A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean does not equal 10with known variance o. What are the critical values for the test statistic Z, for the significance level of 0.04?Round your answer to two decimal places (e.g. 98.76).Zal2-Zan =

We have given that, The null and alternative hypothesis are : H0 : μ = 10 versus H1 : μ ≠ 10 with…

Answered: with known variance o. What are the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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st • Question 14 You wish to test the following claim (Ha) at a significance level of a = 0.002. H.:p = 51.2 H.:p > 51.2 You believe the population is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: data 69 58.6 62.8 sUcfocthis sampls/Repout.answeraccurato three ec
Can you help me with the p-value I answered 0.034 which is incorrect
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2
What is the critical value and what does it mean two part question
N=80 p=.6 mean? variance? standard deviation?
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)
Microsoft Word -... # The average number of accidents at controlled intersections per year is 5.4. Is this average more for intersections with cameras installed? The 47 randomly observed intersections with cameras installed had an average of 5.9 accidents per year and the standard deviation was 1.08. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: V = H₁: > 5.4 c. The test statistic t = 3.174 (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should g. Thus, the final conclusion is that ... 80 F3 V 5.4 Select an answer the null hypothesis. O The data suggest that the populaton mean is significantly more than 5.4 at a = 0.01, so there is statistically significant evidence to conclude that the population mean number of accidents per year at intersections with…
An overly involved "neighborhood watch" group has been investigating the length of lawns. In years past, lawn lengths are normally distributed and lawns had been mowed to a mean length of 3.5 inches. A recent random sample of 16 lawn lengths is given below. Conduct an appropriate test, at a 5% significance level, to determine if the overall mean lawn length is now higher than 3.5 inches. Round all answers to 4 decimal places. Lawn Length (in.) 3.14 3.64 3.49 3.04 4.09 4.54 3.86 4.27 5.01 3.9 4.77 3.54 3.97 2.51 4.08 3.39 Checksum: 61.24 a. Consider the parameter of interest and choose the correct alternate hypothesis. μ≠3.5μ≠3.5 μ<3.5μ<3.5 μ=3.5μ=3.5 μ>3.5μ>3.5 b. Are the necessary conditions present to carry out this inference procedure? Explain in context. Our sample was not larger than 30 in size, but it is stated that the sample was randomly gathered from a normally distributed population. No. The sample is not large…
In the US, the average one-way commuting time is 26.4 minutes. Is this different in Atlanta? One survey of 35 Atlanta commuters found an average one-way commuting time of 30.7 minutes. (a) The test statistic is 1.1846. What is the meaning of this test statistic? The average error between different sample results and the hypothesized mean is 1.1846.The current sample result is 1.1846 standard errors above the hypothesized mean. The maximum error between different sample results and the hypothesized mean is 1.1846. (b) Based on the test statistic of 1.1846, what is the p-value to test if the average commuting time in Atlanta is different than the rest of the US? (4 decimals.) (c) On the basis of the above p-value, what can be said regarding a 95% confidence interval for the true average commuting time? The interval contain the value 26.4, because this value . (d) Suppose the sample size was increased to 120 Atlanta commuters, with other values remaining the same. How would…

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with known variance o. What are the critical values for the test statistic Zo for the significance level of 0.04? Round your answer to two decimal places (e.g. 98.76). Zal2 - Zal2 =