Plz can some one look at this

Answers

Answer 1

Answer: Add up the values for Craig and Sheila, which is 25 and 40 respectively

25+40 = 65

Answer: 65

The error made is that the random simulation is perfectly going to match up with the theoretical values. It never works out this way. Though as the number of trials increases, it should get closer and closer.

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A new drug to treat psoriasis has been developed and is in clinical testing. Assume that those individuals given the drug are examined before receiving the treatment and then again after receiving the treatment to determine if there was a change in their symptom status. If the initial results showed that 2.0% of individuals entered the study in remission, 77.0% of individuals entered the study with mild symptoms, 16.0% of individuals entered the study with moderate symptoms, and 5.0% entered the study with severe symptoms calculate and interpret a chi-squared test to determine if the drug was effective treating psoriasis given the information below from the final examination.

When proving a statement using mathematical induction, part of the process is assuming that the statement is true for the nth case. (True or False).

Answers

Answer:

True

Step-by-step explanation:

We assume that is true for the nth case and prove it for the n+1 case

and show that it is true for the case when n=1

The temperature in potter's kiln dropped 760 degrees in 4 hours. On average, how much did the temperature drop per hour?

Answers

If temperature in potter's kiln dropped 760 degrees in 4 hours. On average, 190 degrees of temperature drop per hour

What is Division?

A division is a process of splitting a specific amount into equal parts.

Given,

The temperature in potter's kiln dropped 760 degrees in 4 hours

We need to find the average of temperature drop per hour

To find this we have to divide 760 by 4.

Seven hundred sixty divided by four.

760/4

One hundred ninety

190

For an hour 190 temperature is dropped.

Hence, On average 190 temperature drop per hour.

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#SPJ2

Answer:

-190

Step-by-step explanation:

A researcher records the repair cost for 8 randomly selected refrigerators. A sample mean of $57.89 and standard deviation of $23.69 are subsequently computed. Determine the 95% confidence interval for the mean repair cost for the refrigerators. Assume the population is approximately normal. Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Answers

The question is incomplete! the complete question along with answer and step by step explanation is provided below.

Question:

Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Step 2 of 2 : Construct the 95% confidence interval. Round your answer to two decimal places.

Given Information:

Sample mean repair cost = $57.89

Sample standard deviation = σ = $23.69

Sample size = 8

Confidence level = 95%

Required Information:

step 1: critical value = ?

step 2: 95% confidence interval = ?

Answer:

step 1: critical value = 2.365

step 2: 95% confidence interval = ($38.08, $77.70)

Step-by-step explanation:

Since the sample size is less than 30 and the standard deviation of the population is also unknown therefore, we can use the t-distribution to find the required confidence interval.

The confidence interval is given by

$CI = \bar{x} \pm MoE\n\n$

Where $\bar{x}$ is the mean repair cost and MoE is the margin of error that is given by

$$ MoE = t_(\alpha/2)((s)/(√(n) ) ) $ \n\n$

Where n is the sample size, s is the sample standard deviation, and $t_(\alpha/2)$ is the t-score corresponding to 95% confidence level.

The t-score corresponding to 95% confidence level is

Significance level = 1 - 0.95 = 0.05/2 = 0.025

Degree of freedom (DoF) = n - 1 = 8 - 1 = 7

From the t-table at α = 0.025 and DoF = 7

t-score = 2.365

Therefore, the critical value that should be used in constructing the confidence interval is 2.365

$MoE = 2.365\cdot (23.69)/(√(8) ) \n\nMoE = 2.365\cdot 8.3756\n\nMoE = 19.808 \n\n$

So the required 95% confidence interval is

$CI = \bar{x} \pm MoE\n\nCI = 57.89 \pm 19.808\n\nCI = 57.89 - 19.808 \: and \: 57.89 + 19.808\n\nCI = \$38.08 \: and \:\:\$77.70\n$

Therefore, we are 95% confident that the mean repair cost for the refrigerators is within the range of ($38.08, $77.70)

What is the solution to 3/4 a>-16?O a>-21/3
O a<-21
O a> 21-1/
O a <21/13

Answers

$\huge\text{Hey there!}$

$\huge\textbf{Equation:}$

$\mathsf{(3)/(4)a > -16}$

$\huge\textbf{Simplifying it:}$

$\mathsf{(3)/(4)a > -16}$

$\mathsf{(3)/(4)a > - (16)/(1)}$

$\huge\textbf{Divide \boxed{(4)/(3)} to both sides:}$

$\mathsf{(4)/(3)*(3)/(4)a > -16*(4)/(3)}$

$\huge\textbf{Simplify it:}$

$\mathsf{a > (4)/(3)* -16}$

$\mathsf{a > - (16)/(1) *(4)/(3)}$

$\mathsf{a > (-16*4)/(1*3)}$

$\mathsf{a > (-64)/(3)}$

$\mathsf{a > -(64)/(3)}$

$\mathsf{a > -21 (1)/(3)}$

$\huge\textbf{Therefore, your answer should be:}$

$\huge\boxed{- \frak{21(1)/(3)}}\huge\checkmark$

$\huge\text{Good luck on your assignment \& enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

$(3a)/(4) > - 16 \n 3a > - 64 \n a > ( - 64)/(3) \n a > 21 (1)/(3)$

Select all the equations where b = 11 is a solution. I need the answer quickly please.

Answers

Answer:

Step-by-step explanation:

The answer is : D and C

Heres a list of numbers 3 6 9 7 4 6 7 0 7 Find median,mean,range and mode

Answers

The median, mean, range and mode will be 6, 5.4, 9 and 7.

The median is the number in the middle when arranged in an ascending order. The numbers will be:

0, 3, 4, 6, 6, 7, 7, 7, 9.

The median is 6.

The range is the difference between the highest and lowest number which is: = 9 - 0 = 9

The mode is the number that appears most which is 7.

The mean will be the average which will be:

= (0 + 3 + 4 + 6 + 6 + 7 + 7 + 7 + 9) / 9.

= 49/9

= 5.4

Read related link on:

brainly.com/question/9426296

Answer:

median=order them and find the middle=6

mean=add them all up and divide by the amount of numbers=(3+6+9+7+4+6+7+0 +7)/9=5.4

range= the difference between the smallest and largest number=9-3=6

mode= the one that appears the most= 7

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