Question

4. A vice president in charge of sales for a large corporation claims that salespeople are averaging no more than 15 sales contacts per week. As a check on his claim, a sample size of 36 sales people are selected at random, and the number of contracts made by each is recorded for a single randomly selected week. From the sample the mean was found to be 17 and the standard deviation was found to be 3. At α = .05 is there enough evidence to support the researcher’s claim?

Name: 4 a vice president in charge of sales for a large corporation claims that salespeople are averaging no more than 15 sales contacts per week as a check on his claim a sample size of 36 sales 44643
Uploaded: 2023-04-12T06:24:42-08:00
Duration: 1 min 31 s
Channel: Rashmi Sinha
Description: 4 a vice president in charge of sales for a large corporation claims that salespeople are averaging no more than 15 sales contacts per week as a check on his claim a sample size of 36 sales 44643

          4.  A vice president in charge of sales for a large
corporation claims that salespeople are averaging no more than 15
sales contacts per week.  As a check on his claim, a sample
size of 36 sales people are selected at random, and the number of
contracts made by each is recorded for a single randomly selected
week.  From the sample the mean was found to be 17 and the
standard deviation was found to be 3.  At α = .05 is there
enough evidence to support the researcher’s claim?

Added by Nuria O.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Rashmi Sinha

04/12/2023

Step 1

Null hypothesis (H₀): μ ≤ 15 (The average number of sales contacts per week is no more than 15) Alternative hypothesis (H₁): μ > 15 (The average number of sales contacts per week is greater than 15) Show more…

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4. A vice president in charge of sales for a large corporation claims that salespeople are averaging no more than 15 sales contacts per week. As a check on his claim, a sample size of 36 sales people are selected at random, and the number of contracts made by each is recorded for a single randomly selected week. From the sample the mean was found to be 17 and the standard deviation was found to be 3. At α = .05 is there enough evidence to support the researcher’s claim?