Mathematics: I need help please please :((

I need help please please :(( - id7371907, jeff568463

mtassy85

01.02.2022

9^-16

Step-by-step explanation:

If an exponents have the same base and are being multiplied together, all you do is just add the exponents and make the base stay the same

9 $9^{-53} * 9^{37} = 9^{-16}$

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Ddom

11.01.2020

Using the hypothesis test for one sample mean, There is NO SIGNIFICANT EVIDENCE to support the typist's claim

$H_{0} = 45\\H_{1} < 45\\\\$

The test statistic :

T = (x - μ) ÷ (s/√(n))

T = (43 - 45) ÷ (15/√70)

T = - 2 ÷ 1.7928429

T = -1.12

At α = 0.05

Pvalue :

Degree of freedom, df = 70 - 1 = 69

Pvalue = 0.1333

Decision region :

Reject $H_{0}$ if Pvalue < α

0.1333 > 0.05

Since Pvalue > α We fail to reject the Null

Learn more on hypothesis testing:

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