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katrin2010 [14]
2 years ago
7

Please help!! if you could show work too that would be amazing :))

Mathematics
1 answer:
icang [17]2 years ago
5 0

Answer:

Was there suppose to be a attached image?

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Until recently a number of professions were prohibited from advertising. In 1977, the U.S. Supreme Court ruled that prohibiting
umka2103 [35]

Answer:

the two groups differed in their attitudes toward advertising, significantly

Step-by-step explanation:

given that until recently a number of professions were prohibited from advertising. In 1977, the U.S. Supreme Court ruled that prohibiting doctors and lawyers from advertising violated their right to free speech. The paper "Should Dentists Advertise?" Journal of Advertising Research, June 1982) compared the attitudes of 101 consumers and 124 dentists to the questions "I favor the use of advertising by dentists to attract new patients".

Hypotheses would be

H-0: the groups do not differ

H-a: The two groups differ significantly

(two tailed chi square test)

Observed      

Group Strongly agree Agree Neutral Disagree Strongly disagree Total

     

Consumers 34 47 9 6 5 101

Dentists 9 18 23 28 46 124

     

Expected is calculated as row total * column total / grand total for each cell

chi square = (obs - exp)^2/Exp for each cell added

chi square = 79.2716

rxc 5x2

df = 4x1 =4

p value <0.00001

Since p < alpha say 0.01, we reject null hypothesis.

the two groups differed in their attitudes toward advertising, significantly

3 0
3 years ago
Solve the inequality.<br> I need help please.<br> -11.6&gt;6.7+4.3+m
satela [25.4K]
First, combine like terms:

(6.7+4.3= 11)

-11.6>11+m
isolate m on one side
-11.6-11>m
=
m<-22.4
6 0
3 years ago
The standard deviation for actuary salaries has a standard deviation of $36,730 . You collect a simple random sample of n=36 sal
Yanka [14]

Using the z-distribution, it is found that the lower limit of the 95% confidence interval is of $99,002.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The other parameters are given as follows:

\overline{x} = 111000, \sigma = 36730, n = 36

Hence, the lower bound of the interval is:

\overline{x} - z\frac{\sigma}{\sqrt{n}} = 111000 - 1.96\frac{36730}{\sqrt{36}} = 99002

The lower limit of the 95% confidence interval is of $99,002.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

8 0
2 years ago
Write an equation for the line that has a slope of 1/2 and passes though the point (-2,5)?
Schach [20]

Answer:

y=1/2x+6

Step-by-step explanation:

Y=MX+B

m= slope=1/2

b= y-intercept

5 0
3 years ago
Read 2 more answers
Juan analyzes the amount of radioactive material remaining in a medical waste container over time. He writes the function f(x) =
Misha Larkins [42]
Rounded to the nearest tenth would remain is 8.2 units is the answer. Just took the test.
6 0
3 years ago
Read 2 more answers
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