(Answered) The life spans of a species of fruit fly have

Statistics

The life spans of a species of fruit fly have a? bell-shaped distribution, with a mean of 33 days and a standard deviation of 4 days.

(a) The life spans of three randomly selected fruit flies are 34 ?days, 31 ?days, and 45 days. Find the? z-score that corresponds to each life span. Determine whether any of these life spans are unusual.

?(b) The life spans of three randomly selected fruit flies are 29 ?days, 25 ?days, and 45 days. Using the Empirical? Rule, find the percentile that corresponds to each life span.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92849727
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Size of accounts receivable lo1 the arizona bay corporation

Size of Accounts Receivable [LO1] The Arizona Bay Corporation sells on credit terms of net 30. Its accounts are, on average, four days past due. If annual credit sales are $9.75 million, what is the company's balance she ...

You are considering an investment in a 40-year security the

You are considering an investment in a 40-year security. The security will pay $25 a year at the end of each of the first three years. The security will then pay $30 a year at the end of each of the next 20 years. The no ...

Many high school students take the ap tests in different

Many high school students take the AP tests in different subject areas. In 2007, of the 144,796 students who took the biology exam 84,199 of them were female. In that same year, of the 211,693 students who took the calcu ...

A student is gathering data on the driving experiences of

A student is gathering data on the driving experiences of other college students. One of the variables measured is the type of car the student drives. These data are coded using the following method: 1 = subcompact, 2 = ...

You are given the sample mean and the population standard

You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. A random sample of 44 gas grills has a mean price of $6 ...

Suppose that in a random sample of 100 men between the ages

Suppose that, in a random sample of 100 men between the ages of 60 and 79, you found that 20 had heart disease. According to the central limit theorem, the sample proportion arises from a sampling distribution that is no ...

If the lengths of male skis and female skis are used to

If the lengths of male skis and female skis are used to construct a? 95% confidence interval for the difference between the two population? means, the result is 14.32cm

A random sample ofnbsp77nbspeighth grade students scores on

A random sample of 77 eighth grade? students' scores on a national mathematics assessment test has a mean score of 290. This test result prompts a state school administrator to declare that the mean score for the? state' ...

Why does a high standard deviation of a stocks rate of

Why does a high standard deviation of a stock's rate of return mean that that stock is risky? Explain. (Hint: Intuitively explain how we calculate standard deviation and what does it mean)

Staples has six special drafting pencils for sale two of

Staples has six special drafting pencils for sale, two of which are defective. A student buys two of these six drafting pencils, selected at random. Let the random variable X be the number of defective pencils. Construct ...

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

Recent Questions

Ask Statistics and Probability Expert