The article “Well-Fed Crickets Bowl Maidens Over” (Nature Science Update, February 11, 1999) reported that female field crickets are attracted to males with high chirp rates and hypothesized that chirp rate is related to nutritional status. The usual chirp rate for male field crickets was reported to vary around a mean of 60 chirps per second. To investigate whether the chirp rate was related to nutritional status, investigators fed 22 male crickets a high protein diet for 8 days, after which chirp rate was measured.Let: The parameter μμ be the mean chirp rateof male crickets on a high protein diet for 8 days. Given:The mean chirp rate for the random sample of crickets on the high protein diet was reported to be 65.32 chirps per second with a standard deviation of 12.Research Question:Is there convincing evidence that the mean chirp rate for crickets on a high protein diet implies an advantage in attracting the ladies?It is known that the researchers did not want to risk a Type I error of more than 5% 1.1 what is the alternative hypothesis1.2What assumption is needed to run a parametric test for this research project?Assume that the population distribution of male field crickets follows the tt distribution.Assume that the population of male field crickets follows a normal distribution.Assume that the population of chirp rate follows a normal distribution.Assume that the population distribution of the chirp rate follows the tt distribution.1.3 Calculate the value of the test statistic.

Given data : sample size, n = 22 sample mean, x̄ = 65.32 sample standard…

Answered: The article “Well-Fed Crickets Bowl…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

The article “Well-Fed Crickets Bowl Maidens Over” (Nature Science Update, February 11, 1999) reported that female field crickets are attracted to males with high chirp rates and hypothesized that chirp rate is related to nutritional status. The usual chirp rate for male field crickets was reported to vary around a mean of 60 chirps per second. To investigate whether the chirp rate was related to nutritional status, investigators fed 22 male crickets a high protein diet for 8 days, after which chirp rate was measured.

Let:

The parameter μμ be the mean chirp rate
of male crickets on a high protein diet for 8 days.

Given:

The mean chirp rate for the random sample of crickets on the high protein diet was reported to be 65.32 chirps per second with a standard deviation of 12.

Research Question:

Is there convincing evidence that the mean chirp rate for crickets on a high protein diet implies an advantage in attracting the ladies?
It is known that the researchers did not want to risk a Type I error of more than 5%

1.1 what is the alternative hypothesis

1.2

What assumption is needed to run a parametric test for this research project?

Assume that the population distribution of male field crickets follows the tt distribution.
Assume that the population of male field crickets follows a normal distribution.
Assume that the population of chirp rate follows a normal distribution.
Assume that the population distribution of the chirp rate follows the tt distribution.

1.3 Calculate the value of the test statistic.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution