The average commission charged by full-service brokerage firms on a sale of common stock is $144 (), and the standard deviation () is $52. Joel

The average commission charged by full-service brokerage firms on a sale of common stock is $144 (μ), and the standard deviation (σ) is $52. Joel Rogers has taken a random sample of 121 trades by his clients and determined that they paid an average commission (x̄) of $151. At the 0.10 significance level, can Joel conclude that his clients’ commissions are higher than the industry average?