A certain drug is used to treat asthma. In a clinical trial of the​ drug, 20 of 289 treated subjects experienced headaches​ (based on data from the​ manufacturer). The accompanying calculator display shows results from a test of the claim that less than 9​% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts​ (a) through​ (e) below.   a. Is the test​ two-tailed, left-tailed, or​ right-tailed? b. What is the test​ statistic? c. What is the​ P-value?

Q: You are testing the claim that smiling, rather than remaining neutral, during a court proceding will…

A: State the hypotheses. That is, there is no difference between two population means. That is, there…

Q: Is race a factor in the number of times a month a person eats out? The table below shows data that…

A: Given information: Level of significanceα=0.1 The hypotheses need to be tested is: H0:μ1=μ2=μ3=μ4H1:…

Q: A doctor compares three treatments for arthritis. He uses three samples, each of size six, in the…

A: We have given that  Three treatment  and each treatment having six size .

Q: . What is the test statistic? Z= C. What is the p value?

A:

Q: In one study of smokers who tried to quit smoking with nicotine path​ therapy, 41   were smoking…

A: a. It is needed to test the claim that whether the proportion of smokers who try to quit with…

Q: The mean number of sick days an employee takes per year is believed to be about 10. Members of a…

A: Followings are the Explanation of the question  Calculate the Sample Mean and Sample Standard…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 292 treated subjects…

A: Number of successes, x=18 Sample size, n=292 Significance level, α=0.10

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 294 treated subjects…

A: The data for a test drug used in treating asthma is provided.The test results for one sample…

Q: one study of smokers who tried to quit smoking with nicotine path​ therapy, 38   were smoking one…

A: From the given information we conduct Z test for proportion.

Q: In the book Business Research Methods (5th ed.), Donald R. Cooper and C. William Emory discuss a…

A: European.  Japanese       totalFirst time buyers      7…

Q: d. What is the null hypothesis, and what do you conclude about it? Identify the null hypothesis. A.…

A: It is given that P-value = 0.1476815015 Level of significance = 0.05

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 19 of 294 treated subjects…

A:

Q: Childhood participants in sports, cultural groups, and youth groups appear to be related to improved…

A: It is given that the sample size is 100 participants. The scores on this questionnaire follow normal…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 268 treated subjects…

A: According to the given information, we have Total number of subjects = 268 Level of significance =…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 19 of 287 treated subjects…

A: From the provided information, Sample size (n) = 287 Out of which 19 treated subjects experienced…

Q: Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of…

A: State the hypotheses. Correct option: Option D

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 26 of 261 treated subjects…

A: Here the given information is A certain drug is used to treat asthma. In a clinical trial of the…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 293 treated subjects…

A: Given that,x=15,n=293 and P = 0.11 The sample proportion is,

Q: Consider the set of sample data for scores on a Stat 1 exam: {0, 5, 7, 7, 7, 11, 15, 18, 22, 23,…

A: We have given  Data of students score With sample size =n=11 We have to find the answer of 3 related…

Q: Decide whether the following scenarios are example of type 1 error or type 2 error or neither? Use…

A: Explanation: The investigator is specifically interested to test whether the mean weight of babies…

Q: 18. A certain drug is used to treat asthma. In a clinical trial of the drug, 27 of 282 treated…

A: prop<0.09z=0.337092049p=0.6319762445hatp=0.0957446809n=282this is left tailed test< shows left…

Q: What is stated by the alternative hypothesis (H1) for an ANOVA? ​a. There are no differences…

A: We have given that the statement about to the alternative hypothesis of ANOVA.

Q: SS = 749.5 %3D SS = 830 %3D a. Use a one-tailed test with a = .05 to determine whether these data…

A: Given Data : we need to calculate standard deviations for both the samples , where the SS are given…

Q: A random sample of 11 adults is obtained, and each person’s red blood cell count (in cells per…

A: Given: Hypothesized mean μ=4.7 X= The red blood cell count (in cells per microliter) Sample mean…

Q: significance level to test th mull and alternative hypoth =H₂

A: Given, For  protected groups: sample size (n1) = 33 sample mean (x̄1) = 75.34 sample standard…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 22 of 272 treated subjects…

A:

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 270 treated subjects…

A: According to the given information in this question We need to apply one proportion z test

Q: A certain drug is used to treat asthma. In a clinical trial of the drug. of 2/2 treated subjects…

A: a) The claim of the test is p<0.11.

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 25 of 260 treated subjects…

A: sample size(n)=260x=25significance level()=0.05sample proportion()=

Q: A wildlife biologist is interested in comparing the mean number of miles flown per day by two types…

A: given data x¯ = 131.8s1 = 10.3n1 = 31x¯2 = 129.5s2 = 11.5n2 = 36hypothesisH0 :  μ1 = μ2H1 :  μ1 <…

Q: Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in…

A: The t-test is used to understand the mean significance between the variables. It is used when the…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 30 of 299 treated subjects…

A:

Q: Before the furniture store began its ad campaign, it averaged 123 customers per day. The manager is…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: A researcher was interested in comparing the amount of time (in hours) spent working out by women…

A:

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 28 of 278 treated subjects…

A: Let x= The number of clinical trial of the drug treated subjects experianced headaches. x=28 n=Total…

Q: Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in…

A:

Q: certain drug is used to treat asthma. In a clinical trial of the​ drug, 15 of 286 treated subjects…

A:

Q: The accompanying table gives results from a study of words spoken in a day by men and women. Assume…

A: Solution Given That, Use a 0.05 significance level to test the claim that the numbers of words…

Q: a. Is the test​ two-tailed, left-tailed, or​ right-tailed? ​Left-tailed test Right tailed test…

A: As per our guidelines, we are allowed to answer first there sub-parts only   a. Is the test​…

Q: The accompanying table gives results from a study of words spoken in a day by men and women. Assume…

A: Let σ12 be the population standard deviation for the numbers of words spoken in a day by men, and…

Q: Women are recommended to consume 1770 calories per day. You suspect that the average calorie intake…

A: Solution: n= 11 Sample size  μ=1770 Population mean  x (x-x) (x-x)2 1916 76.09091 5789.826…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.