Answered

At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Experience the ease of finding accurate answers to your questions from a knowledgeable community of professionals. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

The marketing director for an ice cream company investigated whether there was a difference in preference for two new ice cream flavors—cotton candy and mango. Each participant from a large group of people was randomly assigned to taste one of the two flavors. After tasting, each person rated the flavor on a numerical scale from 1
1
to 5
5
, where 1
1
represented strongly dislike and 5
5
represented strongly like. A two-sample t
t
-interval for a difference between means (cotton candy minus mango) was constructed. Based on the interval, there was convincing statistical evidence of a difference in population mean flavor ratings, with mango having the greater sample mean rating. Which of the following could be the constructed interval?

Sagot :

mahima6824soni

The constructed interval for the rating of the ice cream mango and cotton candy is (-1.4-2.6). The correct option is C.

What is t-interval?

When the sample size is small and the population standard deviation is unknown, the T interval is useful.

The Z-interval for calculating confidence intervals becomes less reliable when the sample size is very small (n=30).

And this is where the T-interval comes in.

Thus, the correct option is C,  (-1.4-2.6).

Learn more about t-interval

https://brainly.com/question/9898168

#SPJ1

We hope this was helpful. Please come back whenever you need more information or answers to your queries. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.