Answer:D’ (0, -1)
Step-by-step explanation:
The test statistic z will be equal to -0.946 and it shows that there is no significant difference in the proportion of rehires between full time and part time.
Given sample sizes of 833 and 386 and result of samples 434 and 189.
Proportion of full time=434/833=0.52
Proportion of part time=189/386=0.49.
Difference in proportion =0.52-0.49
TTF- i∈ rho=0
TTF+i∈ rho≠0.
Mean of difference=0.03
Z=(X-μ)/σ
σ=
=0.0317
σ=0.0317
z=(0-0.03)/0.0317
=-0.03/0.0317
=-0.317
p value will be =0.1736.
Because p value is greater than 0.01 so we will accept the null hypothesis which shows that there is no significant difference in the proportions.
Hence there is no significant difference in the proportion of rehires between full time and part time.
Learn more about z test at brainly.com/question/14453510
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Answer:
sample mean:: 17.92
ME = z*s/sqrt(n) = 1.8807*6.35/sqrt(47) = 1.7421
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Step-by-step explanation:
To find the answer of that, you need to multiply 6 4/15 by 5 (can be counted as 5/1)
that will need some steps
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step1) convert the mixed numbers into fractions (inproper)
6 4/15 will be converted into 94/15. (this step is explained at the bottom)
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step2) normally multiply numerator with numberator and denominator with denominator.
the answer will be 470/15 which will be simplified into 94/3
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step3) covert the fraction back to mixed number
that will make it 31 3/4 (but in decimal wise, it will be 31.3 on repeat)
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to convert a mixed number into a fraction you will need to:
multiply the denominator with the whole number, and then add the numerator. the denominator of that fraction will be the same denominator it had before.
for example: to convert 3 1/4 into a fraction (improper) you will need to multiply the denominator (4) with the whole number (3) so that will make 12. next you will add the numerator (1) which will make it 13/?. 13 over what? 13 over the same denominator it had before. lets go back and see. so it had 4 as a denominator, so it will be 13/4.
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hope this hepled!! brainliest? i need it tho.. :(-<-< :)-<-<
Answer:
75% of the students at the Moore school are are learning to play a stringed instrument.
Step-by-step explanation:
We are given the following in the question:
Total number of students at Moore school = 360
Number of students learning stringed instrument = 270
We have to find the percentage of the students who are learning to play a stringed instrument.
Percentage =
Thus, 75% of the students at the Moore school are are learning to play a stringed instrument.
