07/21/22

Math Question #5
A particular fruit's weights are normally distributed, with a mean of 511 grams and a standard deviation of 29 grams.If you pick 25 fruits at random, then 10% of the time, their mean weight will be... more
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07/21/22

Math Question #4
Based on historical data, your manager believes that 42% of the company's orders come from first-time customers. A random sample of 165 orders will be used to estimate the proportion of... more
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07/21/22

Math Question #2
Based on historical data, your manager believes that 33% of the company's orders come from first-time customers. A random sample of 76 orders will be used to estimate the proportion of... more
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07/21/22

Math Question # 1
A population of values has a normal distribution with μ=80.6μ=80.6 and σ=34.8σ=34.8. You intend to draw a random sample of size n=151n=151.1.1, What is the mean of the distribution of sample... more
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07/20/22

Statistics Question
You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05.      Ho:μ=76.9Ho:μ=76.9       Ha:μ<76.9Ha:μ<76.9You believe the population is normally distributed, but... more
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07/20/22

In a recent poll, 390 people were asked if they liked dogs, and 71% said they did. Find the margin of error of this poll, at the 90% confidence level.
what is the margin of error
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07/12/22

For the problem below, θ is a central angle in a circle of radius r . Find the length of arc s cut off by θ . Enter exact answers, do not round. θ = 60 ∘ ; r = 8 inches
For the problem below, θθ is a central angle in a circle of radius rr. Find the length of arc ss cut off by θθ. Enter exact answers, do not round.θ=60∘θ=60∘ ; r=8r=8 inches
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07/11/22

Below is a probability distribution for the number of days worked per week for a sample of adults:
Below is a probability distribution for the number of days worked per week for a sample of adults:Task 1: Find the mean of the probability distribution. (remember not to use the built in excel... more
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07/11/22

spinner has equal regions numbered 1 through 21. What is the probability that the spinner will stop on an even number or a multiple of 3?
spinner has equal regions numbered 1 through 21. What is the probability that the spinner will stop on an even number or a multiple of 3?
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07/10/22

What is the probability of these two scenarios?
A shipment of 13 microwave ovens contains 3 defective units. A restaurant buys three of these units. What is the probability of the restaurant buying at least two nondefective​ units?The... more
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07/08/22

algebra questions

Explain step by step how to determine if two functions are inverses of each other. Provide a detailed example.
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07/08/22

algebra summary
If f(x) = 4x2 - 3x + 2, find f(-1). please show the steps
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07/08/22

algebraic questions
State the domain of the function f(x) = (x+3)/(x-1).
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07/08/22

Find an equation of the line that

Find an equation of the line that (a) has y-intercept of 11 and (b) is parallel to the line −1x+5y=6-1x+5y=6.Write your answer in the form y=mx+by=mx+b.
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07/08/22

Sketch the region corresponding to the statement P(z > c) = .45
The arrows can only be dragged to z scores that are accurate to 1 place after the decimal point (these values correspond to the tick marks on the horizontal axis). So round all z scores to 1... more
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07/08/22

What is the approximate percentage of students who scored between 46 and 70 on the test? Round to two decimal places.
The maximum possible score on the test was 110, while the mean score was 70 and the standard deviation was 8.Is the answer 0.5?
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07/06/22

arithmetric and geometric sequence
Given a geometric sequence .0 12 .0, 48 .1, 92 .491,..., 52 . Find the number of the terms in the sequence and the sum of all the terms.
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07/01/22

What is the probability the elevator is overloaded?
An elevator has a placard stating that the maximum capacity is 2016 lb- 12 passengers.​ So, 12 adult male passengers can have a mean weight of up to 2016/12=168 pounds If the elevator is loaded... more
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05/31/22

How do I solve for mean and standard deviation using two percentiles?
Consider a normal distribution curve where 60-th percentile is at 17 and the 5-th percentile is at 9. Use this information to find the mean,  , and the standard deviation,  , of the distribution.
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05/31/22

A code is composed of letters and digits. Determine how many different codes of 2 digits followed by 5 letters are possible if the letters and digits cannot be repeated.
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05/30/22

statistics problem
1. You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 19%. You would like to be 94% confident that... more
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05/30/22

Sample Sizes Confidence Intervals
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 23%. You would like to be 99% confident that your... more
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05/30/22

Stats Confidence Intervals Sample Size
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 23%. You would like to be 99% confident that your... more
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05/30/22

Statistics: Confidence Intervals (Sample Size)
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.11. You would like to be 96% confident that... more
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05/30/22

Sample Size Confidence Intervals
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=66.2. You would like to be 90% confident that... more
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