All categories

4 years ago

Harry and Gwen ride in a bicycle race. Harry clocks 102.62 meters per

Mathematics

1 answer:

Daniel [21]4 years ago

4 0

Subtract tchem both and wilk get the answer

102.62-101.94=0.68

You might be interested in

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

A farmer wants to know whether a new fertilizer has increased the mean weight

ladessa [460]

Answer:

jsnejwjsnsjsjsjsbshsshhsnwmwkwkwnsndhdbr

7 0

3 years ago

What is the domain of g

Yuki888 [10]

Look at the picture.

Domain -7 ≤ t ≤ 7

Range -9 ≤ y ≤ 9

8 0

3 years ago

Concessions at a basketball game cost $1 for a bag of chips and $2.50 for nachos.At the end of the night, 188 items are sold for

Ivenika [448]

Answer: 305 bags of chips were sold

Step-by-step explanation:

6 0

2 years ago

One number is 3 less than 4 times a second number. The difference of the first number and twice the second number is 7. What are

Nikolay [14]

Answer:

atq= let no.be x and y

x= 4y-3.......(1)

x-2y=7....(2)

subtracting both eqn

x-x+2y=4y-3-7

2y=4y-10

-2y= -10

y=5 ........second no.

first no...x=7+2y=7+10=17.......first no....

5 0

3 years ago