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Oliga [24]
3 years ago
5

Don’t understand #3 please help quickly

Mathematics
1 answer:
iris [78.8K]3 years ago
8 0

Answer:

the answer is b

Step-by-step explanation:

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A university administrator was interested in determining if there was a difference in the distance students travel to get from c
eduard

Answer:

1) Fail to reject the Null hypothesis

2) We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.

Step-by-step explanation:

A university administrator wants to test if there is a difference between the distance men and women travel to class from their current residence. So, the hypothesis would be:

H_{o}: \mu_{F}-\mu_{M}=0\\\\ H_{a}: \mu_{F}-\mu_{M}\neq 0

The results of his tests are:

t-value = -1.05

p-value = 0.305

Degrees of freedom = df = 21

Based on this data we need to draw a conclusion about test. The significance level is not given, but the normally used levels of significance are 0.001, 0.005, 0.01 and 0.05

The rule of the thumb is:

  • If p-value is equal to or less than the significance level, then we reject the null hypothesis
  • If p-value is greater than the significance level, we fail to reject the null hypothesis.

No matter which significance level is used from the above mentioned significance levels, p-value will always be larger than it. Therefore, we fail to reject the null hypothesis.

Conclusion:

We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.

7 0
3 years ago
What is the sum of the arithmetic sequence 151, 137, 123,..if there are 26 terms?
ElenaW [278]
First term: a1 = 151
common difference: d = -14 (we decrease by 14 each time, eg, 151-14 = 137)

nth term of this arithmetic sequence is...
an = a1+d(n-1)
an = 151+(-14)(n-1)
an = 151-14n+14
an = -14n+165

This will be used in the formula below

Sn = n*(a1+an)/2
<span>Sn = n*(151+(-14n+165))/2
</span><span>S26 = 26*(151+(-14*26+165))/2 ... replace every n with 26
</span>S26 = -624

The final answer here is choice C) -624
<span>
</span>
5 0
3 years ago
last week, Jim worked h hours and earned $9 per hour. if he earned a total of $405, which equation can be used to find out how m
ad-work [718]
I hope this helps you




if he can earn $9 per hour


$405 ? hours




?=405/9



?=45 hours he worked
8 0
3 years ago
Write 504 as a product of primes. Use index notation when giving your answer.
Sergio039 [100]

Prime Factors of 504: 2, 3, 7

23 × 32 × 71 where 2, 3, 7 are prime.

7 0
2 years ago
How do you write 1,795/1,000 as a percentage?
NISA [10]
The answer is 179.5%
7 0
3 years ago
Read 2 more answers
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