfor the confidence level c=0.80 and sample size n=28.
If the observed concentration readings are 2.56, 2.67, 2.06, 2.68, and 2.43, determine 95% confidence interval for the mean concentration for the following two conditions: a) assuming variance (σ2) = 0.04 b) the variance is not known
Find the critical value tc for the confidence level c=0.98 and sample size n=16. tc = ____
The accompanying summary data on skeletal-muscle CS activity (nmol/min/mg) appeared in an article. Old Old Young Sedentary Active Sample size 10 8. 10 Sample mean 46.28 47.41 58.34 Sample sd 7.16 5.59 8.43 Carry out a test at level a = 0.05 to decide whether true average activity differs for the three groups. Suppose that all required ANOVA assumptions are satisfied. If appropriate, investigate differences amongst the means with a multiple comparisons method. (Use i = 1, 2, and 3 respectively.) State the appropriate hypotheses. Ho: H1 = H2 = H3 H: all three H's are unequal Ho: H1 = H2 = H3 Ha: : at least two u's are unequal O Ho: H1 # H2 + H3 all three u;'s are equal Ha Ho: H1 + H2# H3 H: at least two u's are equal Calculate the test statistic. (Round your answer to two decimal places.) f =
A random sample of 100 households was selected as part of a study on electricity usage, and the number of kilowatt-hours (kWh) was recorded for each household .The average usage was found to be 10.5 kWh. In a very large study in the previous year it was found that the standard deviation of the usage was 3.2 kWh. Assuming the standard deviation is unchanged and that the usage is normally distributed, calculate a 90% confidence interval for the mean usage (round to two decimals) a. (9.68 , 11.30) O b. (9.87 , 11.10) O c. (7.05 , 7.95) O d. None of these e. (9.97 , 11.00)
It is known that the zinc concentrations are usually normally distributed and havea variance of 0.09 grams per milliliter squared. In a study, the average zinc concentrationsrecovered from a random sample of zinc measurements in 22 different locations was found tobe 2.6 grams per milliliter. Calculate and interpret a 90% confidence interval for the overallaverage zinc concentration.
Find the critical value tc for the confidence level c=0.99 and sample size n=19. tc=
Find the critical value tc for the confidence level c=0.80 and sample size n=28.
A protein powder manufacturer randomly selected 35 samples of their top selling product. The sample's standard deviation is 4.2 grams. Assuming the weights of the protein powder product is normally distributed, construct a (a) 88%; (b) 98% confidence interval for the population variance and standard deviation.
Systolic blood pressure levels above 120 mm Hg are considered to be high. For the 100 systolic blood pressure levels listed in the accompanying data set, the mean is 128.86000 mm Hg and the standard deviation is 15.28254 mm Hg. Assume that a simple random sample has been selected. Use a 0.01 significance level to test the claim that the sample is from a population with a mean greater than 120 mm Hg.LOADING... Click the icon to view the data set of systolic blood pressure levels. the attachement is listed below. and the systolic blood pressure data is listed below Body and exam measurements are from 100 subjects. SYSTOLIC is systolic blood pressure (mm…