answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
m_a_m_a [10]
2 years ago
8

Under what circumstances will the chi-square test for goodness of fit produce a large value for chi-square? Question options: a.

when the sample proportions are much different than the hypothesized population proportions b.when the sample mean is close to the population mean
Mathematics
1 answer:
Whitepunk [10]2 years ago
4 0

Answer:

a.when the sample proportions are much different than the hypothesized population proportions

Step-by-step explanation:

A chi-square test for goodness of fit is used to check the sample data were distributed according to claim or not.

If the chi-square test produces a large value of chi-square statistic then there is not a good fit between sample data and the null hypothesis. So, the sample proportions are much different than the hypothesized population proportions. Hence,Option (a) is correct.

If the goodness of fit produces a large value for chi-square then the sample means must not be close to the population mean. So, option (b) is incorrect.

You might be interested in
Which of the following estimates at a 95% confidence level most likely comes from a small sample?
dusya [7]
<span>The <u>correct answer</u> is:

A) 60% ± 18%.

Explanation:

In a confidence interval, the margin of error is given by z*(</span>σ/√n<span>), where </span>σ<span> is the standard deviation and n is the sample size.

First we <u>find the value of z</u>:

We want a 95% confidence level; 95% = 95/100 = 0.95.

To find the z-score, we first subtract this from 1:
1-0.95 = 0.05.

Divide by 2:
0.05/2 = 0.025.

Subtract from 1 again:
1-0.025 = 0.975.

Using a z-table, we find this value in the middle of the table. The z-score that is associated with this value is 1.96.

Back to our formula for margin of error, we have 1.96(</span>σ<span>/</span>√n<span>). The larger n, the sample size, is, the larger its square root is. When we divide by a larger number, our answer is smaller; this gives us a smaller margin of error.

This means that if we had a small sample size, we would divide by a smaller number, making our margin of error larger. The largest margin of error we have in this question is 18%, so this is our correct answer.</span>
7 0
1 year ago
At Norris Middle School 11 out of 22 students bike to school. At Lewis and Clark Middle School 14 out of 28
Darina [25.2K]
Both ratios are equivalent due to the fact that 11/22 as a simplified fraction makes 1/2 and 14/28 also makes 1/2 if simplified.
5 0
2 years ago
What is the x-intercept of the line with this equation 8x−13y=16 ?
elena-14-01-66 [18.8K]

Answer:

8x-13y=16

Let y=0,

8x-13(0)=16

8x-0=16

8x=16

x=2

x-intercept: (2,0)

Step-by-step explanation:

6 0
2 years ago
Triangle D E F is shown with point P at the center. Lines are drawn from each point of the triangle to point P. Line segments ar
Lostsunrise [7]

Answer:

the answer is 10

Step-by-step explanation:

i got it right on edge 2020

5 0
2 years ago
Read 2 more answers
INTERPRETATIONS OF THE DEFINITE INTEGRAL: Solar photovoltaic (PV) cells are the world’s fastest growing energy source. In year (
bezimeni [28]

Answer:

  31.747 GW

Step-by-step explanation:

The total cell capacity (C) manufactured in the time period is the integral of the rate of manufacture. So, we have ...

  C=\displaystyle\int\limits^3_0 {3.7e^{0.61t}} \, dt=\frac{3.7}{0.61}(e^{0.61\cdot 3}-1)\approx 31.747 \quad\text{GW}

About 31.747 GW of generating capacity was manufactured in that time interval.

7 0
1 year ago
Other questions:
  • Dudley’s credit card has an APR of 20.7%, calculated on the previous monthly balance, and a minimum payment of 2%, starting the
    5·1 answer
  • Just need to check these answers
    5·1 answer
  • What are the steps for using a compass and straightedge to construct a square? Drag and drop the steps in order from start to fi
    15·2 answers
  • Felicity set the thermostat in her living room to 68°F. The room temperature t, in degrees Fahrenheit, m minutes after the therm
    7·1 answer
  • 1. A researcher is interested in studying whether or not listening to music while jogging makes people run faster. He thinks tha
    15·1 answer
  • the table shows the number of minutes Tim has for lunch and study hall. he calculates that these two periods account for 18% of
    15·1 answer
  • HELP PLEASE, ASAP!!!!
    9·1 answer
  • Which of the following shows how the number 7 can be rewritten with the difference of squares identity? (16 - 9) = -1(4 + 3)(4 -
    15·1 answer
  • According to a Pew Research survey, about 27% of American adults are pessimistic about the future of marriage and the family. Th
    14·1 answer
  • The hawk flew over the meadow and saw 60 mice he caught 18 of them what percent of the mice did he catch
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!