A nutritionist in the FDA wants to compare the caloric content of medium French fries sold by Wendonald (Population 1) and McKing (Population 2) fast-food chains, to see if there is any difference between them. To test this, random samples from each chain is taken and the caloric contents of French fries are measured. The finding is summarized in the table on next page. Conduct an independent-samples t test to test whether there is any difference between the caloric content of French fries sold by the two chains, following the steps below.                                   Wendonald McKing = 32  = 30  = 390 calories  = 365 calories  = 30 calories  = 38 calories Suppose your calculated t statistic is 2.90 (Note this is a hypothetical situation, not the actual result from your test), what decision do you make with respect to the statistical hypotheses for this study? State your interpretation with reference to the question asked.   Decision:   Interpretation:

Q: A popular Italian eatery has had a dispute among the wait staff regarding the amount of tips waiters…

A: Lunch:Sample size Sample mean Sample standard deviation Dinner:Sample size Sample mean Sample…

Q: The owner of a service station wants to determine if owners of new cars (two years old or less)…

A:

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 40 of the…

A: Let p1 denotes the population proportion of subjects in the treatment group that developed…

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: A recent drug survey showed an increase in the use of drugs and alcohol among local high school…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: t appropriate test to determine if the three feed additives resulted to different mean cortisol…

A: Answer :  We use the One-way ANOVA test. Explanation : This test is typically used when you have a…

Q: The P-value for the appropriate test is 0.0296. Interpret this P-value in the context of the…

A: P-value: P-value means Probability value. P-value explains that whether to reject null hypothesis or…

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: In a sample of 36 employees in a large company, 8 employees have training for a specific activity.…

A:

Q: The sales rep of a waterbed claims that 25% of the Filipino died because of cardiovascular diseases.…

A:

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: 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: Capsaicin content in red habanero chilli (Capsicum chinense Jacq.) is affected by the drying…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

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: Two types of single-sample tests: How are single-sample z tests and t tests similar in terms of data…

A: Theoritical Question we need to find how are single-sample z tests and t tests similar in terms of…

Q: A school district is considering moving the start of the school day at Groveland High from 8:00 a.m.…

A: The correct option is "option A"  Explanation: The two samples are independent Samples are taken…

Q: A professor from the University of Álabama is interested in determining whether or not people from…

A: A t test is used to determine to check whether there is significant difference between means of two…

Q: A sample of 145 matched pairs of banks was formed in a study comparing banks in Turkey and Germany.…

A: Given: n=145Sample mean difference d¯=0.0506Sample standard deviation of differences s=0.3039 Let X…

Q: Please create different research scenarios that suitable to be analyzed using the following methods:…

A: T-Test :              T-Test are used to test population mean. There are different types…

Q: A balance used in an entomology lab to weigh grasshoppers is quite old and has been used for…

A:

Q: A quality control manager has concerns about the occurrence of defects on a component assembly used…

A: Given that We have to test hypothesis for the claim that the types of defects are independent of…

Q: A researcher wants to know whether taking a caffeine pill an hour before swimming affects the timeit…

A: It is needed to find the explanatory and response variable.

Q: Provide an example (different from the ones considered in this section) of a procedure based on a…

A: A researcher wants to test the effectiveness of the training program conducted for students to…

Q: A resercher inntnerested in evaluation environmetnally freindly behaviors evaluated how often people…

A: Introduction: Denote μ1, μ2 as the true population mean number of times people with a pessimistic…

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

A:

Q: Shift Morning Evening Overnight Total Defect Type A 43 17 14 74 Defect Type B 36 49 22 42 127 Defect…

A: Let the null hypothesis be, H0:defect type and shift of production are independent.H1: defect type…

Q: In a flowering plant, white flowers are dominant over red, and short plants are dominant over tall…

A: Given  phenotypes In a flowering plant  White, short:  206 Red, short:  83 White, tall:  65 Red,…

Q: What is the value of tobt for the independent samples?

A: The formula of test statistic for two independent samples t test is,

Q: Which statistical method is used in MP and ML to evaluate the support of nodes?

A: The statistical method that can be used in MP and ML to evaluate the support of nodes must be…

Q: Identify whether the studies described here are based on single samples, paired samples, or…

A:

Q: A report provided the following information on the sex of smartphone users for representative…

A: Chi-square distribution : A probability density function that, among other things, has the property…

Q: who live within 20 miles of the coast in high hurricane risk counties of eight southern states. In…

A: It is given that sample size (n) is 4,625 and p hat value is 1-0.32 = 0.68.

Q: what kind of statistical data might a barglar alarm company employ in trying to convince urdban…

A: Statistical Data: By statistical data, we mean the factual material used as a basis for discussion…

Q: For a two-way ANOVA, suppose that Factor A has four levels and Factor B has three levels, and that…

A:

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.