Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 40 of the 47 subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 79 of the 95 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts​ (a) through​ (c) below. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis​ test? whats the z score? whats p-value?

Q: A local pizza company ran a taste test with 3 different sauce recipes. The study consisted of 60…

A: It is given that a local pizza company ran a taste test with 3 different sauce recipes.

Q: According to the Center for Disease Control (CDC) during the 2018-2019 season the percent of…

A: Given that  p=45.3% , n=500 , X=200

Q: Researchers conducted a study comparing the effectiveness of vinyl gloves and latex gloves. Among…

A: Given : x1= 158.0 n1= 229 x2= 133.0 n2= 229 significance level, 0.05

Q: If a hurricane was headed your way, would you evacuate? The headline of a press release states,…

A: Sample size = n = 4625 Sample proportion = p̂ = 0.32

Q: a researcher conducts an experiment comparing two treatment conditions with 15 scores in each…

A: a)   From the given information,   There are 2 treatment groups and each group has 15 scores.   That…

Q: An owner of an ice cream shop wants to investigate whether a new training program affects the…

A: The objective of the question is to determine the null and alternative hypotheses for a one-sample…

Q: what is the first critical value? If there is more than one critical value, enter the lower value.

A: Given,the employees who receive scooping skills training (CT) and those who do not (NT).The…

Q: CT (trained) group: 15.00, 10.00, 14.00, 7.00, 21.00, and 21.00. The owner is aware of the known…

A: Given,the employees who receive scooping skills training (CT) and those who do not (NT).The…

Q: O H: At least two of the population means are equal. H: At least two of the population means are…

A: Given that ,  How long it takes paint to dry can have an impact on the production capacity of…

Q: An owner of an ice cream shop wants to investigate whether a new training program affects the…

A: The given data is as follows:NT (no training) group: 15.00, 7.00, 18.00, 10.00, 6.00, and…

Q: A local pasty company ran a taste test with 3 different pasty recipes. The study consisted of 60…

A: It is given that a taste test with 3 different pasty recipes from a local pasty company.

Q: Read the following study, construct the appropriate 2x2 table, calculate the measure of association,…

A: Consider the given study in which A statewide outbreak of E. coli O:157 is being investigated.…

Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…

A: Observational study: In observational study, the individuals of the study are observed by the…

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 45 of the…

A:

Q: Find the value of the standard score, z, and determine whether the alternative hypothesis is…

A: Given that, The null and alternative hypothesis H0: μ = 18.7 Ha: μ ≠ 18.7 (claim) n = 11 x̅ = 20.5 σ…

Q: Whare the degrees of freedoms for the treatment and experimental errorst

A: Given that,No. of treatments No. of replications Treatment means

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 37 of the…

A:

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 34 of the…

A: There are two independent samples which are Echinacea and placebo. Both samples come from population…

Q: For a repeated –measures study comparing three treatment conditions with a sample n =4 participants,…

A: Given, n=4 k=number of treatments =3 The SS between subjects is given by the formula:…

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 42 of the…

A: There are two independent variables which are treatment group and placebo group. The number of…

Q: You may need to use the appropriate technology to answer this question. In a completely randomized…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: An owner of an ice cream shop wants to investigate whether a new training program affects the…

A: The objective of this question is to determine the critical values for a one-sample t-test. The…

Q: What is the formula for STANDARDIZED EFFECT SIZE, COHEN’S d (TWO INDEPENDENT SAMPLES)?

A:

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 41 of the…

A: From the given information we conduct the z test.

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the…

A: According to the given information in this question We need to identify the conclusion and also find…

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 36 of the…

A: The given data is,Echinacea GroupPlacebo GroupThe significance level,

Q: A local pasty company ran a taste test with 3 different pasty recipes. The study consisted of 60…

A: Choice of Statistical Test depends on several factors.

Q: A simple random sample of size n= 200 drivers with a valid driver's license is asked if they drive…

A:

Q: gloves with glove powder on a daily basis are particularly susceptible to developing a latex…

A: We have given that  Sample size n =46 Sample mean =19.3 Sample standard deviation =11.9 95%…

Q: investigate whether a new training program affects the scooping skills of ice cream shop employees.…

A: The owner divides employees into two groups: those who receive training (CT) and those who do not…

Q: In a random sample of 315 people 90 of them were smokers. Based on the above sample test whether the…

A:

Q: The drug OxyContin (oxycodone) is used to treat pain, but it is dangerous because it is addictive…

A: Given Information :  The drug OxyContin (oxycodone) is used to treat pain, but it is dangerous…

Q: 1. You investigated the effect of vitamin D on melanoma in males and females. After exposing the…

A: You are investigated the effect of vitamin D on melanoma in males and females. After exposing the…

Q: help me fix a please !!

A: State the hypotheses. That is, the population proportion of the people who answered “Yes” is the…

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 32   of…

A: