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![Solutions TI F = 3987 o = 630 value a) Critical value 2 = 20 12 = 11.64] b) Margin of error = 2012 rror . =).64 x 6 30 V50 C](http://img.homeworklib.com/questions/4b707ad0-717a-11ea-bba4-0b8a58f2b134.png?x-oss-process=image/resize,w_560)
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Name: Assignment 7 Instructions: Show ALL your work, attaching serateh paper if needed. 1. 0 pts....
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...
3. A random sample of 76 three-year olds attending daycare showed that the yearly tuition average...
3. A random sample of 76 three-year olds attending daycare showed that the yearly tuition average is $5648. Assume the population standard deviation is known to be $630. Find the 98% confidence interval of the mean yearly daycare tuition 4. A researcher is interested in estimating the average monthly salary of sports reporters in a large city. He wants to be 90% confident with his estimate. If the standard deviation is $1500, how large of a sample is needed to...
show all work and formulas Show vour work. Show symboic formulas when Gregor Mendel conducted his famous genetics...
show all work and formulas
Show vour work. Show symboic formulas when Gregor Mendel conducted his famous genetics experiments with peas. one sample of offspring consisted of 445 green peas and 156 yellow peas. Find a 90% confidence interval estimate of the population proportion of green peas. a) Critical value = Explain which distribution that you chose. four decimals Margin of error, E= b) three decimals <p< Confidence Interval: c) u Tdte Give three possible values of the population proportion...
Please Show work. Thank you! ** Show all work to earn full credit ** Notes, Hwk...
Please Show work. Thank
you!
** Show all work to earn full credit ** Notes, Hwk & Calculators allowed * Label answers ** ** Round test statistics, critical values and p-values to thousandths ** 1. Find the minimum sample size required in order to construct a 90% confidence interval about the population mean u of 10 year old boys' heights, where you want the error to be within 2 cm of the population mean. Several years ago, the population standard...
Please answer all 3 questions 8. 7. Question 9 1 pts Assume that the data has...
Please answer all 3 questions
8.
7.
Question 9 1 pts Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. a=0.05 for a test of the hypothesis that the mean is greater than or equal to 98. 0 -2.326 0 -1.960 0 -1.645 O +1.645 O 1.960 Find the appropriate critical value (either Za/2 or ta/2) Confidence level = 99% and...
show all work and formulas Researchers collect 41 Egyptian skuls dating from 2000 BCE and measure...
show all work and formulas
Researchers collect 41 Egyptian skuls dating from 2000 BCE and measure their maximum breadths. The mean of their sample is 123.4 mm and the standard deviation of their sample is 5.6 mm. Construct a 99% confidence interval estimate of the mean breadths of Egyptian skulls dating from 2000 BCE al Critical value Explain which distribution that you chose. Page fof Confidenca lntea r Name Sihow yer w two decimals b) Margin of error, E Confidence...
Question 202.5 pts If we consider the simple random sampling process as an experiment, the sample...
Question 202.5 pts If we consider the simple random sampling process as an experiment, the sample mean is _____. Group of answer choices always zero known in advance a random variable exactly equal to the population mean Flag this Question Question 212.5 pts The basis for using a normal probability distribution to approximate the sampling distribution of x ¯ and p ¯ is called _____. Group of answer choices The Law of Repeated Sampling The Central Limit Theorem Expected Value...
1. Use the given degree of confidence and sample data to construct a confidence interval for...
1. Use the given degree of confidence and sample data to construct a confidence interval for the point) population proportion p. A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confidence interval for the true proportion of all voters in the state who favor approval. 0 0.438<p0.505 0 0.444 p0.500 0 0.435<p<0.508 O 0.471 p0.472 2. Use the given data to find the minimum sample size required...
1. Determine the area under the standard normal curve that lies to the right of z...
1. Determine the area under the standard normal curve that lies to the right of z = -.22 z = .29 c = 1.05 and d = -.97 2. A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the probability of a rating that is between 200 and 275. Round your answer to four decimal places. 3. The...
Submit Assignment for Grading Save Exit tor Exercise 10.05 Algorithmic Question 1 of 3 Check My...
Submit Assignment for Grading Save Exit tor Exercise 10.05 Algorithmic Question 1 of 3 Check My Work (No more tries available) The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 40 male consumers was $135.67, and the average expenditure in a sample survey of 30 female consumers was $68.64. Based on past surveys, the standard deviation for...
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...
3. A random sample of 76 three-year olds attending daycare showed that the yearly tuition average is $5648. Assume the population standard deviation is known to be $630. Find the 98% confidence interval of the mean yearly daycare tuition 4. A researcher is interested in estimating the average monthly salary of sports reporters in a large city. He wants to be 90% confident with his estimate. If the standard deviation is $1500, how large of a sample is needed to...
show all work and formulas
Show vour work. Show symboic formulas when Gregor Mendel conducted his famous genetics experiments with peas. one sample of offspring consisted of 445 green peas and 156 yellow peas. Find a 90% confidence interval estimate of the population proportion of green peas. a) Critical value = Explain which distribution that you chose. four decimals Margin of error, E= b) three decimals <p< Confidence Interval: c) u Tdte Give three possible values of the population proportion...
Please Show work. Thank
you!
** Show all work to earn full credit ** Notes, Hwk & Calculators allowed * Label answers ** ** Round test statistics, critical values and p-values to thousandths ** 1. Find the minimum sample size required in order to construct a 90% confidence interval about the population mean u of 10 year old boys' heights, where you want the error to be within 2 cm of the population mean. Several years ago, the population standard...
Please answer all 3 questions
8.
7.
Question 9 1 pts Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. a=0.05 for a test of the hypothesis that the mean is greater than or equal to 98. 0 -2.326 0 -1.960 0 -1.645 O +1.645 O 1.960 Find the appropriate critical value (either Za/2 or ta/2) Confidence level = 99% and...
show all work and formulas
Researchers collect 41 Egyptian skuls dating from 2000 BCE and measure their maximum breadths. The mean of their sample is 123.4 mm and the standard deviation of their sample is 5.6 mm. Construct a 99% confidence interval estimate of the mean breadths of Egyptian skulls dating from 2000 BCE al Critical value Explain which distribution that you chose. Page fof Confidenca lntea r Name Sihow yer w two decimals b) Margin of error, E Confidence...
1. Use the given degree of confidence and sample data to construct a confidence interval for the point) population proportion p. A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confidence interval for the true proportion of all voters in the state who favor approval. 0 0.438<p0.505 0 0.444 p0.500 0 0.435<p<0.508 O 0.471 p0.472 2. Use the given data to find the minimum sample size required...
Submit Assignment for Grading Save Exit tor Exercise 10.05 Algorithmic Question 1 of 3 Check My Work (No more tries available) The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 40 male consumers was $135.67, and the average expenditure in a sample survey of 30 female consumers was $68.64. Based on past surveys, the standard deviation for...
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