Math

StatisticsQ&A LibraryYou want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=56.7σ=56.7. You would like to be 98% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? Round up to nearest whole number.n =Question

Asked Nov 23, 2019

6 views

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=56.7σ=56.7. You would like to be 98% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required? Round up to nearest whole number.*n* =

Step 1

**Margin of error, Sample size**

Given data

Standard deviation = 56.7

Confidence interval = 0.98

Significance level(α) = 1- 0....

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: The following data represent the means for each treatment condition in a two-factor experiment. Not...

A: Let z is the missing value.

Q: A test of H0: μ = 53 versus H1: μ < 53 is performed using a significance level of α = 0.01. the p...

A: Type I error (α):The Type I error is committed, if the null hypothesis is rejected, when it might ac...

Q: A 95% confidence interval for the mean was computed with a sample of size 90 to be (16,22). Then the...

A: Computation of mean:For 95% confidence interval, the critical value is 1.96. [using EXCEL formula, ...

Q: the football coach at state university wishes to determine if there is adecrease in offensive produc...

A: From the given information, the sample size is less than 30, the population standard deviations are ...

Q: State, with an explanation, which measures of central tendency gives the best description of the fol...

A: Median is the best measure of central tendency. Mean is a measure of central tendency and it represe...

Q: number 7

A: a.The formula for mean and standard deviation is given by:

Q: Note: Please explain your answers to all questions, what's the sample space? How do you calculate th...

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you re...

Q: Statistics Question

A: Note:Since the mentioned table is not given, we have used Excel to calculate the z-value.

Q: Assume that the differences are normally distributed. Complete parts (a) through (d) below. ...

A: (a)The difference for each pair of data is obtained as shown below:The formula for the difference fo...