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sergeinik [125]
4 years ago
10

Two random samples are taken, one from among first-year students and the other from among fourth-year students at a public unive

rsity. both samples are asked if they favor modifying the student honor code. a summary of the sample sizes and number of each group answering yes'' are given below: first-years (pop. 1):fourth-years (pop. 2):n1=86,n2=96,x1=52x2=54 the rejection region for the standardized test statistic:
Mathematics
1 answer:
Bess [88]4 years ago
3 0
<span>p1=44/88=.50; p2=57/85=.67. Under the null hypothesis of no difference, we pool the data to estimate the common p of (44+57)/(88+85)=.584. The test statistic is (.67-.50)/sqrt[(.584)(1-.584)(1/88 + 1/85)]=2.268 (which is stat sig. at a .095 level).</span>
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A family went to a baseball game. They parked the car in a parking lot which charged​ $5. The cost per ticket was​ $21. Write an
Masteriza [31]

Answer:

y = 21x + 5

Step-by-step explanation

The cost for the parking spot does not change, while the cost per ticket can (depending on how many people there are).

5 0
3 years ago
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Find:
JulijaS [17]

Answer:

a) 15 ÷ 2/3=

=1 5 x 3/2=45/2

b) 3 × 1/8 × 6/9

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=1/4

c) 3 3/5 ÷ 2 2/5

=18/5 : 12/5

=18/5 . 5/12

=3/2

d) 2 1/12 × 1 1/5

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Select the scenario that correctly represents the given graph.
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Answer:

C. The vertical distance of a roller coaster from the ground changes with respect to its horizontal distance from the beginning of the ride.

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See how the graph is in a "U" shape? That tells us that it first decreases and then goes back up at some point.

The way you would find this answer is to go through each scenario (A, B, C, and D) and think about which thing would make sense to go down and then up.

5 0
3 years ago
Teri has $6 less than does her sister, Jennie, who has x dollars. Teri
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The expression for the amount of money, in dollars, Teri has is x-2.

Since Jennie has x dollars while Teri has $6 less than does Jennie, this means that Teri will have: x - 6

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= x - 6 + 4

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Therefore, Teri has x-2.

Read related link on:

brainly.com/question/24499674

4 0
3 years ago
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We will compare pairwise treatment with the help of t-statistic to find the best treatment.The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesized value relative to its standard error.We need to check if the treatments are effective in curing phobia.

First, we must determine whether there is a relationship between the type of treatment used and the final result (cure or not cure). We may examine this using the Chi-square test of association.In the second phase, we must determine if all therapies are the same or different if the alternative hypothesis—that is, whether there exists any kind of link between therapy and cure—is accepted.

We must perform a One-way ANOVA for the treatments in this case, assuming that all treatments are equal. If the null hypothesis is rejected in this instance, then the treatments differ. then, we go to step three.We will compare pairwise treatment with the help of t-statistic to find the best treatment.

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