A student earns $7.50 per hour at her part-time job. She wants to earn at least $200.
1 answer:
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Option C is answer.
Step-by-step explanation:
Hey there!
Given;
<em>Mul</em><em>tiply</em><em> </em><em>"</em><em>-</em><em>6</em><em>"</em><em> </em><em>and</em><em> </em><em>"</em><em>2</em><em>"</em><em>.</em>
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<em>Shi</em><em>ft</em><em> </em><em>"</em><em>-</em><em>5</em><em>"</em><em> </em><em>on</em><em> </em><em>right</em><em> </em><em>side</em><em>.</em>
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Therefore, X = -7.
<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
Step-by-step explanation:
Given that evolution theory hypothesizes that people should spontaneously follow a 24-hour cycle of sleeping and wakingdash–even if they are not exposed to the usual pattern of sunlight.
Sample size n = 8
df = 8- 1=7
Since population std deviation is not known, and sample size is small we can use only t test
(two tailed test at 5% level of significance)
24
28
24
22
25
26
26
25
mean 25
sd 3.142857143
se 1.111167799
Test statistic = Mean diff/se = 1.595
p = 0.1546
since p >0.05, accept null hypothesis.
There is no evidence to prove that the steady cycle is different from 24 hours.