Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Chi-square test for goodness of fit.

A developmental psychologist would like to determine whether infants display any colour preferences. A stimulus consisting of four colour patches (red, green, blue, and yellow) is projected onto the ceiling above a crib. Infants are placed in the crib, one at a time, and the psychologist records how much time an infant spends looking at each of the four colours. The colour that receives the most attention during a 100-second test period is identified as the preferred colour for that infant. The preferred colours for a sample of 60 infants are shown in the following table:

 

RED

GREEN

BLUE

YELLOW

21

11

18

10

Do the data indicate any significant preferences among the four colours? Test at the .05 level of significance.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919836

Have any Question? 


Related Questions in Statistics and Probability

Reliability the data that we collect is not useful unless

Reliability : The data that we collect is not useful unless we know that it is reliable and valid. Think of the judges on the TV show Dancing with the Stars. (There are three or four judges. Each week each judge scores e ...

Using the table below compute the spearman rank correlation

Using the table below, compute the spearman rank correlation coefficient for the aggressiveness scores. Does this suggest that both twins tend to be similar in degrees of aggressiveness? Twin set 1 st  born aggressivenes ...

1 how did commerce at this stage of societal development

1. How did commerce at this stage of societal development influence the decisions/actions of governments? Some very specific results of these decisions influenced the circumstances we have today. Be sure to include addit ...

The us express reported that the color distribution for

The US Express reported that the color distribution for plain M&M's was: 40%brown, 20% yellow, 20% orange, 10% green, and 10% tan. Each piece of candy in a random sample of 100 plain M&M's was classified according to col ...

In a survey of 617males agesnbsp18-64 396 say they have

In a survey of 617males ages 18-64, 396 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the co ...

1 in a pulse rate research a simple random sample of 120

1. In a pulse rate research, a simple random sample of 120 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pul ...

A teacher wants to estimate the average pa of all teachers

A teacher wants to estimate the average pa of all teachers in a district. She wants to be 95% sure her estimate is correct. The standard deviation is $1,000, how large must her sample be to be accurate within $200? Pleas ...

Suppose a firm that produces light bulbs wants to know

Suppose a firm that produces light bulbs wants to know whether it can say that its light bulbs typically last more than 1500 hours. Hoping to find support for their claim, the firm collects a random sample of n = 25 ligh ...

1 under what conditions is the median a more meaningful

1. Under what conditions is the median a more meaningful measure of central tendency than the mean? 2. Why do researchers prefer the standard deviation as a measure of variability over the range?

How do you interpret the p-values in a regression output

How do you interpret the p-values in a regression output? What does a p-value of .0495 mean? What significance level is this?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen