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hammer [34]
3 years ago
13

PLEASE I NEED HELP WITH THE BOTTOM QUESTION

Mathematics
1 answer:
GenaCL600 [577]3 years ago
8 0

Answer:

6/25

Step-by-step explanation:

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1. A researcher believes that university students weigh more than the population. The researcher reasons that more time spent on
andrew11 [14]

Answer:

The null and alternative hypotheses are:

H_{0}: \mu = 170

H_{a}: \mu >170

Under the null hypothesis, the test statistic is:

z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}} }

         =\frac{180-170}{\frac{35}{\sqrt{225}} }

         =\frac{10}{2.33}

         =4.29

Now, we have to find the right tailed z critical value at 0.10 significance level. Using the standard normal table, we have:

z_{critical} = 1.28

Since the test statistic is greater than the z critical value, we therefore, reject the null hypothesis and conclude that there is sufficient evidence to support the claim that the university students weigh more than the population.


8 0
3 years ago
X^2+X=56<br> Help please!!!!
stich3 [128]
The value of x is either +7 or -8
3 0
3 years ago
PLEAASSSE HELP ASAP I WILL MARK →BRAINLIEST← AND 5 STARS!!!
algol13

Answer:Yes she has enough

Step-by-step explanation:

Total ounces=11

1st recipe=6 ounces

2nd recipe=1/4 ounces

1 pound =16 ounces

= 1/4 pounds × 16 ounces/1 pound

= 4 ounces

First recipe + Second recipe

= 6 ounces + 4 ounces

= 10 ounces.

10 ounces of walnuts and Marni has 11

5 0
3 years ago
Neil is making colorful friendship bracelets for 6 of his friends. He has all of the colors of
garri49 [273]

Answer:

your answer is 11 feet, or 132 inches.

Step-by-step explanation:

one bracelet needs 22 inches, but he's making six, so multiply.

you should get 132, which can be divided by 12 to see how many feet you need, since this is what the question requires.

Hope I Helped!

3 0
3 years ago
Which ordered pair is part of the solution set of the system of inequalities graphed below?
Serjik [45]

They didn't make it easy. Grid lines are apparently 3 apart, but the offered coordinates are all multiples of 4. It appears the only point that is in the doubly-shaded area is ...

... B (-4, -10)

4 0
3 years ago
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