It is known that about 4.5% of the world is color blind. Suppose a sample of...

It is known that about 4.5% of the world is color blind. Suppose a sample of 63 people is taken, 7 of whom are color blind.

What are the appropriate hypotheses to test the claim that the proportion of people who are colorblind is more than 4.5% at the α = .05 level?

Calculate the test statistic.

Find the critical value and p-value.

What is the correct conclusion based on the test?

Solutions

Expert Solution

please like ??

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Medical literature says that about 8% of males are color-blind. A university’s introductory psychology course is...

Medical literature says that about 8% of males are color-blind. A university’s introductory psychology course is taught in a large lecture hall. Among the students, there are 320 males. Each semester when the professor discusses visual perception, he shows the class a test for color blindness. The percentage of males who are color-blind varies from semester to semester. Let p = proportion of males that are color blind. Consider the sampling distribution of for a random sample of n =...

The probability that a male will be color-blind is 0.046. Find the probabilities that in a...

The probability that a male will be color-blind is 0.046. Find the probabilities that in a group of 53 men, the following will be true. a. Exactly 5 are color-blind. b. No more than 5 are color-blind. c. At least 1 is color-blind.

a) Color blindness is an X-linked trait. A female who is color blind marries a male...

a) Color blindness is an X-linked trait. A female who is color blind marries a male with no history of the condition. Show the problem. Of their children, what proportion would be expected to be color blind? Are these sons or daughters or both? Are any children carriers (having the gene, but not expressing the condition)? Are these sons or daughters or both? b)In sea horses long tail is dominant to short, and thick scales is dominant to thin. Cross...

In a survey of 177 people, the following data were obtained relating gender to color-blindness: Color-Blind...

In a survey of 177 people, the following data were obtained relating gender to color-blindness: Color-Blind (C) Not Color - Blind Total Male (M) 92 36 128 Female (F) 33 16 49 Total 125 52 177 A person is randomly selected. What is the probability that the person is: a) Male? b) Male and Color-blind? c) Male given that the person is Color-blind? d) Color-blind given that the person is Male? e) Female given that the person is not Color-blind? ...

A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal...

A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was six feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their daughters might be expected to be color-blind and of normal height? Justify your answer.

If a colorblind man marries a normal vision woman and have color blind daughter. What is...

If a colorblind man marries a normal vision woman and have color blind daughter. What is the probability that their next child will be color blind? What is the probablity that their next child will have normal vision?

PRACTICE ANOTHER Suppose that a category of world class runners are known to run a marathon...

PRACTICE ANOTHER Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 149 minutes with a standard deviation of 12 minutes. Consider 49 of the races. Let X = the average of the 49 races. Find the 70th percentile for the average of these 49 marathons. (Round your answer to two decimal places.)

Suppose that a category of world class runners are known to run a marathon (26 miles)...

Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 145 minutes with a standard deviation of 15 minutes. Consider 49 of the races. Let X = the average of the 49 races. Part (a) Give the distribution of X. (Round your standard deviation to two decimal places.) X~ Part (b) Find the probability that the runner will average between 143 and 148 minutes in these 49 marathons. (Round your...

Suppose that a category of world class runners are known to run a marathon (26 miles)...

Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 146 minutes with a standard deviation of 12minutes. Consider 49 of the races. Let X = the average of the 49 races. a)Give the distribution of X. (Round your standard deviation to two decimal places.) X~___(___,___) b)Find the probability that the average of the sample will be between 145 and 148 minutes in these 49 marathons. (Round your answer to...

Suppose that a category of world class runners are known to run a marathon (26 miles)...

Suppose that a category of world class runners are known to run a marathon (26 miles) in an average of 141 minutes with a standard deviation of 12 minutes. Consider 49 of the races. Let X = the average of the 49 races. Part (a) Give the distribution of X. (Round your standard deviation to two decimal places.) X ~ , Part (b) Find the probability that the runner will average between 138 and 142 minutes in these 49 marathons....

Subjects