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Statistics

05/04/22

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

You are interested in estimating the average SAT score of first year students at your college. If you would like to limit the margin of error of your 95% confidence interval to 25 points, how many... more

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Statistics

05/04/22

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures:

13.7 24.2 22.5 5.7 6 15.3 21.8 Find the 99% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported... more

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Statistics

05/04/22

Random samples with size 4 are drawn from the population containing the values 14, 19,26,31.48. and 53

A How many possible samples can be drawn? B. Construct the sampling distribution of sample means.C. Solve the variance and the standard deviation of the sampling distribution of the sample means.

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Statistics

05/04/22

A sample size of three is drawn from the set 5, 6,8,12 and 20.

A. How many possible samples can be drawn?B. Construct the sampling distribution of sample means.C. Solve the variance and the standard deviation of the sampling, distribution of the sample means.

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Statistics

05/04/22

A. Identify whether the following datas refer to discrete or continuous. (a) Discrete (b) Continuous

1. Twelve thousand students are the total population of NEUST. 2. It takes 3 hours to travel from Cabanatuan City to Manila.3. The withholding tax of Joy Nacino for the past two month was P 2,... more

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Statistics

05/04/22

Identify whether the following situations refer to a parameter or statistic. (a) Parameter (b) Statistic

1. A researcher wants to determine the mean electric consumption of the families in a barangay. From a random sample of families, a mean consumption of 130 kWh was identified. 2. A school principal... more

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Statistics

05/04/22

Find the corresponding area between z=0 and each of the following.

1) z=1.842) z=-2.553) z=1.594) z=1.015) z=2.036) z=2.317) z=2.008) z=2.999) z=0.9910) z=0.59

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Statistics

05/03/22

I cannot figure out the P and Z please help

In a certain school district, it was observed that 24% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and... more

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Statistics Multivariate Analysis

05/03/22

Cross validation of OPLS-DA and PLS regression models

I obtained for the first time strange results from my OPLS-DA and PLS regression models, the CV ANOVA was (-nan(ind)), the SD residual was (inf), and the MS residual was (inf), moreover, the F test... more

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Statistics Math Probability

05/02/22

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 47 ounces and a standard deviation of 8 ounces.

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 47 ounces and a standard deviation of 8 ounces.Use the Empirical Rule to... more

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Statistics Math Probability

05/02/22

Company XYZ knows that replacement times for the quartz time pieces it produces are normally distributed with a mean of 12.5 years and a standard deviation of 0.6 years.

Company XYZ knows that replacement times for the quartz time pieces it produces are normally distributed with a mean of 12.5 years and a standard deviation of 0.6 years.(a) Find the probability... more

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Statistics

05/02/22

Out of 400 people sampled, 68 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.

___ < p < ___

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Statistics

05/02/22

In a recent poll, 490 people were asked if they liked dogs, and 47% said they did. Find the margin of error of this poll, at the 99% confidence level.

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Statistics

05/01/22

Confidence Interval

Express the confidence interval 50.4% ±7% in interval form.

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Statistics

05/01/22

Confidence Interval

Express the confidence interval 66.4%±7.6% in the form of a trilinear inequality.________% <p<______ %

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Statistics

05/01/22

Confidence Interval

Express the confidence interval 78.1%<p<92.3% in the form of ˆp±ME._______% ± ________%

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Statistics

05/01/22

If n=190 and ˆ p (p-hat) =0.54, find the margin of error at a 99% confidence level

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Statistics

04/30/22

If a 8 sided fair die that is numbered 1 to 8 is rolled once, find the probability of getting: (a) a number that is less than 2 OR at least 6, (b) a number less than 2 AND at least 6, (c) an even #

please give an explanation rather than just an answer. I'm trying to learn the material as well :)

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Statistics

04/29/22

If n=180 and ˆ p (p-hat) =0.2, find the margin of error at a 99% confidence level

If n=180 and ˆp (p-hat) =0.2, find the margin of error at a 99% confidence level

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Statistics

04/29/22

In a recent poll, 120 people were asked if they liked dogs, and 18% said they did. Find the margin of error of this poll, at the 95% confidence lev

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Statistics

04/29/22

probability and Statistics

Suppose the height in inches of an adult male is normally distributed with μ = 70 inches and σ = 4 inches. What percentage of males have heights within one standard deviation of the mean?

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Statistics

04/29/22

Probability Question

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would... more

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Statistics Math Probability Maths

04/28/22

BBBASICSTAT8 6.2.501.XP

In the binomial probability distribution, let the number of trials be n = 3, and let the probability of success be p = 0.4012. Use a calculator to compute the following.(a) The probability... more

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Statistics Math Probability Maths

04/28/22

BBBASICSTAT8 6.2.018

The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a one-time fling.... more

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Statistics Math Probability Maths

04/28/22

BBBASICSTAT8 6.2.019.MI

Sociologists say that 95% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention). Suppose... more

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SAT scores are distributed with a mean of 1,500 and a standard deviation of 300.

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures:

Random samples with size 4 are drawn from the population containing the values 14, 19,26,31.48. and 53

A sample size of three is drawn from the set 5, 6,8,12 and 20.

A. Identify whether the following datas refer to discrete or continuous. (a) Discrete (b) Continuous

Identify whether the following situations refer to a parameter or statistic. (a) Parameter (b) Statistic

Find the corresponding area between z=0 and each of the following.

I cannot figure out the P and Z please help

Cross validation of OPLS-DA and PLS regression models

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 47 ounces and a standard deviation of 8 ounces.

Company XYZ knows that replacement times for the quartz time pieces it produces are normally distributed with a mean of 12.5 years and a standard deviation of 0.6 years.

Out of 400 people sampled, 68 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids.

In a recent poll, 490 people were asked if they liked dogs, and 47% said they did. Find the margin of error of this poll, at the 99% confidence level.

Confidence Interval

Confidence Interval

Confidence Interval

If n=190 and ˆ p (p-hat) =0.54, find the margin of error at a 99% confidence level

If a 8 sided fair die that is numbered 1 to 8 is rolled once, find the probability of getting: (a) a number that is less than 2 OR at least 6, (b) a number less than 2 AND at least 6, (c) an even #

If n=180 and ˆ p (p-hat) =0.2, find the margin of error at a 99% confidence level

In a recent poll, 120 people were asked if they liked dogs, and 18% said they did. Find the margin of error of this poll, at the 95% confidence lev

probability and Statistics

Probability Question

BBBASICSTAT8 6.2.501.XP

BBBASICSTAT8 6.2.018

BBBASICSTAT8 6.2.019.MI

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