μ: Mean of variable H0: μ = 30 HA: μ ≠ 30 Hypothesis test results:   Variable Sample Mean Std. Err. DF T-Stat P-value Speed 29.01875 0.59548431 15 -1.6478184 0.1202   1) Check the three conditions that allow you to calculate the test statistic using one sentence for each condition. Should you continue this hypothesis test? calculate the test statistic. First, calculate the sample mean and sample standard deviation using StatCrunch and do not round these values. Next, show the work necessary to obtain the test statistic by typing all your steps and providing the resulting test statistic. Do not round anything during the calculation. Then, round the test statistic to three decimal places after you complete the calculation.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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μ: Mean of variable
H0: μ = 30
HA: μ ≠ 30
Hypothesis test results:

 

Variable

Sample Mean

Std. Err.

DF

T-Stat

P-value

Speed

29.01875

0.59548431

15

-1.6478184

0.1202

 

1) Check the three conditions that allow you to calculate the test statistic using one sentence for each condition. Should you continue this hypothesis test?

calculate the test statistic. First, calculate the sample mean and sample standard deviation using StatCrunch and do not round these values. Next, show the work necessary to obtain the test statistic by typing all your steps and providing the resulting test statistic. Do not round anything during the calculation. Then, round the test statistic to three decimal places after you complete the calculation.

 

A marine biology professor was asked how fast the stingray (the fish, not the car) swims. She
stated that a stingray's top speed is 30 miles per hour. A student wanted to test the claim that the
average top speed of a stingray is not 30 miles per hour by collecting a random sample of 16
stingrays and measuring their top speed. The data set "Stingray Speed" is posted in StatCrunch.
Using a = 0.10, is there sufficient evidence to conclude the average top speed of a stingray
different from professor's answer. Conduct a full hypothesis test by following the steps below.
Enter an answer for each of these steps in your document. You can assume the population size
of all stingrays is extremely large.
Transcribed Image Text:A marine biology professor was asked how fast the stingray (the fish, not the car) swims. She stated that a stingray's top speed is 30 miles per hour. A student wanted to test the claim that the average top speed of a stingray is not 30 miles per hour by collecting a random sample of 16 stingrays and measuring their top speed. The data set "Stingray Speed" is posted in StatCrunch. Using a = 0.10, is there sufficient evidence to conclude the average top speed of a stingray different from professor's answer. Conduct a full hypothesis test by following the steps below. Enter an answer for each of these steps in your document. You can assume the population size of all stingrays is extremely large.
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