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jonny [76]
3 years ago
5

gail ran 4

gn="absmiddle" class="latex-formula"> miles and \frac{8}{10} on sunday how many miles did gail run over the weekends
Mathematics
1 answer:
erastovalidia [21]3 years ago
3 0
92/25=3.68 I hope this help
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Steve is buying Darryl's house for $360,000. Steve's loan amount is $275,000. He has agreed to pay 2 points at closing. How much
skad [1K]

Answer:

$5,500

Step-by-step explanation:

Steve is Darrlyn house for $360,000

Steve loan amount $275,000

He agreed to pay 2 points at closing

Therefore the amount steve will pay for points can be calculated as follow

= 275,000 × 2/100

= 275,000 × 0.02

= 5,500

Hence Steve will pay $5,500

3 0
3 years ago
Juan received scores of 82, 76, 93, and 80 on his first four chemistry tests of the year. His goal is to have an 86 average in c
SCORPION-xisa [38]

Answer:

99 marks

Step-by-step explanation:

Given:

Juan received scores of 82, 76, 93, and 80 on his first four chemistry tests.

His goal is to have an 86 average in chemistry for his first five tests.

Question asked:

What score must he earn on the next test to achieve an average of exactly 86?

Solution:

Let score he must earn on the fifth test = x

As we know:

Scores in five test = 82, 76, 93, 80, x

Total number of test = 5

<u>We can find the score of fifth test, he must earn to achieve an average of exactly 86 by using this formula:</u>

Average =\frac{Sum\ of\ all\ observations}{Total\ observation}

86=\frac{82+76+93+80+x}{5}\\\\ 86=\frac{331+x}{5}

By cross multiplication

331+x=86\times5\\331+x=430

Subtracting both sides by 331

x=99

Therefore, he must earn 99 marks to achieve an average of exactly 86 for his first five tests in chemistry.

6 0
3 years ago
A 20-ounce<br> box of cereal<br> costs $3.60.
Vanyuwa [196]

Answer:

is this the full question?

Step-by-step explanation:

8 0
3 years ago
Imagine you're a researcher and you need to perform a two-sided test of an alternative hypothesis. You decide to conduct a signi
Sophie [7]

Answer:

B. You should not take the statistician’s advice. Hypothesis testing relates to a single conclusion, while a confidence interval provides a range of plausible values for your population.

Step-by-step explanation:

Hello!

A statistical hypothesis is an assertion or specification about the distribution of a random variable X, and, more specifically, about the parameters that characterize it. The objective of the hypothesis test is, therefore, to test the researcher's belief about the possible value of the parameter under study and obtain significant evidence to accept or reject it.

The objective of a Confidence interval is to estimate a possible range of values for the population parameter you are studying. If the confidence level is of 95%, this means that if you were to make 100 confidence intervals, you'd expect 95 of them to contain the true value of the parameter. But only with the confidence interval you cannot make any valid assertion about the parameter value.

In this case the study parameter is μ₁ - μ₂

The hypothesis is:

H₀: μ₁ - μ₂ = 0

H₁: μ₁ - μ₂ ≠ 0

α 0.05

One of three valid methods to decide an hypothesis test is using a Confidence Interval. To do so the following conditions are to be met:

The hypothesis and CI should be made for the same population parameter.

The hypothesis should be two-tailed.

The signification level of the test "α" and confidence level of the interval "1 - α" have to be complementary.

For both is to be used the data from the same sample and same statistic.

If this conditions are met, the decision rule is:

If the value of the study parameter under the null hypothesis is included in the confidence interval, then you do not reject the null hypothesis.

If the value is not included in the interval, then you reject the null hypothesis.

To make a decision you need to do both, the interval and the two-tailed hypothesis.

I hope this helps!

3 0
3 years ago
Write the linear inequality shown in the graph. The gray area represents the shaded region.
nikdorinn [45]
A) It is a straight line.
b) Assume the grey area touches the -3

Answer: y ≥ -3
7 0
3 years ago
Read 2 more answers
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