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3 years ago

A box of cereal states that there are 93 calories in a three fourths

Mathematics

1 answer:

cupoosta [38]3 years ago

7 0

93/3 = 31, 31 x 4= 124

Calories per cup is 124

There are 372 calories in three cups

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Descent, Inc., produces a variety of climbing and mountaineering equipment. One of its products is a traditional three-strand cl

Rainbow [258]

Solution :

Assuming $\sigma_1^2=\sigma_2^2$

We have to test

$H_0:\mu_1=\mu_2$

Against $H_a: \mu_1 \neq \mu_2$

Level of significance, $\alpha = 0.05$

$s_p=\sqrt{\frac{(n_1-1)s_1^2+ (n_2-1)s_2^2}{n_1+n_2-2}}$

$s_p=\sqrt{\frac{(25-1)(425)^2+ (20-1)(415)^2}{25+20-2}}$

= 420.6107

Under $H_0$ , the t-statistics is as follows:

$t=\frac{(\overline{x_1} - \overline{x_2})}{s_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}} \sim$ $\text{t with }(n_1+n_2-2) \ DF$

$t=\frac{(7200-7087)}{(420.6107)\sqrt{\frac{1}{25}+\frac{1}{20}}}$

= 0.90

DF = (25 + 20 - 2)

= 43

P-value of the test = 0.375

Since the p value is more than 0.05, we fail to reject our null hypothesis.

There is no difference between then mean tensile strength of the ropes that is produced in the Bozeman and Challis.

3 0

3 years ago

Write the standard form of the line that contains a slope of -3/2

Firdavs [7]

Answer:

3x + 2y = 12

Step-by-step explanation:

The standard form is expressed as Ax + By = C

5 0

2 years ago

Mrs.Isoceles has graded 20% of her 150 students papers how many papers does she still need to grade

Daniel [21]

The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)

3 0

3 years ago

Read 2 more answers

What is the slope of the line?

Xelga [282]

Answer:

3/4

Step-by-step explanation:

7 0

3 years ago

An equation is shown below:

gayaneshka [121]

6(2x-11)+15=3x+12 Given
12x-66+15=3x+12 Distribution
12x-51=3x+12 Combine like terms
12x=3x+63 addition
9x=63 subtraction
x=7 division

the value of x that makes the equation true is 7.

8 0

3 years ago