Descriptive statistics, Descriptive statistics

Descriptive statistics

Reference no: EM1319804

Question: The average supermarket trip takes twenty two minutes. Assume that in an effort to test this claim, a sample of 50 shoppers at a local supermarket were a studied. The mean shopping time for the sample of 50 shoppers was 25.36 minutes with a standard deviation of 7.24 minutes. Using the 0.10 level of significance, is there evidence that the mean shopping time at the local supermarket is different from the claimed value of twenty two minutes?’

Reference no: EM1319804

Questions Cloud

Find the p value & explain its meaning : A recent study reported that college students study for an average of four hours per day. You believe this figure is too large & you decide to conduct your own test. Find the p value & explain its meaning.

Determine the population mean : Determine the population mean

Use the world bank definitions for low income countries : Use the World Bank definitions for low income countries

Total fertility rate changes : Starting with a hypothetical population of 14,000 people and an even age distribution [1,000 in each age group from 1-5 to 66-70 years], suppose that the population initially has a total fertility rate of 2.0 and an average life span of 70 years.

Descriptive statistics : Descriptive statistics

Hypothesis testing for single mean : Hypothesis testing for single mean.

Population growth rate : Population growth rate

Find the z value to the right of the means : Find the z value to the right of the means so that 53.98% of the area under the curve lies to the left.

The mean number of patients treated in the emergency room : A random sample of 48 days taken at a large hospital shows that averages of 38 patients were treated in the emergency room per day. The standard deviation for the population is four. Determine the 99% confidence interval of the mean number of patient..

User Account

All Pages