Question

Asked Dec 14, 2019

2 views

A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of

E=0.20 hour is desired. Past studies suggest that a population standard deviation of

σ=2.62.6 hours is reasonable.

Estimate the minimum sample size required to estimate the population mean with 95% confidence.

The required sample size is

________.

(Round up to the nearest whole number.)

Step 1

The sample size formula is given below:

Step 2

It is given that the margin of error is 0.20 and the standard deviation is 2.62.

From the table of&...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: To start this off can you complete D and check the first H0 it says its wrong along with the p value...

A: a)The test hypotheses are shown below:Null hypothesis:H0: μ = $494.Alternative hypothesis:H1: μ >...

Q: Due Thu 12/12/2019 11:59 pr Treat the number of months X after January 1 that someone is born as uni...

A: From the given information, a = 0 and b = 12.A uniform distribution has an equal probability for all...

Q: The director of library services at a college did a survey of types of books (by subject) in the cir...

A: a)The level of significance is 5%.The null and alternative hypotheses are stated below:H0: The distr...

Q: Identify the null hypothesis, alternative hypothesis, test statistic, conclusion about the null hypo...

A: Given:The provided sample mean is = 183.9 and the known population standard deviation is σ = 121.2,...

Q: In a certain city the monthly water bill amount is normally distributed with the mean 25 and standar...

A: Given data normally distributed with mean of 25 and standard deviation of 15.Now,Sample mean is equa...

Q: Allstate Batteries advertises and sells a 4 year (48 months) battery. You work at Consumer Digest, ...

A: From the given information, the sample size 36 cars and found a mean of 45 months and standard devia...

Q: QUESTION 32 A study is designed to investigate whether there is a difference in response to various ...

A: The appropriate null and alternative hypotheses are stated below:H0: There is no difference in the e...

Q: The population proportion is 0.32. What is the probability that a sample proportion will be within ±...

A: (a)The probability that a sample proportion will be within ±0.04 of the population proportion for th...

Q: For a one tailed test evaluating a treatment that is supposed to decrease scores, a researcher obtai...

A: The null and alternative hypotheses are;The null hypothesis states that the scores are unaffected by...