The main reason behinds anyone tallness or shortness is the amount of secretion of pituatory hormone. In that case it depends on your body and u cannot do nothing.

7 0

4 years ago

A geneticist claims that four species of fruit flies should appear in the ratio

Gemiola [76]

There are sufficient evidences which are of 5% significance level to reject the claim.

<h3>What is chi-square test?</h3>

A statistical test used to compare observed results with expected results is referred to as the chi-square test.

According to the given scenario,

Ratio = 1:3:3:9
Sample size = 2000
Samples = 110, 345, 360, and 1185

To calculate:

Evidence to make conclusion to the geneticist's claim.

Total fruits = 1 + 3 + 3 + 9 = 16

As per the expected number of fruit flies

Each species = 1/16(2000) = 125.3/16(2000) = 375.3/16(2000) = 375.9/16(2000)

Each species = 1125

According to Chi-Square test -

$X^{2} =\epsilon\frac{(O_{i}-E_{i})^{2} }{E_{i}}$

$X^{2}$ = ( 110 - 125)²/125 + ( 345 - 375)²/375 + ( 360 - 375)²/375 + ( 1185 - 1125)²/1125

$X^{2}$ = (15)²/125 + (30)²/375 + (15)²/375 + (60)²/1125

$X^{2}$ = 8

with df = 4 - 1 = 3, and P( x² > 8) = 0.0460.

Thus, with a P-value, it is small, indicates 5% significance level to reject the claim.

For more details regarding the chi-square test, visit:

brainly.com/question/14082240

#SPJ4

4 0

2 years ago

The emt is appropriately sizing the airway when she measures:

MariettaO [177]

<span>The emt is appropriately sizing the airway when she measures <u>the distance from the nose to the earlobe.</u>
These emergency medical technicians are obviously trained when it comes to these medical issues, and know how to properly size the airway. In this case, when it comes to the nose airway, this distance between the nose and the earlobe is the way to go.</span>

4 0

3 years ago