A soft drink company wanted to know whether their new drink “PopFizzy” could maintain its fizziness from the first to last sip. They recruited 100 volunteers to rate the fizziness of their first sip, and again for their

Q: Help with 4

A: Given points are in an non- linear line. The given points denote as variable sample size chart of x-…

Q: A researcher studying stress is interested in the blood pressure measurements of chief executive…

A:

Q: Mean of 100 items is found to be 30. If at the time of calculation two items are wrongly taken as 32…

A:

Q: Where do p-values concentrate?

A: Under the null hypothesis H0 about the unknown distribution of the test statistic, the p value is…

Q: What is the percentage of scores that lie between a z score of -2 and a z score of 1?

A:

Q: what is the difference of fractile and quantile

A: Difference between fractile and quantile:

Q: A study found correlation R=0.43 between the amount of salt in hot dogs and their calorie count This…

A: Given data: R=0.43 between the amount of salt in hot dogs and their calorie count.

Q: What is the difference in what a small P-value tells us compared to a high P-value?

A: P Value is a method to determine the significance of the result from a data. It basically tells you…

Q: PLEASE SHOW YOUR WORK. I WANT TO BE ABLE TO DO THE PROBLEM MYSELF AND ROUND TO 3 DECIMALS in a…

A: 3 The standard deviation of the sampling distribution of Fisher's z-transformed correlation…

Q: Hello. I appreciate any help. Thanks.

A: Standard Error of estimate:S=√MSEMean square error:The formula for the mean square error is,MSE =…

Q: 5.

A: Given:

Q: The degrees of freedom in a chi-squared test equal to the number of participants in the test minus…

A: The degree of freedom for a chi square test = n – 1 Here, n is the number of participants. And the…

Q: Н : u is ? ? What are the null and alternative hypotheses that the researcher should use for the…

A: Population mean μ=136 mm Hg Population SD σ=16 mm Hg n=150

Q: At 5yrs old 10 of 307 children in the peanut butter group who ate were allergic and 55 of 321in the…

A: Given that  At 5yrs old 10 of 307 children in the peanut butter group who ate were allergic and 55…

Q: Help me understand how to find the Quartiles

A: Given : data To find: quartiles

Q: developed. took the drug for 3 months. Blood tests showed that x 8.4 with sample standard…

A: From the provided information,

Q: semester. After the semester is over these 121 students are given a reading comprehension test.…

A: From the above data We are given that  The average score for Indiana public school 6th graders on a…

Q: Number 2 only, thank you

A: A confidence interval estimate is an interval estimate that includes the unknown population…

Q: what is the symbol for the first parameter of the distribution and whats the value?

A: Answer: - Actually we have p=0.40  and sample size n=100  , This is the binomial Distribution

Q: What happens to the percentile ranks as one moves from left to right on the X-axis

A: To check how the percentile ranks changes as one moves from left to right on the x-axis.

Q: test statistic of -0.318

A: Test statistic are used to determine where the null hypothesis rejected or not. If the test…

Q: We are trying to develop a CI for the mean g-force to a driver in a front-end collision with a…

A: From the provided information,Confidence level = 98%

Q: Please also explain why you determined whether or not the results are statistically significant.  A…

A: From the given information we find the solution.

Q: 7.86 Revisiting dietary composition. In Exercise 7.71 (page 457), the total amount of fats was…

A: 7.86 Null Hypothesis: H0:μ1=μ2 Alternative Hypothesis: H1:μ1≠μ2 Consider, the pooled variance is,…

Q: A researcher claims that a new pain medication has less risk of abuse when compared to opiate…

A: Here null hypothesis is risk is equal and the alternative hypothesis is risk is reduced. We know…

Q: "Aiden receives a z score of -.3 on an exam that is normally distributed, what percentage of the…

A: Given : Aiden receives a z score of -.3 on an exam that is normally distributed.

Q: Data is collected on 30 adults to see if there is a correlation between age and amount donated to a…

A: Introduction:Suppose ρ is the true population correlation coefficient between two variables, and r…

Q: Please help, I keep getting the p-value wrong as it is supposed to be 0.00000. I need help finding…

A:

Q: 8. Carry out a formal t-test for the association between extroversion and neuroticism in…

A: 8. The sums are, Extroversion (x) Neuroticism (y) x2 y2 xy 43 49 1849 2401 2107 46 53 2116…

Q: A researcher wants to know if feelings of general happiness vary by race? Their obtained frequencies…

A: For the given data Use chi square test

Q: What is the probability that the aircraft is overloaded?

A: Here Before every flight, the pilot must verify that the total weight of the load is less than the…

Q: PLEASE SHOW YOUR WORK. I WANT TO BE ABLE TO DO THE PROBLEM MYSELF AND ROUND TO 3 DECIMALS in a…

A:

Q: e, negative, or no correlation. 3.

A: A positive correlation is a relationship between two variables in which both variables move in the…

Q: What is the 87.7 percentile of X~N(12,3)

A: Answer: Given that, X~N(12,3)

Q: You received a 74% on a quiz. You are curious about how you did in the class overall and want to…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the…

A: The following information has been provided: Before After d=μd=μbefore-μafter 3 8 3-8=-5 5 9…

Q: Assume that weights of men are normally distributed with a mean of 185.47 lb and a standard…

A:

Q: (b) Implement the test in part (a) and provide a two-tailed p-value. (Use an approximate method if…

A: Given that a pilot study is conducted where echocardiograms are obtained from 10 random children at…

Q: What should we do with a small p-value?

A: The P-value is the probability we get the value of the test statistic, or something "more extreme"…