A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims thatmore than 94% of patients taking the drug are healed within 8 weeks. In clinical trials, 220 of 232 patients suffering from acid reflux disease were healed after 8 weeks.Test the manufacturer's claim at the a = 0.1 level of significance.Click here to view the standard normal distribution table (page 1).Click here to view the standard normal distribution table (page 2).Because npo (1- Po) = 13.1 > 10, the sample size isrequirements for testing the hypothesis(Round to one decimal place as needed.)less than5% of the population size, and the sample can be reasonably assumed to be random,thearesatisfied.What are the null and alternative hypotheses?= 0.940 versus H,: p0.940Ho:(Type integers or decimals. Do not round.)Determine the test statistic, zozo = (Round to two decimal places as needed.)

Answered: A certain drug can be used to reduce…

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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Find the percent of the total area under the standard normal curve between the following pair of z-scores. z= 0.65 and z = 1.1 In order to find the area between the area under the curve between the two z-scores, first find the area to the left of each z-score. The area to the left of z = 0.65 is The area to the left of z = 1.1 is next find the area between the area under the curve between two z-score.
What is the formula for the standard error of the normal approximation to the p distribution. P=
Twenty years ago, 53% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that Question Help ▼ 284 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.1 level of significance. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Because npo (1-Po) = 10, the sample size is 5% of the population size, and the sample the hypothesis satisfied. V the requirements for testing (Round to one decimal place as needed.) Enter your answer in the answer boOx and then click Check Answer. Check Answer 4 parts remaining Clear All W MAY F12 F10 F9 F8 F7 F6 F5 F4 F3 F2 & #3 2$ 4 3 R. T E Q G H. A S B F. 4. DI
For some value of Z, the value of the cumulative standardized normal distribution is 0.2090. What is the value of Z, rounded to two decimal places?
Based on a recent study, the pH level of the arterial cord (one vessel in the umbilical cord) is normally distributed with mean 7.39 and standard deviation of 0.16. Find the percentage of preterm infants who have the following arterial cord pH levels. a. pH levels between 7.00 and 7.50. b. pH levels over 7.47. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. The percentage of arterial cord pH levels that are between 7.00 and 7.50 is%. (Round to two decimal places as needed.) b. The percentage of arterial cord pH levels that are over 7.47 is %. (Round to two decimal places as needed.)
The acceptable level for insect filth in a certain food item is 2 insect fragments (larvae, eggs, body parts, and so on) per 10 grams. A simple random sample of 60 ten-gram portions of the food item is obtained and results in a sample mean of x = 2.6 insect fragments per ten-gram portion. Complete parts (a) through (c) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Why is the sampling distribution of x approximately normal? O A. The sampling distribution is approximately normal because the sample size is large enough. B. The sampling distribution is approximately normal because the population is normally distributed and the sample size is large enough. OC. The sampling distribution is approximately normal because the popluation is normally distributed. O D. The sampling distribution is assumed to be approximately normal. (b) What is the mean and standard deviation of the sampling…
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The acceptable level for insect filth in a certain food item is 4 insect fragments (larvae, eggs, body parts, and so on) per 10 grams. A simple random sample of 60 ten-gram portions of the food item is obtained and results in a sample mean of x=4.5 insect fragments per ten-gram portion. Complete parts (a) through (c) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). ... (a) Why is the sampling distribution of x approximately normal? A. The sampling distribution is approximately normal because the popluation is normally distributed. OB. The sampling distribution is approximately normal because the population is normally distributed and the sample size is large enough. C. The sampling distribution is approximately normal because the sample size is large enough. D. The sampling distribution is assumed to be approximately normal. (b) What is the mean and standard deviation of the sampling…

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