GivenH = 310,determine the probability of a Type Il error for the following test of hypothesis:Ho : u = 300 H1 u> 300,using that the population standard deviation as 50, the significance level as 5%, andthe sample size as 81.Do NOT use EXCELa) 0.340b) 0.540c) 0.640d) None of the answers are correctO e) 0.440

Obtain the probability of type II error. The probability of type II error is obtained below as…

Answered: Given 4 = 310, determine 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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When people smoke, the nicotine they absorb is converted to cotinine, which can be measured. A sample of 80 smokers has a mean cotinine level of 172.5. Assuming that the population standard deviation is 19.5, what hypothesis test would we use to test the claim that the mean cotinine level of all smokers is greater than 150? a) Binomial Test b) z-test c) One sample t-test d) Paired samples t-test
1) Speeds of vehicles at a certain highway location are normally distributed with a mean of 66.4 and a standard deviation of 8.8. Find the speed in mph that separates the fastest 4% from the others. Select one: a) 84.0 b) 81.8 c) 69.9 d) 70.9 e) 51.0 2) Find the number of respondents needed in a poll to determine within 1.5% margin of error, the percentage of US adults that prefer divided government. Use 90% conifdence and assume about 32% of US adults prefer divided government. Select one: a) 1693 b) 30 c) 1922 d) 3403 e) 2618
3) For population standard deviation = 3 and a population mean = 10, find the z scores for the following x: A) x = 11 B) x = 8 C) x = 19 D) x = 2
65 homeless people in San Jose were asked their age. The sample mean age was 33.2 years. Let x be a random variable representing ages of homeless people in San Jose. Assume that x has a normal distribution and o = 7.3 years. Do the data indicate that the mean age of the population of homeless people in San Jose is less than 35 years old? Use a = 0.05. Identify the following in your answer. 1. Identify the null hypothesis Ho and alternate hypotheses H, for the problem. 2. Identify the sample statistic, test statistic, p-value and calculator key used: Sample Statistic (sample mean) (Stated in problem) = Test Statistic (z) (Round to two decimal places) %3D P-value: (Round to four decimal places) = Calculator key used: 3. Identify the significance level and determine if you reject or fail to reject the null hypothesis. significance level = Do you reject or fail to reject Ho ? 4. State your conclusion. Upload your answer. Remember you can only upload one document. Upload Choose a File
It is believed that the mean GPA for all biology majors is 3.6 at Mesa College. We randomly select 30 biology students and find out that their sample mean GPA is 3.49 with a sample standard deviation of 0.4. Has the GPA changed? a) State the null and alternative hypotheses. b) Find the test statistic. c)Find an interval for the p-value. d) At a 5% significance, what is your decision? e) What is your conclusion?
The standard deviation of a sample population is equivalent to the standard deviation of the sample population over the square root of n. A) True B) False
The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2967 and standard deviation 539. One randomly selected customer is observed to see how many calories X that customer consumes. Round all answers to 4 decimal places where possible.b. Find the probability that the customer consumes less than 2600 calories. c. What proportion of the customers consume over 3342 calories? d. The Piggy award will given out to the 2% of customers who consume the most calories. What is the fewest number of calories a person must consume to receive the Piggy award? calories. (Round to the nearest calorie)
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Find the standardized test statistic, z to test the claim that p, = p2. The sample statistics listed below are from independent samples. n1 = 50, x1 = 35, and n2 = 60, x2 = 40 ... О А. 1.328 В. 2.361 С. О.374 O D. 0.982
14. Pooled estimate of the standard deviation = 21.4, and n1 = n2 = 13. Thus, the standardized error is: Select one: 6.083 0.6 3.45 8.393
From a sample with n = 12, the mean number of televisions per household is 2 with a standard deviation of 1 television. Using Chebychev's Theorem, determine at least how many of the households have between 0 and 4 televisions. At least of the households have between 0 and 4 televisions. (Simplify your answer.)
The U.S. Department of Transportation reported recently that all commuters in the New York City area average 120 minutes on the road travelling to and from work each workday. Assume that the standard deviation for the amount of time all commuters in the New York City area travel to and from work each workday equals 30 minutes. a) If a random sample of 36 commuters in the New York City area is selected, calculate the associated standard error of the mean.. b) What is the probability that mean travel time for the commuters in the sample is between 113.5 and 122.5 minutes?

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