A local college cafeteria has a self-service soft ice cream machine. The cafeteria provides bowls that can hold up to 16 ounces of ice cream. The food service manager is interested in comparing the average amount of ice cream dispensed by male students to the average amount dispensed by female students. A measurement device was placed on the ice cream machine to determine the amounts dispensed. Random samples of 88 male and 80 female students who got ice cream were selected. The sample averages were 7.26 and 6.43 ounces for the male and female students, respectively. Assume that the population standard deviations are 1.23 and 1.17 ounces, respectively. a. Let u and u, be the population means of ice cream amounts dispensed by all male and female students at this college. respectively. What is the point estimate of 4 - H2? Point estimate of u - H2 = ounce(s) i

Q: a. Calculate the sample means. Xcorporate =[ XNavy =0 (Round to two decimal places as needed.)

A: The data shows the prices of the same items at a military commissary and a nearby corporate store.

Q: A marketing company offers to pay $5 to the first 100 people willing to respond to their…

A: Answer 2 .Convenience sample

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A: There are 153 out of 360 (n) elementary school children found as above grade level readers. The…

Q: what is the average number of traffic accidents

A: Discrete series means where frequency  of a variable are given but the variable is without class…

Q: The executives at Sandbachian, inc., having recently solved their widget crisis, have another…

A: Let ‘x’ be the no of defective manhole covers i.e x=40 and n=800 sample propotion (P)=x/n p=40/800…

Q: Read the description below and determine the method of sampling. Ask four classmates to rate the…

A: Answer is  Convenience

Q: An insurance company would like to determine the proportion of all medical doctors who have been…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the…

A: From the given information, The sample size is 100 viewers. Among 100 viewers, 36% indicated that…

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: Given X=300 n=1815

Q: A sample was done, collecting the data below. Calc 10 22 28 14

A: Given information: The sample data is provided as: x 10 22 28 14 7 It is to…

Q: In order to estimate the attendance at a 1,000,000 square foot mall, a sample of people is taken in…

A: We will solve the problem

Q: Suppose the Department of Energy in the Philippines surveyed 200 gasoline stations to determine the…

A: The number of gasoline stations surveyed =200. The average price per liter of special…

Q: Based on the sample, predict the number of adults in Palm City whose main source of news is…

A: In sample, number of adults whose main source of news is newspaper, X = 54 Sample size n =…

Q: Does this historgram follow a normal distributon and why? Based on the histogram, how many pigs…

A: Given a histogram showing the percentage of pigs and their weights in lbs.

Q: The american statistical association publishes a monthly magazine sent to all of its memebers. this…

A: Note: Hi there! Thank you for the question. As you have posted multiple sub-parts, we have solved…

Q: Male penguins that weigh more than 4710 grams are considered "desirable" because the extra fat means…

A: We need to find expected value of desirable penguins Let us find out probability of a desirable…

Q: What are the levels of measurement?

A: The levels of measurements are as follows: Nominal scale: Some variables classify the subjects of a…

Q: Although Nielsen Media research determined the precise proportion of all Americans watching the…

A: Given : Nielsen Media research determined the precise proportion of all Americans watching the super…

Q: An opaque jar contains 300 marbles, all either green or purple. Calista pulls out 10 marbles without…

A: # Given: no of marble in jar N=300  Sample of size n=10 drawn  No of purple marble in sample =2…

Q: What is the level of measurement for # 5 and 6?

A: Level of measurement

Q: We would like to determine the average height of the overall student body at Michigan State…

A: Yes, It is necessary to take a sample from the overall student body.

Q: estimate the sample size

A: An estimate of sample size: The appropriate sample size for estimating the mean of a variable from…

Q: estimate the sample size for a population of 750 people.

A: To estimate the sample size the required calculation can be defined by the formula  Slovin's…

Q: Addmissions officer sampled 124 entering freshmen and found that 35 of them scored less than 530 on…

A: According to the provided information, x=35 n=124

Q: What is the value of the standard score for the sample proportion?

A: If mean if the proportion us P And standard deviation is √(pq/n) Then standard score or Z score for…

Q: When calculating the sample size for a research study, a researcher should always round the final…

A: The statement is true.

Q: If we wanted a random sample of students in a cafeteria, why couldn't we just take the students who…

A: Answer: Here random word itself says that we couldn't just take the students who order coke with…

Q: To study the mean blood pressure of all people in her state, Christine samples the population by…

A:

Q: The executives at Sandbachian, Inc., has recently solved their widget crisis, have another problem…

A:

Q: Determine the statistical relationship between the average answer time (seconds) and the average…

A: Simple linear regression model: A simple linear regression model is given as y = b0 + bx, where y is…

Q: ple of 1000 Americans, it was discovered that 920 of them lived in neighborhoods with acceptable…

A: The point estimate (sample proportion) of the sample of size n can be defined as: p^=xn  Here, x =…

Q: examine four levels of measurement?

A: There are four levels of measurement  nominal ,ordinal  and interval /ratio  – with nominal being…

Q: What is the drawback of ordinal measurement?

A: The responses are often so narrow in reference to the question that they create or magnify bias…

Q: A quality control officer in a food processing factory selects every 20th jar of pickles from the…

A: In the above question food processing factory selects every 20th jar of pickles from the conveyor…

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 52% of the…

A: Givensample size(n)=100p^=0.47

Q: What is the test assumptions and make a decision?   Inferential statistic(s) and p-value(s)?…

A: X (X-xbar)^2 1103 24964 1219 1764 1345 7056 1258 9 1307 2116 1419 24964 1121 19600…

Q: 1. How many samples must be considered from a population of 28,000 students, if 5% margin of error…

A:

Q: In order to study the mean blood pressure of people in his town, Richard samples the population by…

A: We know that stratified sampling involves dividing the population into groups and randomly selecting…

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A:

Q: Obtain the standard error of difference of sample proportions.

A: ANSWER: For the given data,

Q: A recent study showed that the cost of buying a typical shopping basket of 40 food items for…

A: Given data is 8100,6600,6150,5100,4900Arrange the data in ascending…

Q: the number of observations and measurements taken is the sample size True or False

A: We have given that, the number of observations and measurements taken is the sample size?  True or…

Q: What is the test assumptions and make a decision?   Inferential statistic(s) and p-value(s)?…

A: X (X-xbar)^2 1103 24964 1219 1764 1345 7056 1258 9 1307 2116 1419 24964 1121 19600…

Q: If your target population is 123, how many samples do you need for a sampling error of .05 and a…

A:

Q: what is the conclusion ? Based on your decision, identify and explain the type of error you could…

A: Given Information: From the given data, Mean of number of choco chips in the pack of cookies is, x…

Q: What are the three levels of measurement?

A: The three levels of measurement are nominal, ordinal, and interval-ratio variables. Nominal scale:…

Q: What is the sample proportion

A: Claim: More than half of the population believes that passwords should be replaced with biometric…

Q: Give two reasons why it would be necessary to examine a sample of the shirts produced rather than…

A: Give two reasons why it would be necessary to examine a sample of the shirts produced rather than…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.