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4 years ago

HELP FAST. 40 points A. ABCD B. BCDA C. CDAB D. DABC

Mathematics

1 answer:

Natali5045456 [20]4 years ago

7 0

Based on the table, Problem A needs to be fixed in 24 hours (9 AM tomorrow). Problem B needs to be fixed in 24 hours (10 AM tomorrow). Problem C needs to be fixed in 12 hours (11 PM that night). Problem D needs to be fixed in 12 hours (11:30 PM that night). So the technician's order will be: C, D, A, B. This is the third choice.

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Ethan hits 4 ringers in 10 attempts while throwing horseshoes. What does an experimental probability of 2/5 describe?

enyata [817]

Answer: P (ringers)

Step-by-step explanation:

This probability is simplified from 4/10 to 2/5

Since he got 4 ringers out of 10 attempts

we can tell that this probability stands for Ringers

4 0

3 years ago

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

Translate the sentence into an equation.

murzikaleks [220]

Answer:

9 - 5x = 7

Step-by-step explanation:

Nine (9) less (-) then the product (*) of 5*x, equals (=) to 7

9 - 5x = 7

3 0

2 years ago

The distance between two points on a number line can be found by taking the _[blank 1]_ of the _[blank 2]_ of the coordinates.

Rom4ik [11]

The distance between two points on a number line can be found by taking the absolute value of the difference in the coordinates.

Range and Longitude are the units that represent the coordinates in the geographic coordinate system. To make a search, use the call of a place, metropolis, state, or cope with, or click on the vicinity on the map to find lat lengthy coordinates.

A geographic coordinate machine defines -dimensional coordinates based on this planet's surface. It has an angular unit of measure, prime meridian, and datum (which includes the spheroid). As proven in the picture below, traces of longitude have X-coordinates between -a hundred and eighty and +one hundred eighty levels.

The geographic coordinate gadget is a round or ellipsoidal coordinate device for measuring and communicating positions immediately on the earth as range and longitude. It is the only, oldest, and maximum extensively used of the variety of spatial reference structures that are in use, and paperwork is the premise for most others.

Learn more about coordinates here brainly.com/question/11337174

#SPJ4

3 0

2 years ago

The mean salary for a new teacher in your town is $48,000. You believe it is higher for new teachers in a neighboring town. Stat

nikklg [1K]

Answer:

Step-by-step explanation:

Given that the mean salary for a new teacher in your town is $48,000

You believe it is higher for new teachers in a neighboring town.

So to prove or disprove your claim you have to show statistical evidence.

For that hypothesis testing is necessary.

You must conduct a hypothesis test for comparing the mean of salary of new teacher with neighbouring places

The hypotheses wouldbe

$H_0: \mu = 48000\\H_1: \mu >48000$

where mu is the average for neighbouring states.

3 0

3 years ago