The patient recovery time from a particular surgical procedure is normally distributed with a mean of 4days and a standard deviation of 2 days. Let X be the recovery time for a randomly selected patient. Roundall answers to 4 decimal places where possible.a. What is the distribution of X? X - NOb. What is the median recovery time?daysc. What is the Z-score for a patient that took 5.1 days to recover?d. What is the probability of spending more than 3.4 days in recovery?e. What is the probability of spending between 3.2 and 4 days in recovery?f. The 70th percentile for recovery times isdays.Submit Question

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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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The data of the number of ‘centuries’ i.e. a scores of 100 runs or more, scored by players at a cricket club during a season are given in the following table. Number of centuries Number of players0 41 k2 33 24 38 1 Given that the mean number of centuries scored per player is 1.95, find the value of k.A. 7B. 3C. 4D. 1
P K @ 2 Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. Help me solve this S a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. F2 W 30² OA H₂: #₁ = 1/₂ H₁: Hy #4₂ OC. Ho: Hy #4₂ H₁: Hy > H₂ The test statistic is (Round to two decimal places as needed.) mmand X…
The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.05 level that the medicine relieves pain in more than 399 seconds. For a sample of 10 patients, the mean time in which the medicine relieved pain was 406 seconds with a standard deviation of 18. Assume the population distribution is approximately normal. Step 2 of 5: Find the value of the test statistic. Round your answer to three decimal places. m Tables Keypad
Hi I know that you can’t answer every question is there anyway you can just answer question 4 please?
Psychology students in the Izmir University of Economics completed the Dental Anxiety Scale questionnaire in 2020. In this study, scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 14 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Aroxiety Scale is normal with u= 14 and g=35. Complete parts a through c A Click here to view a table of areas under the standardized normal curve O Table of Normal Curve Areas a. Suppose you score a 18 on the Dental Anxiety Scale. Find the z-value for this score. z= (Round to the nearest hundredth as needed ) b. Find the probability that someone scores between 13 and 18 on the Dental Anxiety Scale P(13sxs 18) =D (Round to four decimal places as needed) c. Find the probability that someone scores above 17 on the Dental Anxiety Scale P(x> 17)=(Round to four decimal places as needed.) Enter your answer in each of the answer boxes. |8 目國 100 |8 案 |8 業可 0 | 会效到商同我目 |
4
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Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... x 0.9 A graph with a bell-shaped curve, divided into 2 regions by a line from top to bottom, on the left side. The region right of the line is shaded and labeled 0.9. The x-axis below the line is labeled "x". Question content area bottom Part 1 The indicated IQ score, x, is enter your response here. (Round to one decimal place as needed.)
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Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table Click to view page 2 of the table. The indicated IQ score, x, is (Round to one decimal place as needed.) X 0.8 N

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