QUESTION 4 A group of potential customers were asked whether they preferred Coca-Cola products or Pepsi...

QUESTION 4

A group of potential customers were asked whether they preferred Coca-Cola products or Pepsi products. There gender was also noted on the form. The results are presented in the following table

Preference for Coke or Pepsi

Coke

Pepsi

Gender
Female
             121

             92

Male
             134

   85

What is P(Female) (Round your answer to three decimal places)?

QUESTION 5

Using the table from the previous problem, what is the probability of preferring Pepsi given the respondent is a male? (Round your answer to three decimal places)

QUESTION 6

For a normally distributed population with a mean of 40 and a standard deviation of 5 find P(38 < X < 41). Give your answer rounded to 3 decimal places.

QUESTION 7

A random sample of 100 employees at a company shows that 62 are female. Form a 90% confidence interval for the proportion of all employees who are female. The interval is 0.62 what margin of error? Round your answer to 3 decimal places.

Solutions

Expert Solution

orchestra answered 1 year ago

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Subjects

		Preference for Coke or Pepsi
		Coke	Pepsi
Gender	Female	121	92
Gender	Male	134	85