06/29/20

6. please answer all parts

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.... more
Follows • 1
Expert Answers •1

06/29/20

5. please answer all parts

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.... more
Follows • 1
Expert Answers •1

06/29/20

4. please answer all parts

 population of values has a normal distribution with μ=70.8μ=70.8 and σ=40.4σ=40.4. You intend to draw a random sample of size n=60n=60.What is the mean of the distribution of sample... more
Follows • 1
Expert Answers •1

06/29/20

3. please answer all parts
For a standard normal distribution, find:P(-2.6 < z < -0.16)
Follows • 1
Expert Answers •1

06/29/20

2. please answer all parts

For a standard normal distribution, find:P(z > -1.76) Express the probability as a decimal rounded to 4 decimal places.
Follows • 1
Expert Answers •1

06/29/20

1.please answer all parts

For a standard normal distribution, find:P(z < -0.34) Express the probability as a decimal rounded to 4 decimal places.
Follows • 1
Expert Answers •1

06/29/20

Stats homework please help

Using a t-distribution, find the margin of error given 𝑐 = .99, 𝑠 = 3, 𝑛 = 6(a) 4.54 (b) 4.94 (c) 1.21 (d) 12.16 2. Construct a 92% confidence interval for the following sample assuming the... more
Follows • 1
Expert Answers •1

06/29/20

Stats homework please help

Find the 𝑃 −value for the indicated hypothesis test for a population proportion with the given standardized test statistic (𝑧 −score).Two-tailed test, 𝑧 = 2.13(a) 0.0166 (b) .0332 (c) 0.0083 (d)... more
Follows • 1
Expert Answers •1

06/28/20

Stats homework please help
At least 14% of all homeowners have a security alarm. Identify the type I error given the claim above.(a) Less than 14% of all homeowners have a security alarm and you reject the null.(b) At least... more
Follows • 1
Expert Answers •1

06/28/20

Stats homework please help

(a) Use the given information to find the sampling error: 𝑥̅ = 9.5, 𝜇 = 8.76, 𝑛 = 35, 𝑠 = .35, 𝑐 = .9 (b) Which of the confidence levels will produce the widest interval. (c) In a survey of 1002... more
Follows • 1
Expert Answers •1

06/28/20

Stats homework please help
(a) What effect does increasing the margin of error have on finding a minimum sample size for the mean? (b) Determine the decision that needs to be made at the 5% level of significance given the... more
Follows • 1
Expert Answers •1

06/28/20

Jeffrey collected the following data set from his survey.
What is the mean of the data set? Round your answer to the nearest whole number.72.5, 88, 96.3, 62.2, 84.5, 90.1, 90, 88, and 92
Follows • 1
Expert Answers •1

06/28/20

Need Help Today- Statistics Probability
No matter what I do I can't get the following question right- please help.A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.5 years, and standard... more
Follows • 1
Expert Answers •1

06/28/20

Please Help Today- Statistics Question
A particular fruit's weights are normally distributed, with a mean of 721 grams and a standard deviation of 32 grams.If you pick 23 fruit at random, what is the probability that their mean weight... more
Follows • 1
Expert Answers •1

06/28/20

Really Need Help ASAP- Continuous Uniform Distribution Problem
The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is randomly selected, find the probability that the class length is... more
Follows • 1
Expert Answers •1

06/28/20

the parking lot has a length of 300 feet and a width of 100 feet
1.what is the perimeter of the parking lot? what is the area of the parking lot?
Follows • 1
Expert Answers •1

06/28/20

how to solve this problem of of Segment Addition postulate.
HJ=4x+9,JK=3x+3,and KH=33X=HJ=JK=
Follows • 1
Expert Answers •1

06/27/20

find sin theta, given sec theta= 4/3 and tan theta<0

I know that theta must be in the fourth quadrant but I am lost on what identities to use for solving sin theta.
Follows • 1
Expert Answers •2

06/27/20

Stats homework please help
In a certain school district, it was observed that 32% of the students in the element schools were classified as only children (no siblings).  However, in the special program for talented and... more
Follows • 1
Expert Answers •2

06/27/20

Stats homework please help

(a) You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly different from 60%. With Ha : p ≠60% you obtain a test statistic of z=−1.7. Find the... more
Follows • 1
Expert Answers •1

06/27/20

Stats homework please help
You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly more than 0.58. Thus you are performing a right-tailed test. Your... more
Follows • 1
Expert Answers •1

06/27/20

Find a formula for the inverse of the given function. f(x) = x 6x − 3

Follows • 1
Expert Answers •1

06/27/20

Find a formula for the inverse of the given function. f(x) = x 9x − 4

Follows • 1
Expert Answers •1

06/27/20

Proofs with Triangles
I have been studying how to prove that triangles are congruent. I have been able to identify the rules concerning side and angle congruency, but am having a hard time determining if two triangles... more
Follows • 1
Expert Answers •1

06/27/20

Stats homework please help
The number of hours spent on a computer is normally distributed with a mean of 7 hours and a standard deviation of 1 hour based on a given survey. A survey participant is randomly selected. Find... more
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.