The probability of flu symptoms for a person not receiving any treatment is 0.051. In a clinical trial of a common drugused to lower cholesterol, 56 of 1041 people treated experienced flu symptoms. Assuming the drug has no effect on thelikelihood of flu symptoms, estimate the probability that at least 56 people experience flu symptoms. What do theseresults suggest about flu symptoms as an adverse reaction to the drug?(a) P(X 256)= (Round to four decimal places as needed.)n example6Get more help.MCOll200016&7O*8Clear all(9Check answer0

Probability of success: Sample size: Number of successes: The Success is the people who experienced…

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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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d. There is a 30% chance that X is above what value? X= (Type an integer or decimal rounded to two decimal places as needed.)
The time (in minutes) between telephone calls at an insurance claims office has the exponential probability distribution: f(x)=0.50e-0.50x for x ≥ 0 What is the mean time between telephone calls? What is the probability of 30 seconds or less between telephone calls? What is the probability of 1 minute or less between telephone calls? What is the probability of 5 or more minutes without a telephone call?
A researcher found that the two groups (n=25 in each group) they tested were significantly different from each other with a t-value of 2.91, which has a corresponding p-value of p=.06. Report the findings in APA number format.
A standardized math test of fifth grade students produces a mean ?μ = 100 with a ?σ = 18. A sample of n = 36 students participated in "boost" training for their math skills. The sample M = 104 with S = 24. Did this "boost" training significantly improve students' math performance? Use ?α = .01.
A sample of 100 scores has a mean of 58, a variance of 160, and an estimated standard error of 4. Which of these values is guaranteed to increase if the sample size is decreased to 10? a. none of these is likely to be changed very much by decreasing n. b. the value of the variance c. the value of the mean d. the value of the standard error
A sample of n = 8 scores has a mean of M = 16. For this sample, ΣX = 128. Is this true or false?
The mean percent of childhood asthma prevalence in 43 cities is 2.07%. A random sample of 33 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.4%? Interpret this probability. Assume that o = 1.39%. The probability is (Round to four decimal places as needed.)
The increases (in cents) in cigarette taxes for 17 states in a 6-month period are 60, 20,40, 40, 45, 12, 34, 51, 30, 70, 42, 31, 69, 32, 8, 18, 50. Compute the range andstandard deviation of the data
Find the indicated probability and interpret the result. From 1975 through 2020, the mean annual gain of the Dow Jones Industrial Average was 651. A random sample of 32 years is selected from this population. What is the probability that the mean gain for the sample was between 400 and 700? Assume o = 1540. The probability is (Round to four decimal places as needed.)
A certain disease has an incidence rate of 0.2%. The false negative rate is 8%, and the false positive rate is 3%. Calculate the probability that a person who tests positive actually has the disease. 0.0848 Note: The incidence rate is the probability that a random person gets the disease. The false negative rate is the probability of getting a negative result given that the person has the disease. The false positive rate is the probability of getting a positive result given that the person does not have the disease.
The mean percent of childhood asthma prevalence in 43 cities is 2.13%. A random sample of 32 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.5%? Interpret this probability. Assume that o = 1.34%. The probability is. (Round to four decimal places as needed.)
You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly different from 63%. With H, :p 63% you obtain a test statistic of z = - 1.222. Find the p-value accurate to 4 decimal places. p-value =

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