Math Homework

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8. What is the minimum sample size you should use to assure
8. What is the minimum sample size you should use to assure that your estimate of will be within the required margin of error around the population p? Margin of error: 0.005; confidence level: 99%; fr… read more
Chirag
Master's Degree
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Use the following situation for Questions 8 – 15: A national
Use the following situation for Questions 8 – 15: A national manufacturer of ball bearings is experimenting with two different processes for producing precision ball bearings. It is important that the… read more
Scott
Master's Degree
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1. What is(are) the critical t test value(s) for a right tailed
1. What is(are) the critical t test value(s) for a right tailed test where alpha is equal to .05 and the sample size (n) is equal to 23 2. What is(are) the critical t test value(s) for a left tailed t… read more
Chirag
Master's Degree
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Question 1 Suppose you wish to test the claim that
Question 1 Suppose you wish to test the claim that μ -1.645. Reject Ho if test statistic < -1.645. Reject Ho if test statistic < -1.96. Reject Ho if test statistic 10. Given a sample of n = 50 a… read more
Greg
Master's Degree
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I will need these statistic answers within a hour, please email me back and let me know if you can help!!! 1. A bank's loan officer rates applicants for credit. The ratings are normally distributed wi… read more
Chirag
Master's Degree
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Determine whether the hypothesis test involves a sampling distribution
Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution, Student t distribution, or neither. Claim: µ = 119. Sample data: n = 15, /x = 103, s = 15… read more
Chirag
Master's Degree
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1. The manager of a driving school claims that the mean time
1. The manager of a driving school claims that the mean time taken to learn how to drive a car is 8 hours or less for all new drivers. A sample of 16 new drivers showed that the mean time taken by the… read more
Stevewh
Bachelor's Degree
Bachelor's Degree
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5.Assume that the data has a normal distribution and the population
5.Assume that the data has a normal distribution and the population standard deviation is known. Find the critical z value used to test a null hypothesis. a = 0.08 for a two-tailed test. A) ±1.75 B) ±… read more
Greg
Master's Degree
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1Claim The mean test score is not 78.Test statistic z
1Claim: The mean test score is not 78. Test statistic: z = 2.05 A) 0.0202 B) 0.9596 C) 0.9798 2 Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., d… read more
rajeevanpillai
Master's Degree
Master's Degree
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Of 100 adults selected randomly from one town, 62 have health
Of 100 adults selected randomly from one town, 62 have health insurance. What is the 90% confidence interval for the true proportion of all adults in the town who have health insurance? Answer 0.495 &… read more
Stevewh
Bachelor's Degree
Bachelor's Degree
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A drug company is considering marketing a new local anesthetic.
A drug company is considering marketing a new local anesthetic. The effective time of the anesthetic drug has a normal distrubution with an average of 7.4 minutes and a standard deviation of 1.2 minut… read more
Stevewh
Bachelor's Degree
Bachelor's Degree
7,610 satisfied customers
1) If a hypothesis test has a level of significance of 5%,
1) If a hypothesis test has a level of significance of 5%, that means if the null is true, we don't reject it 5% of the time. A. True B. False 2) A Type II error is committed when we reject a null hyp… read more
Chirag
Master's Degree
10,329 satisfied customers
1. An auditor reviewed 25 oral surgery insurance claims from
1. An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was \$275.66 with a standa… read more
abozer
Bachelor's Degree
6,158 satisfied customers
2. Your statistics instructor wants you to determine a confidence
2. Your statistics instructor wants you to determine a confidence interval estimate for the mean test score for the next exam. In the past, the test scores have been normally distributed with a mean o… read more
StatisticsExpert
Asst. Professor
Doctoral Degree
397 satisfied customers
Inferential statistics is the _________. (Points 2)
Inferential statistics is the _________. (Points: 2) A) process of using a population parameter to estimate the values for sample statistics B) process of using sample statistics to estimate populatio… read more
muvee
Master's Degree
1,030 satisfied customers
2. An auditor for a large oil corporation has taken a random
2. An auditor for a large oil corporation has taken a random sample of monthly credit card charges for 32 individual (non-corporate) accounts. She found a mean of \$81.76. Assume that the population st… read more
Sk1llz
Math student
1,518 satisfied customers
(1) A sample of 49 observations is taken from a normal population
(1) A sample of 49 observations is taken from a normal population with a standard deviation of 10. The sample mean is 55. Determine the 99 percent confidence interval for the population mean. (5) A re… read more
Greg
Master's Degree
1,292 satisfied customers
1. Inferential statistics is the _________. (Points 2)
1. Inferential statistics is the _________. (Points: 2) A) process of using a population parameter to estimate the values for sample statistics B) process of using sample statistics to estimate popula… read more
Sk1llz
Math student
1,518 satisfied customers
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