Better than aspirin? A very large study showed thataspirin reduced the rate of first heart attacks by 44%. Apharmaceutical company thinks they have a drug that will be more effective than aspirin, and plans to do a random-ized clinical trial to test the new drug. a) What is the null hypothesis the company will use?b) What is their alternative hypothesis?They conducted the study and found that the groupusing the new drug had somewhat fewer heart attacksthan those in the aspirin group.c) The P-value from the hypothesis test was 0.28. Whatdo you conclude?d) What would you have concluded if the P-value hadbeen 0.004?

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A: We have to answer questions based on hypothesis testing.

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A: Hypothesis :  H0 : There is no relationship between migraine pain relief and treatment by…

Q: A veterinarian knows that the supplement glucosamine is beneficial for dogs' joints. He wants to…

A: Completely randomized design: In a CRD, treatments are assigned randomly in a manner that each…

Q: Psychologists are interested to know whether or not Thorazine affects thought disorder symptoms…

A: Given Information: Psychologists are interested to know whether or not Thorazine affects thought…

Q: An educational software company wanted to see if students improved their entrepreneurial skills…

A: Here want to test if the students improve their entrepreneurship skills after participating in five…

Q: You have certainly heard the above claim before. Advertisers frequently claim that some percentage…

A:

Q: According to Emergency Room Statistics, in any 6 month period, 15.2% of asthmatic children not on…

A: (C). It is given that is 2-sided hypothesis tests. To test the hypotheses using a z-proportional…

Q: A study is trying to determine if teens get more sleep per night than adults, on average. A research…

A: Given that    Sample sizes n1=15      , n2=20     Sample means X̄1=9.4      , X̄2=8.1      s1 =2.1…

Q: Test the null hypothesis that Race has no effect on Reading Scores (i.e., all of the race groups…

A: (a) The hypothesis is, Null hypothesis: Alternative hypothesis: The ANOVA is conducted by using…

Q: The National Institute of Mental Health published an article stating that in any one-year period,…

A: Step 1: State the hypothesis We are testing to see if the population proportion is more than 8.9% or…

Q: In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups.…

A:

Q: Clinical trials involve treating flu patients with Tami flu , which is a medicine intended to attack…

A: For the given data Perform z test for one  proportion

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A: Given that: Sample 1 (world-class athletes): x1=159n1=830 Sample 2 (potential athletes):…

Q: In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups.…

A: Solution: Given information: n1=201229  Sample size of treatment x1=33  successesfailures=…

Q: physician is concerned people are including too much red meat in their diet, which can increase risk…

A: From the available information ,the claim is that adults have red meat in 60% of the meals. The…

Q: 1 Nine out of ten dentists recommend this toothpaste! You have certainly heard the above claim…

A:

Q: Mr. Lum overheard one of his students saying “Lum’s exams are tough, it makes no difference whether…

A: The ANOVA is conducted by using EXCEL. The software procedure is given below: Enter the data.…

Q: 1. This is an example of a 2. Find the standard error. 3. Find the z value. -- hypothesis test.

A: Given,To find the type of test, standard error, and calculate the z value.

Q: A researcher has participants expecting to receive either painful or mild electrical shocks during a…

A: Usually in survival analysis studies we can use both parametric and non-parametric statistics. For…

Q: A researcher thinks that watching violent televisions increases aggressive behavior in children. To…

A: Given 48 children 3 groups

Q: A researcher wants to find the effect of a special diet on systolic blood pressure. A sample of 7…

A: The question is about hypothesis testing.Given :

Q: 1. This is an example of a 2. Find the standard error. 3. Find the z value. 4. Find the p-value.[.…

A: Given,the hypothesis test for one proportion.To answer the 5 sub-parts.

Q: A researcher studied the accuracy of responses on questions involving sensitive material. From…

A: a). Given, n1=39X1=21n2=41X2=23α=1-0.90=0.10 Now, p1=X1n1=2139=0.5385p2=X2n2=2341=0.5609 As per z…

Q: In a recent study; it was found that 62 percent of college students drink heavily and drive.…

A: The hypotheses can be constructed as: Null hypothesis: H0: p = 0.62 Alternative hypothesis: H1: p…

Q: The manufacturer of a new hybrid sports utility vehicle (SUV) states that, on average. it gets at…

A: Given: The manufacturer of a new hybrid sports utility vehicle (SUV) states that, on average. it…

Q: b) Fill in the expected values, round answers to at least 2 decimal places. Expected Values…

A: The data shows the pain relief on receiving acupuncture.

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A:

Q: A new, simple test has been developed to detect a particular type of cancer. The test must be…

A: Given information: The percentage of type of cancer is 3%. P(cancer)=3%=0.03 P(not having…

Q: A diabetic nurse seeks to assess the prevalence of type 2 diabetes among women in a population (age…

A: In recent years, there has been a growing concern about the impact of social media on mental health,…

Q: The National Institute of Mental Health published an article stating that in any two-year period,…

A: Let P be the true proportion of American adults suffer from depression or depressive illness. Here…

Q: According to a Pew Research Center study, in May 2011, 33% of all American adults had a smart phone…

A: In a research study, 33% of American adults had a smartphone. The number of community college…

Q: The National Institute of Mental Health published an article stating that in any one-year period,…

A: given data claim : p > 0.091n = 2000p^ = 0.105α = 0.01

Q: A researcher assembled two groups of individuals suffering from symptoms of the common cold. Group A…

A: Given that, A researcher assembled two groups of individuals suffering from symptoms of the common…

Q: According to a Pew Research Center study, in May 2011, 33% of all American ac smart phone (one which…

A: Sample size n=359Favorable cases x=152NOTE: according to bartleby guidelines expert can solve…

Q: According to a Pew Research Center study, in May 2011, 33% of all American adults had smart phone…

A: p=0.33, n=352, X=122

Q: 3.5 A survey of 1000 young adults nationwide found that among adults aged 18-29, 35% of women and…

A: Given Women   Men

Q: Migraine and Acupuncture: A migraine is a particularly painful type of headache, which patients…

A: The given null hypothesis is there is no relationship between migraine pain relief and treatment by…

Q: A double-blind study was conducted to study the effectiveness and safety of the drug temazepam as a…

A: The objective is to identify the desired hypothesis for validating if Temazepen is truly effective…

Q: You are management for a chain of department stores. Your analytics team believes that the…

A: Given datayou are a management for a chain of departement stores.Here n=48x=17p=25%

Q: Coach Elyson claims that 90% of her volleyball serves are good serves. The captain of the team…

A: The p-value method is one of the two ways of conducting hypothesis testing in inferential…

Q: the proportion of people who dream in color is different than the proportion in the 1940’s? What is…

A: Given : In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the…

Q: According to a Pew Research Center study, in May 2011, 33% of all American adults had a smart phone…

A: n=352, X=122, p=33% , α=0.05

Q: People who experience online harassment either ignore it or respond via postings or involving…

A:

Q: what is the null and alternative hypothesis?

A: Here use basic of hypothesis testing  Here test the claim that proportion of new car buyers that…

Q: Please help me better understand how to properly solve. A randomized controlled experiment in…

A: The data set of observed frequencies is given as  Number of subsequent…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.