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3 years ago

Please don't put absurd answers, (I think it's 11am-2pm, but I just want to be certain)

Mathematics

2 answers:

Dennis_Churaev [7]3 years ago

6 0

YOU Are correct: the temperature is constant between 11 a.m. and 2 p.m.

goldenfox [79]3 years ago

4 0

The answer is from 11am to 2pm

hope it helps!

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Conduct the appropriate hypothesis test and compute the test statistic. A company that produces fishing line undergoes random te

andre [41]

Answer:

Option D) Yes, because the test statistic is -2.01

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 30 pound

Sample mean, $\bar{x}$ = 29.1 pounds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, s = 2 pounds

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 30\text{ pounds}\\H_A: \mu < 30\text{ pounds}$

We use one-tailed(left) t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{29.1 - 30}{\frac{2}{\sqrt{20}} } = -2.012$

Now,

$t_{critical} \text{ at 0.05 level of significance, 19 degree of freedom } = -1.729$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis. Thus, there were enough evidence to conclude that the fishing line breaks with an average force of less than 30 pounds.

Option D) Yes, because the test statistic is -2.01

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4 years ago

100 ^2 x 26 / 100 + 145^5 =

Ymorist [56]

The answer is 64,097,343,225

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3 years ago

5. Marie buys 2 pounds of turkey and 1 pounds of ham. She pays a total of $20,

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Answer:Let t = cost per pound of turkey

Let h = cost per pound of ham

4t + 2h = 30

t = h - 1.5

substitute h-1.5 in place of t in 1st equation

4(h-1.5) + 2h = 30

4h - 6 + 2h = 30

6h - 6 = 30

6h = 36

h = 6

t = h-1.5 = 4.5

1 pound of turkey costs $4.50

1 pound of ham costs $6.00

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cost of 1 pound each $10.50

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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Answer: c

Step-by-step explanation:

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