9.2 Q8 ignore this, just to rememebr what question it is. need p value and claim info too. thanks KListed in the data table are IQ scores for a random sample of subjects with medium lead levels in theirblood. Also listed are statistics from a study done of IQ scores for a random sample of subjects withhigh lead levels. Assume that the two samples are independent simple random samples selected fromnormally distributed populations. Do not assume that the population standard deviations are equalComplete parts (a) and (b) below.Click the icon to view the data table of IQ scores.Ho H₁-H2H₁ 11 #1₂Ho H1 =12H₁ H1 H₂The test statistic isHo. Hy #H2Hy: Hy > H2Ho H = 12H₁: Hy > H₂(Round to two decimal places as needed) st6n7.on 8IQ ScoresMedium Lead Level High Lead Level728192858697839210311191Printn₂ =X2 = 88.106S2 = 10.522= 11Done- Xiumplesameviati

From the given information we conduct t test.

Answered: K Listed in the data table are IQ…

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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myopenmath.com/assess2/?cid=208543&aid=14753792#/skip/5 HCS Bookmarks One TOS Score: 3.8/16 4/10 answered Question 5 You recently sent out a survey to determine if the percentage of adults who use social media has changed from 64%, which was the percentage of adults who used social media five years ago. Of the 2813 people who responded to survey, 1687 stated that they currently use social media. a) Use the data from this survey to construct a 94% confidence interval estimate of the proportion of adults who use social media. Record the result below in the form of (#,#). Round your final answer to four decimal places. b) Can you conclude that the percentage of adults who use social media has changed? Explain. Yes, because the proportion of adults who used social media five years ago is inside of the confidence interval. Yes, because the proportion of adults who used social media five years ago is not inside the confidence interval. No, because the proportion of adults who used social…
The mean ±1 sd of ln [calcium intake (mg)] among 25females, 12 to 14 years of age, below the poverty level is6.56 ± 0.64. Similarly, the mean ± 1 sd of ln [calcium intake(mg)] among 40 females, 12 to 14 years of age, above thepoverty level is 6.80 ± 0.76 4-What is the p-value corresponding to your answer toProblem 8.4?
5. mPQ = R. mSR = 19 MQRT = MPSR = mPS = DELL V
A random sample of 25 tires gave the average life as 38000 km and S.D. as 5000 km. Can it be concluded that the sample is drawn from a population with a mean life of 40000 km?
The mean ±1 sd of ln [calcium intake (mg)] among 25females, 12 to 14 years of age, below the poverty level is6.56 ± 0.64. Similarly, the mean ± 1 sd of ln [calcium intake(mg)] among 40 females, 12 to 14 years of age, above thepoverty level is 6.80 ± 0.76 I need answer 8.5 and 8.68.2 Test for a significant difference between the variancesof the two groups.8.3 What is the appropriate procedure to test for a significant difference in means between the two groups?8.4 Implement the procedure in Problem 8.3 using thecritical-value method.8.5 What is the p-value corresponding to your answer toProblem 8.4?8.6 Compute a 95% CI for the difference in meansbetween the two groups.
If SS Total = 8.8 and SS Between CS Scanned with CamScanner MARI 4.2, what is SS Error?
The mean ±1 sd of ln [calcium intake (mg)] among 25females, 12 to 14 years of age, below the poverty level is6.56 ± 0.64. Similarly, the mean ± 1 sd of ln [calcium intake(mg)] among 40 females, 12 to 14 years of age, above thepoverty level is 6.80 ± 0.76. A.What is the appropriate procedure to test for a significant difference in means between the two groups?B. Implement the procedure in Problem 8.3 using theD.critical-value method.C. What is the p-value corresponding to your answer toProblem 8.4? Compute a 95% CI for the difference in meansbetween the two groups.
is it p=value is suppose to be 0.0401 not 0.0395 to according z-table of -1.75
Queslf Yi = B1 + B2 X2 + B3 X3 + B4 X4 + ei ..5 and number of observation = 25. if we are suspecting that we have the problem and we want to use the Durbin Watson test to detect the problem. if we regress error term on lag error term and found that the correlation between them = 0.5, then the d - value will
The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day. An article reports the following summary data on intake for a sample of males age 65−74 years: n = 111, x = 12.4, and s = 6.69. Does this data indicate that average daily zinc intake in the population of all males age 65−74 falls below the recommended allowance? (Use ? = 0.05.)State the appropriate null and alternative hypotheses. H0: ? = 15Ha: ? > 15H0: ? = 15Ha: ? < 15 H0: ? = 15Ha: ? ≤ 15H0: ? = 15Ha: ? ≠ 15 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = P-value = State the conclusion in the problem context. Do not reject the null hypothesis. There is sufficient evidence that average daily zinc intake falls below 15 mg/day.Reject the null hypothesis. There is sufficient evidence that average daily zinc intake falls below 15 mg/day. Do not reject the null…
The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day. An article reports the following summary data on intake for a sample of males age 65−74 years: n = 116, x = 12.5, and s = 6.35. Does this data indicate that average daily zinc intake in the population of all males age 65−74 falls below the recommended allowance? (Use ? = 0.05.)State the appropriate null and alternative hypotheses. H0: ? = 15Ha: ? ≠ 15H0: ? = 15Ha: ? > 15 H0: ? = 15Ha: ? ≤ 15H0: ? = 15Ha: ? < 15 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = P-value = State the conclusion in the problem context. Do not reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day.Reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day. Do not reject…
Two formulation of a certain coating are being tested. 8 pipes coated with Formulation A and 8 pipes with Formulation B. The corrosion loss (in ??) is measured for each formulation on each pipe.PipeAB11972042161182314414041621785185183615416371361568130143Can you conclude that the mean amount of corrosion differs between the two formulations using ∝=0.05 ?

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