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Statistics

06/30/23

ssified as only children (no siblings). However, in the special program for talented and gifted children, 178 out of 436 students are only children

In a certain school district, it was observed that 34% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted... more

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Statistics

06/30/23

You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.6. You use a significance level of α = 0.001 .

You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.6. You use a significance level... more

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Statistics

06/30/23

Express the confidence interval 65.4 % ± 8.5 % in interval form. Express the answer in decimal format (do not enter as percents).

Express the confidence interval 65.4%±8.5%65.4%±8.5% in interval form.Express the answer in decimal format (do not enter as percents).

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Statistics

06/30/23

If n=29, ¯ x (x-bar)=47, and s=4, find the margin of error at a 98% confidence level

If n=29, ¯x�¯(x-bar)=47, and s=4, find the margin of error at a 98% confidence level

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Statistics

06/30/23

If n=20, ¯ x (x-bar)=36, and s=15, construct a confidence interval at a 98% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.

If n=20, ¯x�¯(x-bar)=36, and s=15, construct a confidence interval at a 98% confidence level. Assume the data came from a normally distributed population.Give your answers to one decimal place.

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Statistics

06/29/23

confidenc elevel

An experimenter finds that, on average, the reduction in systolic blood pressure is 16.9 for a sample of size 547 and standard deviation 6.4.Estimate how much the drug will lower a typical... more

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Statistics

06/29/23

Construct a 90% confidence interval of the population proportion using the given information. x=120, n=200

Construct a 90% confidence interval of the population proportion using the given information.x=120, n=200

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Statistics

06/28/23

what % of the area under the curve of the standard normal distribution is outside the interval z= [-0.86,0.86] (or beyond 0.86 standard deviations of the mean).

id specifically like to know how to put this into a calculator so I'm able to learn how to get the answer. Thank you!

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Statistics Spss Sas

06/27/23

Which statistical analysis should I run?

Thank you! I am struggling with settling on what the best approach to my test design to choose. My initial inclination is to run a two-way repeated ANOVA. I have two dependent variables measured at... more

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Statistics Math

06/27/23

According to the WHO MONICA Project the mean blood pressure for people in China

According to the WHO MONICA Project the mean blood pressure for people in China is 128 mmHg with a standard deviation of 23 mmHg. Assume that blood pressure is normally distributed.Round the... more

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Statistics

06/27/23

The number of people who survived the Titanic based on class and gender is in the following table. Suppose a person is picked at random from the survivors.

The number of people who survived the Titanic based on class and gender is in the following table. Suppose a person is picked at random from the... more

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Statistics Math

06/26/23

A knitted hat pattern comes in 5 styles with 3 stitch options and 4sizes, and there are 7 yarns appropriate for the hat. Disregarding the stitch options, how many different hats can be made?

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Statistics

06/26/23

Eyeglassomatic manufactures eyeglasses for different retailers.

Eyeglassomatic manufactures eyeglasses for different retailers. The number of days it takes to fix defects in a pair of eyeglasses and the probability that it will take that number of days are in... more

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Statistics Math

06/26/23

Investigative Team The state narcotics bureau must form a 5-member investigative team. If it has 26 agents from which to choose, how many different possible teams can be formed?

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Statistics Math

06/26/23

Find the probability that it is a mystery or comedy.

A media rental store rented the following number of movie titles in each of these categories: 162 horror, 222 drama, 116 mystery, 322 romance, and 134 comedy. If a person selects a movie to rent,... more

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Statistics Math

06/26/23

if one card is drawn from deck of cards, find the probability of getting the following. Enter your answers as fractions or as decimals rounded to 3 decimal places. P (ace or king or jack)

If one card is drawn from an ordinary deck of cards, find the probability of getting the following.Enter your answers as fractions or as decimals rounded to 3 decimal places. P (ace or king or jack)

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Statistics

06/26/23

The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand.

The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many... more

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Statistics

06/26/23

In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. S

In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her... more

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Statistics

06/26/23

The pulse rates of 166 randomly selected adult males vary from a low

The pulse rates of 166 randomly selected adult males vary from a low of 45 bpm to a high of 109 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume... more

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Statistics

06/26/23

An IQ test is designed so that the mean is 100 and the standard deviation is 18

An IQ test is designed so that the mean is 100 and the standard deviation is 18 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics... more

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Statistics Probability

06/23/23

statistics probability

Use the spinner below to find the probability of getting the following number after 1 spin.P(3 or 2) = rrect (Please enter a reduced fraction)

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Statistics

06/22/23

For a standard normal distribution, find: P(z > c) = 0.4483

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Statistics

06/22/23

For a standard normal distribution, find: P(-2.64 < z < -2.23)

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Statistics

06/22/23

The table below is to be valid probability distribution for a data set.

The table below is to be valid probability distribution for a data set. x P(x) 4 0.31 5 6 0.58 11 0.04 12 0 What is the missing probability to complete the probability distribution? P(5)... more

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Statistics

06/21/23

Standard deviation

The population parameters below describe the full-time equivalent number of students (FTES) each year at Lake Tahoe Community College from 1976-1977 through 2004-2005. • 𝜇 = 1000 FTES • median =... more

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ssified as only children (no siblings). However, in the special program for talented and gifted children, 178 out of 436 students are only children

You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.6. You use a significance level of α = 0.001 .

Express the confidence interval 65.4 % ± 8.5 % in interval form. Express the answer in decimal format (do not enter as percents).

If n=29, ¯ x (x-bar)=47, and s=4, find the margin of error at a 98% confidence level

If n=20, ¯ x (x-bar)=36, and s=15, construct a confidence interval at a 98% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.

confidenc elevel

Construct a 90​% confidence interval of the population proportion using the given information. x=120, n=200

what % of the area under the curve of the standard normal distribution is outside the interval z= [-0.86,0.86] (or beyond 0.86 standard deviations of the mean).

Which statistical analysis should I run?

According to the WHO MONICA Project the mean blood pressure for people in China

The number of people who survived the Titanic based on class and gender is in the following table. Suppose a person is picked at random from the survivors.

A knitted hat pattern comes in 5 styles with 3 stitch options and 4sizes, and there are 7 yarns appropriate for the hat. Disregarding the stitch options, how many different hats can be made?

Eyeglassomatic manufactures eyeglasses for different retailers.

Investigative Team The state narcotics bureau must form a 5-member investigative team. If it has 26 agents from which to choose, how many different possible teams can be formed?

Find the probability that it is a mystery or comedy.

if one card is drawn from deck of cards, find the probability of getting the following. Enter your answers as fractions or as decimals rounded to 3 decimal places. P (ace or king or jack)

The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand.

In a science fair​ project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. S

The pulse rates of 166 randomly selected adult males vary from a low

An IQ test is designed so that the mean is 100 and the standard deviation is 18

statistics probability

For a standard normal distribution, find: P(z > c) = 0.4483

For a standard normal distribution, find: P(-2.64 < z < -2.23)

The table below is to be valid probability distribution for a data set.

Standard deviation

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Construct a 90% confidence interval of the population proportion using the given information. x=120, n=200

In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. S