Researchers investigates how the size of a bowl affects how much ice-cream people tend to scoop...

Researchers investigates how the size of a bowl affects how much ice-cream people tend to scoop when serving themselves. People were randomly given a 17-oz bowl or a 34-oz bowl. They were then invited to scoop as much ice cream as they liked. Here are the summaries:

Small Bowl: n=26, y=5.07 oz, s=1.87 oz

Big Bowl: n=22, y=6.58 oz, s=2.91 oz

Calculate the 90% confidence interval for the difference in portion size between the big and small bowl. Put the CI in a sentence.
Use the 4-step approach to test an appropriate hypothesis and answer the question: Did the bowl size change the selected portion size?

Please show all work. Typed work only. no handwritten.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

At an Ice Cream Store, a single scoop of ice-cream can be modeled by a hemisphere...

At an Ice Cream Store, a single scoop of ice-cream can be modeled by a hemisphere which is 1 inch tall. The ice-cream fits perfectly on top of a cone that is 4 inches tall and has a 1 inch radius at the top. 1. Write one equation in Cartesian coordinates (x, y, z) to describe the scoop and one equation for the cone. 2. If the mass of one scoop of ice cream is 60 grams and that the...

An ice cream shop sells five-scoop ice cream cones, allowing customers to pick which flavors they...

An ice cream shop sells five-scoop ice cream cones, allowing customers to pick which flavors they want stacked on their cone. The shop has the following ice cream flavors available: chocolate, vanilla, strawberry, mint & chocolate chip, rocky road, cookies & cream, cookie dough, cotton candy, butter pecan, birthday cake, and cherry. Note that customers can order a five-scoop cone with multiple scoops of the same flavor. a) How many five-scoop cones are possible if order of the ice cream...

2. Suppose a large size chocolate fudge ice cream gives 162 Calories. If an ice cream...

2. Suppose a large size chocolate fudge ice cream gives 162 Calories. If an ice cream contains 6.00 g of carbohydrate and 12.0 g of protein then find out grams of fat? [1g Fat = 9kcal, 1g Protein = 4kcal, and 1g Carbohydrate = 4kcal]

Izzy Ice Cream has the following price and cost information: Price per 2-scoop sundae $ 5.00...

Izzy Ice Cream has the following price and cost information: Price per 2-scoop sundae $ 5.00 Variable cost per sundae: Ingredients 1.35 Direct labor 0.45 Overhead 0.20 Fixed cost per month $ 8,100 Required: 1. Determine Izzy’s break-even point in units and sales dollars. 2. Determine how many sundaes must be sold to generate a profit of $16,200. 3. Calculate Izzy’s new break-even point for each of the following independent scenarios: a. Sales price decreases by $0.50. b. Fixed costs...

Izzy Ice Cream has the following price and cost information: Price per 2-scoop sundae $ 5.00...

What's your favorite ice cream flavor? For people who buy ice cream, the all-time favorite is...

What's your favorite ice cream flavor? For people who buy ice cream, the all-time favorite is still vanilla. About 30% of ice cream sales are vanilla. Chocolate accounts for only 13% of ice cream sales. Suppose that 174 customers go to a grocery store in Cheyenne, Wyoming, today to buy ice cream. (Round your answers to four decimal places.) (a) What is the probability that 50 or more will buy vanilla? (b) What is the probability that 12 or more...

This question regards the process of making ice cream with dry ice: How are thermodynamics involved...

This question regards the process of making ice cream with dry ice: How are thermodynamics involved in making the ice cream 'creamy' vs. 'grainy' (like what you get with freezer burned ice cream)?

Researchers are investigating how eye color affects trustworthiness. In their experiment, the researchers took photographs of...

Researchers are investigating how eye color affects trustworthiness. In their experiment, the researchers took photographs of 80 students, 40 of whom had brown eyes, and 40 of whom had blue eyes. They then recruited 105 participants, who judged each of the photographs on a 10 points trustworthiness scale (1pt=very untrustworthy, 10pts=very trustworthy). The mean score for brown-eyed students was 5.55, with a standard deviation of 1.68. For blue-eyed students the mean score was 4.62, with a standard deviation of 1.53....

In a survey, people were asked "Which flavor of ice cream do you like, chocolate or...

In a survey, people were asked "Which flavor of ice cream do you like, chocolate or vanilla?" The result is summarized in the following table. Each number is the frequency (count) falling into that cell. Chocolate Vanilla Neither Children 38 26 92 Teens 87 92 14 Adults 21 62 78 What is the percent of children who like chocolate ice cream among all the people responded in this survey? Round your answer to the nearest 0.01. Flag this Question Question...

Q2. According to a Bon Appetit poll, 38% of people prefer chocolate ice cream. Use the...

Q2. According to a Bon Appetit poll, 38% of people prefer chocolate ice cream. Use the binomial formula for calculating probabilities in a., b. and (ii). (i) If 10 people are chosen at random, a. What is the probability that none prefer chocolate ice cream? b. What is the probability that only one prefers chocolate ice cream? c. What is the probability that more than one prefer chocolate ice cream? d. What is the expected number that prefer chocolate ice...

Subjects