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Alborosie
3 years ago
9

PLS HELP IM DUMB lol

Mathematics
1 answer:
Irina18 [472]3 years ago
4 0
No you are not divide it 2400÷3
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A researcher wishes to see if the average weights of newborn male infants are higher than the
faltersainse [42]

Answer:

The  p-value is  p-value  =   0.62578

Step-by-step explanation:

From the question we are told that    

    The  sample size of male infant is  n_1 =  12

     The  sample size of female infant is n_2= 9

     The sample mean of male infant is  \= x_1 =  7.70 \ lb

      The sample mean of female infant is  \= x_2 =  7.80 \  lb

     The population standard deviation is  \sigma  =  0.5

       The significance level is  \alpha  =  0.05

The null hypothesis is  H_o  :  \mu_ 1 = \mu_2

The  alternative hypothesis is  H_1 :  \mu_1 > \mu_2

The  test statistics is mathematically represented as

            t =\frac{\= x_1 - \= x_2 }{\sqrt{\frac{\sigma }{n_1} } + \frac{\sigma }{n_2} } }

=>          t = \frac{7.70 -7.80}{\sqrt{\frac{0.5 }{12} } + \frac{0.5 }{9} } }

=>        t = -0.3207

From the z-table  the p-value is  obtained, the value is  

     p-value  =  P(Z > -0.3207)  = 0.62578

     p-value  =   0.62578

5 0
3 years ago
After a company celebrated its ten year anniversary, the president of the company wanted to know how long employees have been wi
finlep [7]

Step-by-step explanation:

The measures of variability is blank, the number that best summarizes the data is blank, and the number that best describes how the data varies is blank

Please send the box plot, I can solve it then but there is not enough info right here. Sorry!

7 0
3 years ago
Eric Bella Joan or Maya PLEASE HELP
TEA [102]
Joan did 21 is not a prime number good luck!!!
3 0
3 years ago
Help ASAP show work please thanksss!!!!
Llana [10]

Answer:

\displaystyle log_\frac{1}{2}(64)=-6

Step-by-step explanation:

<u>Properties of Logarithms</u>

We'll recall below the basic properties of logarithms:

log_b(1) = 0

Logarithm of the base:

log_b(b) = 1

Product rule:

log_b(xy) = log_b(x) + log_b(y)

Division rule:

\displaystyle log_b(\frac{x}{y}) = log_b(x) - log_b(y)

Power rule:

log_b(x^n) = n\cdot log_b(x)

Change of base:

\displaystyle log_b(x) = \frac{ log_a(x)}{log_a(b)}

Simplifying logarithms often requires the application of one or more of the above properties.

Simplify

\displaystyle log_\frac{1}{2}(64)

Factoring 64=2^6.

\displaystyle log_\frac{1}{2}(64)=\displaystyle log_\frac{1}{2}(2^6)

Applying the power rule:

\displaystyle log_\frac{1}{2}(64)=6\cdot log_\frac{1}{2}(2)

Since

\displaystyle 2=(1/2)^{-1}

\displaystyle log_\frac{1}{2}(64)=6\cdot log_\frac{1}{2}((1/2)^{-1})

Applying the power rule:

\displaystyle log_\frac{1}{2}(64)=-6\cdot log_\frac{1}{2}(\frac{1}{2})

Applying the logarithm of the base:

\mathbf{\displaystyle log_\frac{1}{2}(64)=-6}

5 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
aalyn [17]
D as you distribute the 11 to multiply it by 23 and get -11x
4 0
3 years ago
Read 2 more answers
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