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Show instructions Question 7 4 pts The output voltage for a certain electric circuit is specified...
The output voltage for a certain electric circuit is specified to be 130. A sample study...
The output voltage for a certain electric circuit is specified to be 130. A sample study of 9 independent reading on the voltage reading gave a sample mean = 128.6 and a standard deviation of s=2.1. Test the hypothesis Ho: u= 130 against the alternative hypothesis Ha: u < 130 at use a= 0.10. Assuming population distribution normal, what is the rejection region? Ot< -1.397 O z< -2.821 Ot< -1.833 z< -1.28
1. In lecture 23, we learnt an objective way of testing The goal of this quiz...
1. In lecture 23, we learnt an objective way of testing The goal of this quiz is to derive the testing for the less-than type alternative hypothesis o s. (a) Imitate the proof in Lecture 23 to construct a test at 5% level of significance starting from a general test statistic θ for testing the hypothesis in (1). You can have a similar asymptotic normality assumption. Be careful in getting the Z-cutoff to find the appropriate threshold for e rejection...
Please answer all D Question 27 1 pts A politician claims that for the adult population...
Please answer all
D Question 27 1 pts A politician claims that for the adult population of one town, the mean annual salary is u-$30,000 Sample data is collected: n-47, - $22,298, and s-$14,200. Use a significance level of a -0.10 to state the correct rejection region for a test of the claim. Time Attem 1 Ho eus 24/7 Reject Hoifz > 1.96 or z < -1.96. 5 Reject Hoitz < -2.576. Reject Ho if z > 1.96 Reject Ho...
Name: Assignment 7 Instructions: Show ALL your work, attaching 1. (10 pts.) A random sample of...
Name: Assignment 7 Instructions: Show ALL your work, attaching 1. (10 pts.) A random sample of 50 four-year-o an average of 53987 and the population wal of the true mean. Name: Assignment 8 For each of these hypothesis tests are 15 points each unless otherwise stated, SHOW a) your null and alternative hypotheses indicate which is the claim), b) the testing statistic-Z or T, c) the P-value, d) your decision about Ho, e) your decision about the claim. 1. The...
7.1.37 Question Help A security expert claims that more than 15% of all homeowners have a...
7.1.37 Question Help A security expert claims that more than 15% of all homeowners have a home security alarm. State Ho and H, in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning State the null hypothesis in words and in symbols. Choose the correct answer below. O A. The null hypothesis expressed in words is, "the proportion of all homeowners who own a home security alarm is...
This Test: 19 pts pos Question Help Is the difference between the mean annual salaries of...
This Test: 19 pts pos Question Help Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right Al a0.10, what should you conclude? Region 1 Region 2 2- $58,000 2- $9150 Click here to view page 1 of the standard Click here to view page 2 of the standard...
The output voltage for a certain electric circuit is specified to be 130. A sample study of 9 independent reading on the voltage reading gave a sample mean = 128.6 and a standard deviation of s=2.1. Test the hypothesis Ho: u= 130 against the alternative hypothesis Ha: u < 130 at use a= 0.10. Assuming population distribution normal, what is the rejection region? Ot< -1.397 O z< -2.821 Ot< -1.833 z< -1.28
1. In lecture 23, we learnt an objective way of testing The goal of this quiz is to derive the testing for the less-than type alternative hypothesis o s. (a) Imitate the proof in Lecture 23 to construct a test at 5% level of significance starting from a general test statistic θ for testing the hypothesis in (1). You can have a similar asymptotic normality assumption. Be careful in getting the Z-cutoff to find the appropriate threshold for e rejection...
Please answer all
D Question 27 1 pts A politician claims that for the adult population of one town, the mean annual salary is u-$30,000 Sample data is collected: n-47, - $22,298, and s-$14,200. Use a significance level of a -0.10 to state the correct rejection region for a test of the claim. Time Attem 1 Ho eus 24/7 Reject Hoifz > 1.96 or z < -1.96. 5 Reject Hoitz < -2.576. Reject Ho if z > 1.96 Reject Ho...
Name: Assignment 7 Instructions: Show ALL your work, attaching 1. (10 pts.) A random sample of 50 four-year-o an average of 53987 and the population wal of the true mean. Name: Assignment 8 For each of these hypothesis tests are 15 points each unless otherwise stated, SHOW a) your null and alternative hypotheses indicate which is the claim), b) the testing statistic-Z or T, c) the P-value, d) your decision about Ho, e) your decision about the claim. 1. The...
7.1.37 Question Help A security expert claims that more than 15% of all homeowners have a home security alarm. State Ho and H, in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning State the null hypothesis in words and in symbols. Choose the correct answer below. O A. The null hypothesis expressed in words is, "the proportion of all homeowners who own a home security alarm is...
This Test: 19 pts pos Question Help Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right Al a0.10, what should you conclude? Region 1 Region 2 2- $58,000 2- $9150 Click here to view page 1 of the standard Click here to view page 2 of the standard...
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