All categories

2 years ago

Please tell me fast I am on a time crunch

Mathematics

1 answer:

gregori [183]2 years ago

6 0

X< -6
Solve for the inequality x

You might be interested in

Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .10 significa

nata0808 [166]

Answer:

The test statistics is $t = -1.40$

The critical value is $Z_{\alpha } = 2.33$

The null hypothesis is rejected

Step-by-step explanation:

From the question we are told that

The sample size for men is $n_1 = 80$

The sample proportion of men that own a cat is $\r p _M = 0.40$

The sample size for women is $n_2 = 80$

The sample proportion of women that own a cat is $\r p_F = 0.51$

The level of significance is $\alpha = 0.10$

The null hypothesis is $H_o : \r p _M = \ r P_F$

The alternative hypothesis is $H_a : \r p _M < \r p_F$

Generally the test statistic is mathematically represented as

$t = \frac{(\r p_M - \r p_F)}{\sqrt{\frac{(p_M*(1-p_M)}{n_1 } } + \frac{p_F*(1-pF)}{n_2 } }$

=> $t = \frac{(0.40 - 0.51)}{\sqrt{\frac{(0.40 *(1-0.41)}{80} } + \frac{0.51*(1-0.51)}{80 } }$

=> $t = -1.40$

The critical value of $\alpha$ from the normal distribution table is

$Z_{\alpha } = 2.33$

The p-value is obtained from the z-table ,the value is

$p-value = P( Z < -1.40) = 0.080757$

=> $p-value = 0.080757$

Given that the $p-value < \alpha$ then we reject the null hypothesis

7 0

3 years ago

The equation of a circle is (x - 4)2 + (y - 2)2 = 9. Determine the coordinates of the center of the circle.

Georgia [21]

The equation of a circle is (x - a)² + (y - b)² = r², where the coordinates of the center(C) are C(a,b) and "r" the radius. Here, C(4,2) and if you need, r=3.

Thanks for your trust!!

4 0

4 years ago

If the car you bought in question 3 had a sales price of $45,000, how much interest did you end up paying in the end?

Roman55 [17]

This is a backup question it would be great to state what question 3 was please

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=x%20-%204%20%3D%2018" id="TexFormula1" title="x - 4 = 18" alt="x - 4 = 18" align="absmiddle" c

lesantik [10]

It should be 15 xymanajsdfood

7 0

4 years ago

Read 2 more answers

Tammy rents a storage shed. The storage shed is in the shape of a rectangular prism with measurements as shown. A rectangular pr

lesantik [10]

Answer:

Finding the product of 9, 10 and 9 ; 810

Step-by-step explanation:

Given that :

Length = 10 feets

Width = 9 feets

Height = 9 feets

The volume of a rectangular prism is obtained by :

Length * width * height

The volume could be obtained by taking the product of 10, 9 and 9

Hence, the volume of the rectangular prism is :

(10 * 9 * 9) feet³ = 810 feet³

Number of 1 feet³ boxes = 810 feet³ / 1 feet³ = 810

5 0

3 years ago