The test statistic of z = 1.00 is obtained when testing the claim that p>0.5.a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.b. Find the P-value.c. Using a significance level of a = 0.01, should we reject H, or should we fail to reject H,?Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.a. This is a right-tailed test.b. P-value =(Round to three decimal places as needed.)

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Answered: he test statistic of z 1.00 is obtained…

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 clinical researcher performs a clinical trial on 6 patients to determine whether a drug treatment has an effect on serum glucose. The sample mean glucose of the patients before and after the treatment are summarized in the following table. The sample standard deviation of the differences was 10. Sample mean glucose (mg/dL) Before treatment 105 After treatment 99 What type of hypothesis test should be performed?_______ select (left-tailed z-test, Paired t-test, two-tailed z-test, unpaired t-test) What is the test statistic?_______ (Ex: 0.123) What is the number of degrees of freedom? _______ (Ex: 25) Does sufficient evidence exist to support the claim that the drug treatment has an effect on serum glucose at the α=0.01 significance level? ______ select (no or yes)
earhorcout Coubionud ecoLea 21. Use the Empirical rule to solve the problem. (5pt The amount of Jen's monthly phone bill is normally distributed with a meån of $70 and a standard deviation of $9. a) Draw a normal curve with the mean in the center. Label the x axis with the values one, two and three standard deviations away from the mean. 12
For any normal distribution, what is the probablity of selection a score less than the mean?
You are up for a promotion at your work and you know that you needed to get at least 24.6 sales exactly this month to be set for the promotion. The average number of sales in your store was 24 with a standard deviation of 2 and a normal distribution. Based on this distribution what would be the likelihood you will be getting your promotion? Please provide a brief interpretation for the Z-score of the minimum number of sales you would need.
Suppose we have a normal distribution N(2, 4), using the Empirical rule, what proportion of data is between the data values -2 and 6?
A population of values has a normal distribution with �=17 and �=56.9. You intend to draw a random sample of size �=227.What is the mean of the distribution of sample means?��¯= What is the standard deviation of the distribution of sample means?��¯= Round to 4 decimal places.
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Aspirin is packed in 120 tab bottles with weight normally distributed with mean 600g and standard deviation 6g. Rejected bottles are those whose weight differs from the mean weight by 15g or more. That is, rejected bottles have weight either too small or too large. We want to find out how many bottles will be rejected from a daily production of 5000 bottles. 1,Do we have to calculate one z-score or two z-scores? 2. The negative z-score is 3. The positive z-score is 4.How many bottles, of the 5000, do we anticipate to have to reject?
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, µ, is less than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 37 hours and that the standard deviation is 3 hours. Based on this information, answer the questions below. What are the null hypothesis (H,) and the alternative hypothesis (H ,) that should be used for the test? H:u is 7 In the context of this test, what is a Type I error? АТурe I error is 7 fact, u is 7 | the hypothesis that µ is ? when, in Suppose that we decide not to reject the null hypothesis. What sort of error might we be making? ?
The salary for workers at a company are normally distributed with a mean of $60,000 and a standard deviation of $9,000. A random sample of 36 employees was taken. If a smaller sample of 25 was taken can we still claim that the distribution of x is Normal? No Yes
Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, u, is less than 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 35 hours and that the standard deviation is 3 hours. Based on this information, answer the questions below. What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the test? H: u is ? H: u is ? In the context of this test, what is a Type II error? A Type II error is ? fact, u is ? v the hypothesis that u is ? ? v. when, in Suppose that we decide to reject the null hypothesis. What sort of error might we be making? ?

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