Tate works at an ice cream stand. Every customer can choose one of two toppings-sprinkles or chocolate chips. He recorded the age group and the chosen topping for a random sample of 120 customers. Here are the results: Age group Sprinkles Chocolate chips Neither Total Children 27 38 7 72 Adults 13 22 13 48 Total 40 60 20 120 Tate wants to perform a x test of independence between age and topping. What is the expected count for the cell corresponding to adults that chose sprinkles? You may round your answer to the nearest hundredth. Expected:

Tate works at an ice cream stand. Every customer can choose one of two toppings-sprinkles or chocolate chips. He recorded the age group and the chosen topping for a random sample of 120 customers. Here are the results: Age group Sprinkles Chocolate chips Neither Total Children 27 38 7 72 Adults 13 22 13 48 Total 40 60 20 120 Tate wants to perform a x test of independence between age and topping. What is the expected count for the cell corresponding to adults that chose sprinkles? You may round your answer to the nearest hundredth. Expected:

Name: Tate works at an ice cream stand. Every customer can choose one of tw
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Tate works at an ice cream stand. Every customer can choose one of two toppings-sprinkles or chocolatechips. He recorded the age group and the chosen topping for a random sample of 120 customers. Here arethe results:Age group Sprinkles Chocolate chi

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A manufacturer of colored candies states that 13% of the candies in a bag should be brown, 14% yellow, 13% red, 24% blue, 20% orange, and 16% green. A student randomly selected a bag of colored candies. He counted the number of candies of each color and obtained the results shown in the table. Test whether the bag of colored candies follows the distribution stated above at the a = 0.05 level of significance. Click the icon to view the table. = 22.323 (Round to three decimal places as needed.) What is the P-value of the test? P-value = 0.000 (Round to three decimal places as needed.) Based on the results, do the colors follow the same distribution as stated in the problem? A. Do not reject Ho. There is sufficient evidence that the distribution of colors is not the same as stated by the manufacturer. В. Do not reject Ho. There is not sufficient evidence that the distribution of colors is not the same as stated by the manufacturer. Reject Ho. There is not sufficient evidence that the…
A manufacturer of colored candies states that 13% of the candies in a bag should be brown, 14% yellow, 13% red, 24% blue, 20% orange, and 16% green. A student randomly selected a bag of colored candies. He counted the number of candies of each color and obtained the results shown in the table. Test whether the bag of colored candies follows the distribution stated above at the a = 0.05 level of significance. Click the icon to view the table. Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: The distribution of colors is the same as stated by the manufacturer. H,: The distribution of colors is not the same as stated by the manufacturer. B. Ho: The distribution of colors is not the same as stated by the manufacturer. : The distribution of colors is the same as stated by the manufacturer. Hyi O C. None of these.
A gym manager is interested in whether the ‘beginner’ and ‘expert’ climbing walls (that were of the same height) at her facility are actually different from each other. To test this, she decides to look at the time it takes people to reach the top of both walls. She recruits 25 students and has them each climb both walls and looks for differences between the ‘beginner’ wall climbing times and the ‘expert’ wall climbing times. Select one: a. single sample t-test b. one-way ANOVA c. paired samples t-test d. z-test e. factorial ANOVA f. t-test independent means
You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 296 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.10. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Cars in Each Lane Outcome Frequency Expected Frequency Lane 1 73 Lane 2 63 Lane 3 Lane 4 85 75 b. What is the correct statistical test to use? Select an answer c. What are the null and alternative hypotheses? Ho: O The traffic and lanes are dependent. O The traffic and lanes are independent. O The distribution of traffic is not uniform. OThe distribution of traffic is uniform. H₁: O The traffic and lanes are dependent. O The distribution of traffic is not uniform. O The distribution of traffic is uniform. O The traffic and lanes are independent. d. The degrees of freedom = e. The test-statistic for this data = (Please show your answer to three decimal places.)
Find the standardized test , z to test the claim that p1 = p2. The sample statistics listed below are from independent samples.
A manufacturer of colored candies states that 13% of the candies in a bag should be brown, 14% yellow, 13% red, 24% blue, 20% orange, and 16% green. A student randomly selected a bag of colored candies. He counted the number of candies of each color and obtained the results shown in the table. Test whether the bag of colored candies follows the distribution stated above at the a = 0.05 level of significance. Click the icon to view the table. Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: The distribution of colors is not the same as stated by the manufacturer. H,: The distribution of colors is the same as stated by the manufacturer. Observed Distribution of Colors B. Ho: The distribution of colors is the same as stated by the manufacturer. H,: The distribution of colors is not the same as stated by the manufacturer. Colored Candies in a bag C. None of these. Color Brown Yellow Red Blue Orange Green Frequency Claimed Proportion 60 65 55 63 78 65…
Each box of one brand of breakfast cereal contains a coupon entitling purchasers to a free package of vegetable seeds. At the home office, they use the weight of the incoming mail to determine the number of employees to be assigned to collecting coupons and sending out seed packages each day. (The company policy is that all mail received will be answered the same day.) Following is the data for a random sample of 8 days: Weight of(pounds) 10 20 16 6 12 18 23 25 Number of employees 6 10 9 5 8 14 13 16 a.Draw a scatter diagram for the data and discuss its shape. b.Using Excel conduct the following regression modules for the data: I.Linear II.Quadratic III.Third degree polynomia lIV.Exponentia lV.Logarithmic VI.Power c.Determine which model is the best and state the reason for your choice. d.What percentage of the variation in the number of employees is explained by the regression model chosen? e.If the company receives 15 pounds of mail, how many employees should be assigned…
You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 372 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.10. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Cars in Each Lane Outcome Frequency Expected Frequency Lane 1 89 Lane 2 90 Lane 3 92 Lane 4 101
A coffee machine dispenses coffee into paper cups. You're supposed to get 10 ounces of coffee, but the amount varies slightly from cup to cup. Here are the amounts measured in a random sample of 20 cups. 9.9 9.7 10.0 10.1 9.9 9.6 9.8 9.8 10.0 9.5 9.7 10.1 9.9 9.6 10.2 9.8 10.0 9.9 9.5 9.9 b. Discuss the conditions for inference.
Personality preferences for a random sample of 519 people in the listed professions are shown in the following table. T refers to THINKING and F refers to FEELING. Use the chi-square test to determine if the listed occupations and personality preferences are independent at the 0.01 level of significance. Occupation T F Row Total Clergy 57 91 148 M.D. 77 82 159 Lawyer 118 94 212 Column Total 252 267 519
You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 296 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.10. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Cars in Each Lane Outcome Frequency Expected Frequency Lane 1 73 Lane 2 59 Lane 3 79 Lane 4 85 b. What is the correct statistical test to use? Select an answer < c. What are the null and alternative hypotheses? Ho: The traffic and lanes are independent. The distribution of traffic is not uniform. The distribution of traffic is uniform. The traffic and lanes are dependent. H1: The traffic and lanes are independent. O The distribution of traffic is uniform. The distribution of traffic is not uniform. The traffic and lanes are dependent.
A coffee machine dispenses coffee into paper cups. You're supposed to get 10 ounces of coffee, but the amount varies slightly from cup to cup. Here are the amounts measured in a random sample of 20 cups. 9.9 9.7 10.0 10.1 9.9 9.6 9.8 9.8 10.0 9.5 9.7 10.1 9.9 9.6 10.2 9.8 10.0 9.9 9.5 9.9 f. What is the critical value needed to use if we want to construct a 95% confidence interval? DU tis type your answer...